From 3a1f71a8cbda4f8b8ea6be73056489fc70fb1d7f Mon Sep 17 00:00:00 2001
From: Harrish135 <24ucs135harrish@kgkite.ac.in>
Date: Fri, 6 Dec 2024 12:13:35 +0530
Subject: [PATCH 01/39] Modified easy 01 by harrish

---
 problems/easy/easy_q1.py |  6 +++---
 problems/easy/easy_q2.py | 12 ++++++------
 problems/easy/easy_q3.py |  5 +++--
 problems/easy/easy_q4.py |  8 ++++----
 4 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 546c19b..d724032 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -1,7 +1,7 @@
 # Check Even or Odd: Write a program to check if a given number is even or odd.
 
 num = int(input("Enter a number: "))
-if (num / 2) != 0:
-   print("{0} is Odd".format(num))
+if (num % 2) != 0:
+   print("{0} is odd".format(num))
 else:
-   print("{0} is Even".format(num))
+   print("{0} is odd".format(num))
diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index 8c49830..dcae114 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -1,11 +1,11 @@
 # Find the Largest Number: Accept two numbers and print the larger one.
 def largest_of_two(a, b):
     if a > b:
-        return b   
+        return a  
     else:
-        return a
-if __name__ == "__main__":
-    num1 = int(input("Enter the First Number :"))
-    num2 = int(input("Enter the Second Number :"))
-    res = largest_of_two(num1,num1)
+        return b
+if __name__=="__main__":
+    a = int(input("Enter the First Number :"))
+    b = int(input("Enter the Second Number :"))
+    res = largest_of_two(a,b)
     print(res)
\ No newline at end of file
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index 8df3340..609b45a 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,8 +1,9 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
     if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
-        return "Not a Leap Year"   
-    return "Leap Year"
+        return "Leap Year" 
+    else:  
+        return "Not Leap Year"
 if __name__ == "__main__":
     
     num = int(input("Enter the number :"))
diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 8b1dc9d..4617aaf 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,14 +1,14 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
 def check_number(num):
-    if num > 0:
+    if num < 0:
         print("Negative")  
-    elif num < 0:
+    elif num > 0:
         print("Positive")  
     else:
-        print("Number is negative")   
+        print("Number is zero")   
         
 if __name__ == "__main__":
-    num = input("Enter the Number : ")
+    num =int(input("Enter the Number : "))
     res = check_number(num)
     print(res)
     

From d8985b5547e0b8859882097cc0f83457f189b72a Mon Sep 17 00:00:00 2001
From: Anushri Thirumavalavan <anushri6688@gmail.com>
Date: Fri, 6 Dec 2024 09:00:53 +0200
Subject: [PATCH 02/39] changed the logical error

---
 problems/easy/easy_q1.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 546c19b..dedb9fb 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -1,7 +1,7 @@
 # Check Even or Odd: Write a program to check if a given number is even or odd.
 
 num = int(input("Enter a number: "))
-if (num / 2) != 0:
-   print("{0} is Odd".format(num))
+if num % 2 != 0:
+   print("{0} is odd".format(num))
 else:
-   print("{0} is Even".format(num))
+   print("{0} is even".format(num))

From 44e02b824dbc60529daa894951d5b9c4aa002504 Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 12:40:17 +0530
Subject: [PATCH 03/39] I have changed a simple changes throughout the bugged
 code

---
 problems/easy/easy_q1.py  |  2 +-
 problems/easy/easy_q16.py |  5 +++--
 problems/easy/easy_q2.py  |  2 +-
 problems/easy/easy_q3.py  |  5 +++--
 problems/medium/m1.py     | 10 ++++++----
 problems/medium/m17.py    | 22 +++-------------------
 6 files changed, 17 insertions(+), 29 deletions(-)

diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 546c19b..50fa9f4 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -1,7 +1,7 @@
 # Check Even or Odd: Write a program to check if a given number is even or odd.
 
 num = int(input("Enter a number: "))
-if (num / 2) != 0:
+if (num % 2) != 0:
    print("{0} is Odd".format(num))
 else:
    print("{0} is Even".format(num))
diff --git a/problems/easy/easy_q16.py b/problems/easy/easy_q16.py
index b810a85..42d79fe 100644
--- a/problems/easy/easy_q16.py
+++ b/problems/easy/easy_q16.py
@@ -1,6 +1,7 @@
 # Print the Sum of First and Last Array Element
 def sum_first_last(arr):
-    return arr[1] + arr[-1]  
+    return arr[0] + arr[-1]  
 if __name__ == "__main__":
     # Handle the input  by Yourself
-    sum_first_last()
\ No newline at end of file
+    arr=[1,2,3,4,5]
+    print(sum_first_last(arr))
\ No newline at end of file
diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index 8c49830..d65ab72 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -8,4 +8,4 @@ def largest_of_two(a, b):
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))
     res = largest_of_two(num1,num1)
-    print(res)
\ No newline at end of file
+    print(res,"is the largest number")
\ No newline at end of file
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index 8df3340..6dcb097 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,8 +1,9 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
-    if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
+    if year % 4 != 0 and year % 100 == 0 or year % 400 != 0:   
         return "Not a Leap Year"   
-    return "Leap Year"
+    else:
+        return "Leap Year"
 if __name__ == "__main__":
     
     num = int(input("Enter the number :"))
diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index dddb03c..c994025 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -12,15 +12,17 @@ def math_operations_menu():
 
     a, b = map(int, input("Enter two numbers: ").split())
 
-    if choice == 1:
+    if choice == 2:
         print("Subtraction:", a - b)   
-    elif choice == 2:
+    elif choice == 1:
         print("Addition:", a + b)   
-    elif choice == 3:
-        print("Division:", a / b)   
     elif choice == 4:
+        print("Division:", a / b)   
+    elif choice == 3:
         print("Multiplication:", a * b)   
     elif choice == 5:
         print("Modulo:", a // b)   
     else:
         print("Invalid option")
+
+math_operations_menu()
\ No newline at end of file
diff --git a/problems/medium/m17.py b/problems/medium/m17.py
index 095c21d..fddfa3e 100644
--- a/problems/medium/m17.py
+++ b/problems/medium/m17.py
@@ -1,21 +1,5 @@
 '''Write a program to reverse a given list without using built-in functions'''
 def reverse_list(lst):
-    start = -1
-    end = len(lst) 
-    
-    
-    while start > end:
-       
-        lst[start], lst[end] = lst[end], lst[start]
-        
-         
-        start -= 1
-        end += 1
-    
-    return lst
- 
-input_list = [1, 2, 3, 4, 5]
-print("Original list:", input_list)
-
-reversed_list = reverse_list(input_list)
-print("Reversed list:", reversed_list)
\ No newline at end of file
+    return lst[::-1]
+lst=[1,2,3,4,5]
+print(reverse_list(lst))
\ No newline at end of file

From 1ac33ef99332a949d63cc27e7c840f7fcec160c3 Mon Sep 17 00:00:00 2001
From: Kanishkaneya1929 <24uad147kanishka@kgkite.ac.in>
Date: Fri, 6 Dec 2024 12:41:13 +0530
Subject: [PATCH 04/39] find the largest number

---
 problems/easy/easy_q2.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index 8c49830..e8e9bd7 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -1,11 +1,11 @@
 # Find the Largest Number: Accept two numbers and print the larger one.
 def largest_of_two(a, b):
     if a > b:
-        return b   
+        return a 
     else:
-        return a
+        return b
 if __name__ == "__main__":
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))
-    res = largest_of_two(num1,num1)
+    res = largest_of_two(num1,num2)
     print(res)
\ No newline at end of file

From e8afa42d34e0f22c9c744d852d29fc4a1d48541e Mon Sep 17 00:00:00 2001
From: hanishdevaraj007 <hanishdevaraj@gmail.com>
Date: Fri, 6 Dec 2024 12:49:18 +0530
Subject: [PATCH 05/39] solved logically

---
 problems/medium/m1.py | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index dddb03c..f8173b7 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -10,17 +10,20 @@ def math_operations_menu():
     print("5. Modulo")
     choice = int(input("Enter your choice: "))
 
-    a, b = map(int, input("Enter two numbers: ").split())
+    a=int(input("Enter first numbers: "))
+    b=int(input("Enter second numbers: "))
 
     if choice == 1:
-        print("Subtraction:", a - b)   
-    elif choice == 2:
         print("Addition:", a + b)   
+    elif choice == 2:
+        print("Subtration:", a - b)   
     elif choice == 3:
-        print("Division:", a / b)   
-    elif choice == 4:
         print("Multiplication:", a * b)   
+    elif choice == 4:
+        print("Division:", a / b)   
     elif choice == 5:
         print("Modulo:", a // b)   
     else:
         print("Invalid option")
+
+math_operations_menu()
\ No newline at end of file

From feb1d05d12ce5dd94e88a265a387c4cb8325f42e Mon Sep 17 00:00:00 2001
From: Anushri Thirumavalavan <anushri6688@gmail.com>
Date: Fri, 6 Dec 2024 10:13:04 +0200
Subject: [PATCH 06/39] changed syntax which is an error before in palindrome

---
 problems/easy/easy_q10.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/problems/easy/easy_q10.py b/problems/easy/easy_q10.py
index 711a7ba..bdb63db 100644
--- a/problems/easy/easy_q10.py
+++ b/problems/easy/easy_q10.py
@@ -2,10 +2,9 @@
 def is_palindrome(num):
     original = num
     reverse = 0
-    do:
+    while num != 0:
         reverse = reverse * 10 + num % 10
         num //= 10
-    while num != 0 
     return reverse == original
 if __name__ == "__main__":
     nums = int(input("Enter the Number: "))

From 1927ade81612cb137c2897c0aa9d371346ffd0ba Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 13:58:25 +0530
Subject: [PATCH 07/39] Here there is an mistake in data type input and also
 the in the if conditions

---
 problems/easy/easy_q4.py | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 8b1dc9d..d2ee1de 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,16 +1,7 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
 def check_number(num):
-    if num > 0:
-        print("Negative")  
-    elif num < 0:
-        print("Positive")  
-    else:
-        print("Number is negative")   
-        
+    print("The given number is Negative" if (num  < 0 ) else  "The given number is Positive" if (num > 0) else "The given number is Zero")
 if __name__ == "__main__":
-    num = input("Enter the Number : ")
-    res = check_number(num)
-    print(res)
-    
-    
+    num = int(input("Enter the Number : "))
+    check_number(num)
     

From bfcdd9b9224c434092c0114d098a44cfcdc435d2 Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 14:07:31 +0530
Subject: [PATCH 08/39] here there is the mistakes in input data type and if
 elif else statements

---
 problems/easy/easy_q5.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/problems/easy/easy_q5.py b/problems/easy/easy_q5.py
index fbfab0b..ba7f110 100644
--- a/problems/easy/easy_q5.py
+++ b/problems/easy/easy_q5.py
@@ -2,16 +2,16 @@
 
 def grade_system(marks):
     if marks >= 90:
-        return "B"  
+        return "A"  
     elif marks >= 80:
-        return "A"   
+        return "B"   
     elif marks >= 70:
-        return "F"   
+        return "C"   
     else:
-        return "C"  
+        return "F"  
     
 if __name__ == "__main__":
-      num = input("Enter the Mark : ")
+      num = int(input("Enter the Mark : "))
       res = grade_system(num)
       print(res)
       

From 447143547770a00ed6ef124600068e55d9879c36 Mon Sep 17 00:00:00 2001
From: Kanishkaneya1929 <24uad147kanishka@kgkite.ac.in>
Date: Fri, 6 Dec 2024 14:08:57 +0530
Subject: [PATCH 09/39] odd or even

---
 problems/easy/easy_q1.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 546c19b..50fa9f4 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -1,7 +1,7 @@
 # Check Even or Odd: Write a program to check if a given number is even or odd.
 
 num = int(input("Enter a number: "))
-if (num / 2) != 0:
+if (num % 2) != 0:
    print("{0} is Odd".format(num))
 else:
    print("{0} is Even".format(num))

From 05c5a0664915e0d73182b66d76a3b95d6f35a59a Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 14:13:45 +0530
Subject: [PATCH 10/39] here there is an error in increment operater

---
 problems/easy/easy_q6.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/problems/easy/easy_q6.py b/problems/easy/easy_q6.py
index 3ac65c7..7b3cef9 100644
--- a/problems/easy/easy_q6.py
+++ b/problems/easy/easy_q6.py
@@ -3,9 +3,8 @@ def print_numbers(n):
     i = 1
     while i <= n:
         print(i)
-        n -= 1   
+        i += 1   
 
 if __name__ == "__main__":
     num = int(input("Enter the Number "))
-    res = print_numbers(num)
-    print(res)
+    print_numbers(num)
\ No newline at end of file

From 241506876be12a4ce897f442e5aa178c785894ad Mon Sep 17 00:00:00 2001
From: Vinu Karthick D <vinukarthick6@gmail.com>
Date: Fri, 6 Dec 2024 14:21:11 +0530
Subject: [PATCH 11/39] fix: m1

---
 problems/medium/m1.py | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index ecb1be8..e896910 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -6,26 +6,26 @@ def math_operations_menu(choice):
     a, b = map(int, input("Enter two numbers(separated by commas): ").split(sep=","))
 
     if choice == 1:
-        print(f"Subtraction of {a} and {b}:{a - b}")   
+        print(f"Addition of {a} and {b} : {a + b}")   
     elif choice == 2:
-        print(f"Addition of {a} and {b}:{a + b}")   
+        print(f"Subtraction of {a} and {b} : {a - b}")   
     elif choice == 3:
-        print(f"Division of {a} and {b}:{a / b}")   
+        print(f"Division of {a} and {b} : {a / b}")   
     elif choice == 4:
-        print(f"Multiplication of {a} and {b}:{a * b}")   
+        print(f"Multiplication of {a} and {b} : {a * b}")   
     elif choice == 5:
-        print(f"Modulus of {a} and {b}:{a // b}")   
+        print(f"Modulus of {a} and {b} : {a % b}")   
     elif choice == 6:
-        print(f"{a} to the power of {b}:{a**b}")
+        print(f"{a} to the power of {b} : {a**b}")
     else:
         print("Invalid option!!!")
 print("-------------Mathematical operation menu---------------")
-print("1. Add")
-print("2. Subtract")
+print("1. Subtract")
+print("2. Add")
 print("3. Multiply")
 print("4. Divide")
 print("5. Modulus")
-print("6. Expontential")
+print("6. Exponential")
 choice = int(input("Enter your choice: "))
 math_operations_menu(choice)
 print("-------------------------------------------------------")
\ No newline at end of file

From 5cf333311295de7a36760041990f5b6969493411 Mon Sep 17 00:00:00 2001
From: shridhanya06 <shridhanyasb@outlook.com>
Date: Fri, 6 Dec 2024 14:24:03 +0530
Subject: [PATCH 12/39] leap year syntax corrected

---
 problems/easy/easy_q3.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index 8df3340..ef0ff98 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,8 +1,9 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
     if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
-        return "Not a Leap Year"   
-    return "Leap Year"
+        return "Not a Leap Year" 
+    else:  
+        return "Leap Year"
 if __name__ == "__main__":
     
     num = int(input("Enter the number :"))

From 16eb42ad67b50b8a506a8f3523efebc5e26ea87f Mon Sep 17 00:00:00 2001
From: Harrish135 <24ucs135harrish@kgkite.ac.in>
Date: Fri, 6 Dec 2024 14:24:26 +0530
Subject: [PATCH 13/39] Updated by Harrish

---
 problems/easy/easy_q10.py |  5 +++--
 problems/easy/easy_q11.py |  8 +++++---
 problems/easy/easy_q12.py | 10 +++++-----
 problems/easy/easy_q13.py |  4 ++--
 problems/easy/easy_q14.py | 11 +++++++----
 problems/easy/easy_q15.py | 11 ++++++-----
 problems/easy/easy_q16.py |  5 +++--
 problems/easy/easy_q17.py |  4 +++-
 problems/easy/easy_q18.py |  3 ++-
 problems/easy/easy_q4.py  |  2 +-
 problems/easy/easy_q5.py  | 10 +++++-----
 problems/easy/easy_q6.py  |  8 ++++----
 problems/easy/easy_q7.py  |  4 ++--
 problems/easy/easy_q8.py  |  4 ++--
 problems/easy/easy_q9.py  |  8 ++++----
 15 files changed, 54 insertions(+), 43 deletions(-)

diff --git a/problems/easy/easy_q10.py b/problems/easy/easy_q10.py
index 711a7ba..6620fd9 100644
--- a/problems/easy/easy_q10.py
+++ b/problems/easy/easy_q10.py
@@ -2,10 +2,11 @@
 def is_palindrome(num):
     original = num
     reverse = 0
-    do:
+    while True:
         reverse = reverse * 10 + num % 10
         num //= 10
-    while num != 0 
+        if num != 0:
+            break 
     return reverse == original
 if __name__ == "__main__":
     nums = int(input("Enter the Number: "))
diff --git a/problems/easy/easy_q11.py b/problems/easy/easy_q11.py
index 667d8e9..c3cc5fc 100644
--- a/problems/easy/easy_q11.py
+++ b/problems/easy/easy_q11.py
@@ -1,4 +1,4 @@
-# Day of the Week: Write a program that takes a number (1-7) and prints the corresponding day of the week using a switch case.
+#
 def day_of_week(day):
     switch = {
         1: "Monday",
@@ -9,10 +9,12 @@ def day_of_week(day):
         6: "Saturday",
         7: "Sunday"
     }
-    return switch[8]   
+    if day < 1 or day > 7:
+        return "Invalid day"
+    return switch[day]
 if __name__ == "__main__":
-    
     xcd = day_of_week(32)
     print(xcd)
+
     
     
diff --git a/problems/easy/easy_q12.py b/problems/easy/easy_q12.py
index 85f2ebf..e23a9de 100644
--- a/problems/easy/easy_q12.py
+++ b/problems/easy/easy_q12.py
@@ -1,10 +1,10 @@
 # Calculator: Accept two numbers and an operator (+, -, *, /) and perform the Calculation.
 def calculator(a, b, operator):
     switch = {
-        '+': a - b,   
-        '-': a * b,  
-        '*': a / b,   
-        '/': a + b    
+        '+': a + b,   
+        '-': a - b,  
+        '*': a * b,   
+        '/': a / b    
     }
     return switch.get(operator, "Invalid Operator")
 
@@ -12,6 +12,6 @@ def calculator(a, b, operator):
     n1 = int(input("Enter the Number 1 :"))
     n2 = int(input("Enter the Number 2 :"))
     opr  = input("Enter the Operator :")
-    result = calculator(opr,n2,n1)
+    result = calculator(n1,n2,opr)
     print(result)
     
diff --git a/problems/easy/easy_q13.py b/problems/easy/easy_q13.py
index 24e98a6..90d0a0c 100644
--- a/problems/easy/easy_q13.py
+++ b/problems/easy/easy_q13.py
@@ -16,6 +16,6 @@ def month_name(month):
     }
     return switch[month + 1]   
 if __name__ == "__main__":
-    chooseMonthNum = float(input("Enter the Month: "))
+    chooseMonthNum = int(input("Enter the Month: "))
     result = month_name(chooseMonthNum)
-    print(result)
+    print(result)
\ No newline at end of file
diff --git a/problems/easy/easy_q14.py b/problems/easy/easy_q14.py
index eae63b0..10153a9 100644
--- a/problems/easy/easy_q14.py
+++ b/problems/easy/easy_q14.py
@@ -7,8 +7,11 @@ def vowel_or_consonant(char):
         'o': "Vowel",
         'u': "Vowel",
     }
-    return switch.get(char, "Vowel")   
+    return switch.get(char.lower(),"Constant")   
 if __name__ == "__main__":
-    characterInput  = int(input("Enter the charactrer : "))
-    res = vowel_or_consonant(characterInput)
-    print(res)
+    characterInput  = input("Enter the charactrer : ")
+    if len(characterInput)==1:
+      res = vowel_or_consonant(characterInput)
+      print(res)
+    else:
+       print("Please enter exactly one character.")
\ No newline at end of file
diff --git a/problems/easy/easy_q15.py b/problems/easy/easy_q15.py
index 2868314..c13c8bf 100644
--- a/problems/easy/easy_q15.py
+++ b/problems/easy/easy_q15.py
@@ -1,14 +1,15 @@
 # Grade Description: Write a program that accepts a grade (A, B, C, D, F) and prints its description (e.g., A = Excellent, B = Good, etc.) using a switch case.
 def grade_description(grade):
     switch = {
-        'A': "Good",
-        'B': "Average",
-        'C': "Poor",
-        'D': "Excellent",  
+        'A': "Excellent",
+        'B': "Good",
+        'C': "Average",
+        'D': "Poor",  
         'F': "Fail"
     }
-    return switch.get(grade, "Not a valid grade") 
+    return switch.get(grade.upper(), "Please enter a valid grade") 
 if __name__ == "__main__":
     rs = grade_description('Z')
     print(rs)
+
     
diff --git a/problems/easy/easy_q16.py b/problems/easy/easy_q16.py
index b810a85..279747f 100644
--- a/problems/easy/easy_q16.py
+++ b/problems/easy/easy_q16.py
@@ -1,6 +1,7 @@
 # Print the Sum of First and Last Array Element
 def sum_first_last(arr):
-    return arr[1] + arr[-1]  
+    return arr[0] + arr[-1]  
 if __name__ == "__main__":
     # Handle the input  by Yourself
-    sum_first_last()
\ No newline at end of file
+    arr=[2,5,8,7,6]
+    print(sum_first_last(arr))
\ No newline at end of file
diff --git a/problems/easy/easy_q17.py b/problems/easy/easy_q17.py
index 7a5356c..2f0840f 100644
--- a/problems/easy/easy_q17.py
+++ b/problems/easy/easy_q17.py
@@ -4,4 +4,6 @@ def print_x_n_times(x, n):
         print(x)
 if __name__ == "__main__":
  # Handle the input  by Yourself
- print_x_n_times()
\ No newline at end of file
+ x=input("Enter a character:")
+ n=int(input("enter the number of times to loop:"))
+ print_x_n_times(x,n)
\ No newline at end of file
diff --git a/problems/easy/easy_q18.py b/problems/easy/easy_q18.py
index abfc1ea..a14e71b 100644
--- a/problems/easy/easy_q18.py
+++ b/problems/easy/easy_q18.py
@@ -3,4 +3,5 @@ def last_char_of_string(s):
     return s[-2]  # Bug: Fetches second-to-last character instead of last
 if __name__ == "__main__":
  # Handle the input  by Yourself
- last_char_of_string()
\ No newline at end of file
+     s=[7,8,9,6]
+     print( last_char_of_string(s))
\ No newline at end of file
diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 4617aaf..621944f 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -10,7 +10,7 @@ def check_number(num):
 if __name__ == "__main__":
     num =int(input("Enter the Number : "))
     res = check_number(num)
-    print(res)
+    
     
     
     
diff --git a/problems/easy/easy_q5.py b/problems/easy/easy_q5.py
index fbfab0b..21310c6 100644
--- a/problems/easy/easy_q5.py
+++ b/problems/easy/easy_q5.py
@@ -2,16 +2,16 @@
 
 def grade_system(marks):
     if marks >= 90:
-        return "B"  
+        return "A"  
     elif marks >= 80:
-        return "A"   
+        return "B"   
     elif marks >= 70:
-        return "F"   
+        return "C"   
     else:
-        return "C"  
+        return "D"  
     
 if __name__ == "__main__":
-      num = input("Enter the Mark : ")
+      num = int(input("Enter the Mark : "))
       res = grade_system(num)
       print(res)
       
diff --git a/problems/easy/easy_q6.py b/problems/easy/easy_q6.py
index 3ac65c7..5fcbf19 100644
--- a/problems/easy/easy_q6.py
+++ b/problems/easy/easy_q6.py
@@ -3,9 +3,9 @@ def print_numbers(n):
     i = 1
     while i <= n:
         print(i)
-        n -= 1   
+        i+= 1   
 
 if __name__ == "__main__":
-    num = int(input("Enter the Number "))
-    res = print_numbers(num)
-    print(res)
+    n= int(input("Enter the Number "))
+    res = print_numbers(n)
+    
diff --git a/problems/easy/easy_q7.py b/problems/easy/easy_q7.py
index 8efa72e..bb714ef 100644
--- a/problems/easy/easy_q7.py
+++ b/problems/easy/easy_q7.py
@@ -3,10 +3,10 @@ def sum_of_digits(num):
     total = 0
     while num > 0:
         total += num % 10
-        num = num + 10  
+        num = num//10  
     return total
 
 if __name__ == "__main__":
     num = int(input("Enter the Number : "))
-    
+    print(sum_of_digits(num))
     
diff --git a/problems/easy/easy_q8.py b/problems/easy/easy_q8.py
index 794332a..aeb3dd1 100644
--- a/problems/easy/easy_q8.py
+++ b/problems/easy/easy_q8.py
@@ -3,9 +3,9 @@ def reverse_number(num):
     rev = 0
     while num != 0:
         digit = num % 10
-        rev = rev + digit   
+        rev = rev*10+ digit   
         num //= 10
-    return num   
+    return rev 
 if __name__ == "__main__":
     num = int(input("Enter num : "))
     res = reverse_number(num)
diff --git a/problems/easy/easy_q9.py b/problems/easy/easy_q9.py
index 96af443..9a0e4fa 100644
--- a/problems/easy/easy_q9.py
+++ b/problems/easy/easy_q9.py
@@ -3,11 +3,11 @@ def factorial(n):
     result = 1
     while n > 0:
         result *= n
-        n += 1   
+        n -= 1   
     return result
 
 if __name__ == "__main__":
-    num = int(input("Enter the Number :"))
-    factorial(num*7)
-    print(num)
+    n= int(input("Enter the Number :"))
+    print(factorial(n))
+
     

From 3293490608aa93afbba6f5662fefb6adfc222cc3 Mon Sep 17 00:00:00 2001
From: hanishdevaraj007 <hanishdevaraj@gmail.com>
Date: Fri, 6 Dec 2024 14:33:59 +0530
Subject: [PATCH 14/39] takes long time to check area,perimeter of all
 shapes....but it works

---
 problems/medium/m11.py | 45 +++++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 22 deletions(-)

diff --git a/problems/medium/m11.py b/problems/medium/m11.py
index a6422c7..e09e520 100644
--- a/problems/medium/m11.py
+++ b/problems/medium/m11.py
@@ -1,36 +1,36 @@
 # Menu driven program to calculate perimeter and area of different shapes
 
 def per_circle(radius):
-    perimeter = 3.14 * radius   
-    print("Perimeter of Circle: ", perimeters)  
+    perimeter =2* 3.14 * radius   
+    print("Perimeter of Circle: ", perimeter)  
 
 def per_triangle(side1, side2, side3):
-    perimeter = side1 + side3  
+    perimeter = side1 + side2+ side3  
     print("Perimeter of Triangle: ", perimeter)
 
 def per_rectangle(height, width):
-    perimeter = (height + width)  
-    print("Perimeter of Rectangle: ", perimeters)  
+    perimeter = 2*(height + width)  
+    print("Perimeter of Rectangle: ", perimeter)  
 
 def per_square(side):
-    perimeter = side * 3   
+    perimeter = side * 4   
     print("Perimeter of Square: ", perimeter)
 
  
 def a_circle(radius):
-    area = 3.14 * radius ** 2
-    print("Area of Circle: ", areas)   
+    area = 3.14 * (radius ** 2)
+    print("Area of Circle: ", area)   
 
 def a_triangle(base, height):
     area = base * height 
     print("Area of Triangle: ", area)
 
 def a_rectangle(height, width):
-    area = height + width   
+    area = height * width   
     print("Area of Rectangle: ", area)
 
 def a_square(side):
-    area = side * 3  
+    area = side *2  
     print("Area of Square: ", area)
     
 print("\nWELCOME TO MENSURATION PROGRAM! TRY CALCULATING PERIMETER AND AREA OF DIFFERENT GEOMETRIC SHAPES.")
@@ -53,10 +53,10 @@ def a_square(side):
             choice1 = int(input("\nEnter choice for calculations: "))
             if choice1 == 1:
                 radius = float(input("Enter Radius of Circle: "))   
-                per_circles(radius)   
+                per_circle(radius)   
             elif choice1 == 2:
                 radius = float(input("Enter Radius of Circle: "))
-                a_circle() 
+                a_circle(radius) 
             elif choice1 == 3:
                 break
             else:
@@ -69,13 +69,13 @@ def a_square(side):
             print("3. Exit")
             choice1 = int(input("\nEnter choice for calculations: "))
             if choice1 == 1:
-                side1 = int(input("Enter length of side1: "))
-                side2 = int(input("Enter length of side2: "))
-                side3 = int(input("Enter length of side3: "))
-                per_triangle(side1, side2)  
+                side1 = float(input("Enter length of side1: "))
+                side2 = float(input("Enter length of side2: "))
+                side3 = float(input("Enter length of side3: "))
+                per_triangle(side1,side2,side3)  
             elif choice1 == 2:
                 base = float(input("Enter base of triangle: "))
-                height = input("Enter height of triangle: ")  
+                height = float(input("Enter height of triangle: "))  
                 a_triangle(base, height)
             elif choice1 == 3:
                 break
@@ -89,12 +89,13 @@ def a_square(side):
             print("3. Exit")
             choice1 = int(input("\nEnter choice for calculations: "))
             if choice1 == 1:
-                height = int(input("Enter height of rectangle: "))
-                per_rectangle(height)  
+                height = float(input("Enter height of rectangle: "))
+                width = float(input("Enter width of rectangle: "))
+                per_rectangle(height,width)  
             elif choice1 == 2:
                 height = float(input("Enter height of rectangle: "))
                 width = int(input("Enter width of rectangle: "))
-                a_rectangle(height)  
+                a_rectangle(height,width)  
             elif choice1 == 3:
                 break
             else:
@@ -107,10 +108,10 @@ def a_square(side):
             print("3. Exit")
             choice1 = int(input("\nEnter choice for calculations: "))
             if choice1 == 1:
-                side = int(input("Enter side of square: "))
+                side = float(input("Enter side of square: "))
                 per_square(side)
             elif choice1 == 2:
-                side = input("Enter side of square: ")   
+                side = int(input("Enter side of square: "))   
                 a_square(side)
             elif choice1 == 3:
                 break

From 94a24ef0dba64f48e6eb4c53fa65cbb9770276fd Mon Sep 17 00:00:00 2001
From: hanishdevaraj007 <hanishdevaraj@gmail.com>
Date: Fri, 6 Dec 2024 14:44:17 +0530
Subject: [PATCH 15/39] m10 completed with small alterations!!

---
 problems/medium/m10.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/problems/medium/m10.py b/problems/medium/m10.py
index 83c82f5..43a9c88 100644
--- a/problems/medium/m10.py
+++ b/problems/medium/m10.py
@@ -11,7 +11,7 @@ def game_menu():
         if choice == 1:
             target = random.randint(1, 100)
             guess = int(input("Guess a number between 1 and 100: "))
-            if guess = target:   
+            if guess == target:   
                 print("You won!")
             else:
                 print("Try Again")
@@ -31,3 +31,4 @@ def game_menu():
             break
         else:
             print("Invalid Choice")
+game_menu()
\ No newline at end of file

From 4d2b71c20113b1dcabc517b14b9b1c54975e5713 Mon Sep 17 00:00:00 2001
From: kishore <yournewemail@example.com>
Date: Fri, 6 Dec 2024 14:58:48 +0530
Subject: [PATCH 16/39] The number is positive ,Negative, or Zero

---
 problems/easy/easy_q4.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 8b1dc9d..924bf94 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,8 +1,8 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
 def check_number(num):
-    if num > 0:
+    if num < 0:
         print("Negative")  
-    elif num < 0:
+    elif num > 0:
         print("Positive")  
     else:
         print("Number is negative")   

From 86b97141f912e06e6e1abad63022aed65db1b2c4 Mon Sep 17 00:00:00 2001
From: hanishdevaraj007 <hanishdevaraj@gmail.com>
Date: Fri, 6 Dec 2024 15:01:32 +0530
Subject: [PATCH 17/39] Let's play same games without any error....(m10)

---
 problems/medium/m10.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/problems/medium/m10.py b/problems/medium/m10.py
index 43a9c88..496e1a0 100644
--- a/problems/medium/m10.py
+++ b/problems/medium/m10.py
@@ -31,4 +31,8 @@ def game_menu():
             break
         else:
             print("Invalid Choice")
-game_menu()
\ No newline at end of file
+x=input("Can we play some games?? (type yes and no)")
+if x=="yes":
+    game_menu()
+else:
+    print("Okey , let's play later!")
\ No newline at end of file

From a4fb0378d95b8b342d037c19251fd4aa8b0a3f71 Mon Sep 17 00:00:00 2001
From: shridhanya06 <shridhanyasb@outlook.com>
Date: Fri, 6 Dec 2024 15:02:20 +0530
Subject: [PATCH 18/39] changes done from code 1 to 3

---
 problems/easy/easy_q2.py | 2 +-
 problems/easy/easy_q3.py | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index 8c49830..455f8f5 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -7,5 +7,5 @@ def largest_of_two(a, b):
 if __name__ == "__main__":
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))
-    res = largest_of_two(num1,num1)
+    res = largest_of_two(num1,num2)
     print(res)
\ No newline at end of file
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index ef0ff98..9c57ae1 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,9 +1,9 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
     if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
-        return "Not a Leap Year" 
+        return "Leap Year" 
     else:  
-        return "Leap Year"
+        return "not a Leap Year"
 if __name__ == "__main__":
     
     num = int(input("Enter the number :"))

From 2ef1869577c085ae1f8895fe0d4d92937862d228 Mon Sep 17 00:00:00 2001
From: kishore <yournewemail@example.com>
Date: Fri, 6 Dec 2024 15:06:49 +0530
Subject: [PATCH 19/39] initial commit

---
 problems/easy/easy_q2.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index e8e9bd7..b22eae2 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -1,9 +1,9 @@
 # Find the Largest Number: Accept two numbers and print the larger one.
 def largest_of_two(a, b):
     if a > b:
-        return a 
-    else:
         return b
+    else:
+        return a
 if __name__ == "__main__":
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))

From f4c48a222c1f4fe8a8854492b70c04d0ef5b9386 Mon Sep 17 00:00:00 2001
From: Srihari-tech2dive <sriharicbe07@gmail.com>
Date: Fri, 6 Dec 2024 11:45:34 +0200
Subject: [PATCH 20/39] Update easy_q2.py

I have fixed error
---
 problems/easy/easy_q2.py | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index f459081..c1618f6 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -1,33 +1,17 @@
 # Find the Largest Number: Accept two numbers and print the larger one.
 def largest_of_two(a, b):
     if a > b:
- 
+        return a
         print(num1,"larger")
     else:
+        return b
         print(num2,"larger")
     
 if __name__ == "__main__":
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second  :"))
-    res = largest_of_two(num1,num1)
+    res = largest_of_two(num1,num2)
     print(res)
  
  
-        return a 
- 
-        return a   
- 
-    else:
-        return b
-if __name__ == "__main__":
-    num1 = int(input("Enter the First Number :"))
-    num2 = int(input("Enter the Second Number :"))
-    res = largest_of_two(num1,num2)
-  keerthi
-    print("The Largest Number is",res)
- 
-    print(res)
-
     
- main
- 

From 54ce64252049a68cffb145bcab85f37414cf265f Mon Sep 17 00:00:00 2001
From: kishore <yournewemail@example.com>
Date: Fri, 6 Dec 2024 15:16:37 +0530
Subject: [PATCH 21/39] The number N using a While loop

---
 problems/easy/easy_q6.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/problems/easy/easy_q6.py b/problems/easy/easy_q6.py
index 3ac65c7..b7305df 100644
--- a/problems/easy/easy_q6.py
+++ b/problems/easy/easy_q6.py
@@ -3,9 +3,8 @@ def print_numbers(n):
     i = 1
     while i <= n:
         print(i)
-        n -= 1   
-
+        i+= 1   
 if __name__ == "__main__":
-    num = int(input("Enter the Number "))
+    num = int(input("Enter the Number: "))
     res = print_numbers(num)
     print(res)

From 14ff48687e655d34344873e74521dfceb4bf9d57 Mon Sep 17 00:00:00 2001
From: Vinu Karthick D <vinukarthick6@gmail.com>
Date: Fri, 6 Dec 2024 15:17:32 +0530
Subject: [PATCH 22/39] fix: m3

---
 problems/medium/m3.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/problems/medium/m3.py b/problems/medium/m3.py
index b0e1d2c..1164e0e 100644
--- a/problems/medium/m3.py
+++ b/problems/medium/m3.py
@@ -12,18 +12,20 @@ def string_manipulation_menu():
         count = 0
         for char in s:
             if char in vowels:
-                count -= 1 
+                count += 1 
         print("Number of Vowels:", count)
     elif choice == 2:
-        print("Reversed String:", s[1::-1])  
+        print("Reversed String:", s[::-1])  
     elif choice == 3:
-        if s[::-1] != s:
+        if s[::-1] == s:
             print("Palindrome")  
         else:
             print("Not a Palindrome")
     elif choice == 4:
         old = input("Substring to replace: ")
         new = input("Replacement substring: ")
+        s = s.replace(old, new)  
         print("Updated String:", s)   
     else:
         print("Invalid option")
+string_manipulation_menu()
\ No newline at end of file

From 6990b757fe704467940a2f99c159948807a80554 Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 10:50:59 +0100
Subject: [PATCH 23/39] I have corrected the errors

---
 problems/easy/easy_q10.py | 11 +++++++----
 problems/easy/easy_q7.py  | 14 ++++++++------
 problems/easy/easy_q8.py  | 12 ++++++------
 problems/easy/easy_q9.py  | 10 +++++-----
 4 files changed, 26 insertions(+), 21 deletions(-)

diff --git a/problems/easy/easy_q10.py b/problems/easy/easy_q10.py
index 711a7ba..de59ac5 100644
--- a/problems/easy/easy_q10.py
+++ b/problems/easy/easy_q10.py
@@ -2,14 +2,17 @@
 def is_palindrome(num):
     original = num
     reverse = 0
-    do:
+    while True:
         reverse = reverse * 10 + num % 10
         num //= 10
-    while num != 0 
+        if num == 0:
+            break
     return reverse == original
+
 if __name__ == "__main__":
     nums = int(input("Enter the Number: "))
     res = is_palindrome(nums)
     print(res)
-    
-    
+
+
+
diff --git a/problems/easy/easy_q7.py b/problems/easy/easy_q7.py
index 8efa72e..829b613 100644
--- a/problems/easy/easy_q7.py
+++ b/problems/easy/easy_q7.py
@@ -1,12 +1,14 @@
-# Sum of Digits: Write a program to calculate the sum of digits of a number using a while loop.
 def sum_of_digits(num):
     total = 0
     while num > 0:
-        total += num % 10
-        num = num + 10  
+        total += num % 10  
+        num //= 10         
     return total
 
 if __name__ == "__main__":
-    num = int(input("Enter the Number : "))
-    
-    
+    num = int(input("Enter the Number: "))
+    if num < 0:  
+        num = -num
+    result = sum_of_digits(num)
+    print(f"Sum of digits: {result}")
+
diff --git a/problems/easy/easy_q8.py b/problems/easy/easy_q8.py
index 794332a..3966dad 100644
--- a/problems/easy/easy_q8.py
+++ b/problems/easy/easy_q8.py
@@ -1,13 +1,13 @@
  # Reverse a Number: Accept a number and print its reverse using a while loop.
 def reverse_number(num):
-    rev = 0
+    rev = ""
     while num != 0:
-        digit = num % 10
-        rev = rev + digit   
-        num //= 10
-    return num   
+        digit = num % 10    #digit = 123%10 = 3  12%10
+        rev = rev + str(digit)   #rev = 3
+        num //= 10      # num//= 10 = 12
+    return rev   
 if __name__ == "__main__":
-    num = int(input("Enter num : "))
+    num = int(input("Enter num : "))    #123
     res = reverse_number(num)
     print(res)
 
diff --git a/problems/easy/easy_q9.py b/problems/easy/easy_q9.py
index 96af443..fb375c6 100644
--- a/problems/easy/easy_q9.py
+++ b/problems/easy/easy_q9.py
@@ -1,13 +1,13 @@
 # Factorial of a Number: Write a program to calculate the factorial of a given number using a while loop.
 def factorial(n):
     result = 1
-    while n > 0:
-        result *= n
-        n += 1   
+    i=1
+    while i <= n:
+        result *= i
+        i += 1   
     return result
 
 if __name__ == "__main__":
     num = int(input("Enter the Number :"))
-    factorial(num*7)
-    print(num)
+    print(factorial(num))
     

From 9f65da3c318f4425ef22cd8e699b7d02e4180549 Mon Sep 17 00:00:00 2001
From: Naveen Kumar-2024-aib <naveen13524g@gmail.com>
Date: Fri, 6 Dec 2024 15:24:50 +0530
Subject: [PATCH 24/39] m17

---
 problems/medium/m17.py | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/problems/medium/m17.py b/problems/medium/m17.py
index e857a27..b0dc40b 100644
--- a/problems/medium/m17.py
+++ b/problems/medium/m17.py
@@ -1,16 +1,11 @@
 '''Write a program to reverse a given list without using built-in functions'''
 def reverse_list(lst):
-    start = -1
-    end = -len(lst) 
-    
-    
-    while start > end:
-       
+    start = 0
+    end = len(lst)-1
+    while start < end:
         lst[start], lst[end] = lst[end], lst[start]
-        
-         
-        start -= 1
-        end += 1
+        start += 1
+        end -= 1
     
     return lst
  

From a58fa2b442078039a96e318ae27b98bccf81a7a3 Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 11:01:51 +0100
Subject: [PATCH 25/39] i have changed in the value and input

---
 problems/easy/easy_q10.py |  2 ++
 problems/easy/easy_q11.py | 12 +++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/problems/easy/easy_q10.py b/problems/easy/easy_q10.py
index de59ac5..1a316c3 100644
--- a/problems/easy/easy_q10.py
+++ b/problems/easy/easy_q10.py
@@ -16,3 +16,5 @@ def is_palindrome(num):
 
 
 
+
+
diff --git a/problems/easy/easy_q11.py b/problems/easy/easy_q11.py
index 667d8e9..bf67a2b 100644
--- a/problems/easy/easy_q11.py
+++ b/problems/easy/easy_q11.py
@@ -9,10 +9,12 @@ def day_of_week(day):
         6: "Saturday",
         7: "Sunday"
     }
-    return switch[8]   
+    if day <=7 :
+        return switch[8]
+    else:
+        print("Error occured")   
 if __name__ == "__main__":
-    
-    xcd = day_of_week(32)
-    print(xcd)
-    
+    day = int(input("Enter a number (1-7) to get the day of the week: "))
+    result = day_of_week(day)
+    print(result)
     

From 8e637ca834838679738ba166fbf3c96d04518b2e Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 11:12:11 +0100
Subject: [PATCH 26/39] here the def function is not called and there is some
 mistakes in the formulas

---
 problems/medium/m8.py | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/problems/medium/m8.py b/problems/medium/m8.py
index b2b704b..9c42781 100644
--- a/problems/medium/m8.py
+++ b/problems/medium/m8.py
@@ -8,22 +8,28 @@ def conversion_menu():
         choice = int(input("Enter your choice: "))
 
         if choice == 1:
-            celsius = int(input("Enter temperature in Celsius: "))
-            fahrenheit = (celsius * 5 / 9) + 32   
+            celsius = float(input("Enter temperature in Celsius: "))
+            fahrenheit = (celsius * 9 / 5) + 32  
             print("Temperature in Fahrenheit:", fahrenheit)
         elif choice == 2:
-            fahrenheit = int(input("Enter temperature in Fahrenheit: "))
-            celsius = (fahrenheit - 32) * 5 / 9
+            fahrenheit = float(input("Enter temperature in Fahrenheit: "))
+            celsius = (fahrenheit - 32) * 5 / 9  
             print("Temperature in Celsius:", celsius)
         elif choice == 3:
             decimal = int(input("Enter a decimal number: "))
-            print(f"Binary: {bin(decimal)}, Octal: {decimal:O}, Hexadecimal: {decimal:X}")   
+            print(f"Binary: {bin(decimal)[2:]}, Octal: {oct(decimal)[2:]}, Hexadecimal: {hex(decimal)[2:].upper()}")  # Correct formatting
         elif choice == 4:
             km = float(input("Enter distance in kilometers: "))
-            miles = km / 0.621371  
+            miles = km * 0.621371  
             print("Distance in Miles:", miles)
+            miles_input = float(input("Enter distance in miles: "))
+            km = miles_input / 0.621371  
+            print("Distance in Kilometers:", km)
         elif choice == 5:
             print("Exiting...")
             break
         else:
             print("Invalid Choice")
+
+if __name__ == "__main__":
+    conversion_menu()

From 9dd79c348ed68af5e0e8c09c72ac7c819148688a Mon Sep 17 00:00:00 2001
From: Vinu Karthick D <vinukarthick6@gmail.com>
Date: Fri, 6 Dec 2024 15:44:08 +0530
Subject: [PATCH 27/39] fix: m2

---
 problems/medium/m2.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/problems/medium/m2.py b/problems/medium/m2.py
index d2007a7..f84e20d 100644
--- a/problems/medium/m2.py
+++ b/problems/medium/m2.py
@@ -3,17 +3,21 @@ def array_operations_menu():
     print("2. Largest Element")
     print("3. Smallest Element")
     print("4. Sort Array")
+
     choice = int(input("Enter your choice: "))
 
+
     arr = list(map(int, input("Enter array elements separated by space: ").split()))
 
     if choice == 1:
-        print("Sum:", sum(arr) * 2)   
+        print("Sum:", sum(arr))   
     elif choice == 2:
-        print("Largest Element:", min(arr))  
+        print("Largest Element:", max(arr))  
     elif choice == 3:
-        print("Smallest Element:", max(arr))   
+        print("Smallest Element:", min(arr))   
     elif choice == 4:
+        arr.sort()  # sorts the array in ascending order by default
         print("Sorted Array:", arr) 
     else:
         print("Invalid option")
+array_operations_menu()
\ No newline at end of file

From 4762b6259133814e7d6bd2069b5c277cd4d8bfbe Mon Sep 17 00:00:00 2001
From: shridhanya06 <shridhanyasb@outlook.com>
Date: Fri, 6 Dec 2024 15:45:46 +0530
Subject: [PATCH 28/39] made some changes in easy_q4.py

---
 problems/easy/easy_q4.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 8b1dc9d..fc47292 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,11 +1,11 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
 def check_number(num):
     if num > 0:
-        print("Negative")  
+        print("positive")  
     elif num < 0:
-        print("Positive")  
+        print("negative")  
     else:
-        print("Number is negative")   
+        print("Number is zero")   
         
 if __name__ == "__main__":
     num = input("Enter the Number : ")

From c4973a2ec71a396fcd4a20af8f7b115277c278e6 Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 11:19:58 +0100
Subject: [PATCH 29/39] I have corrected the code

---
 problems/easy/easy_q16.py | 6 +++++-
 problems/easy/easy_q17.py | 9 +++++----
 problems/easy/easy_q18.py | 5 +++--
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/problems/easy/easy_q16.py b/problems/easy/easy_q16.py
index 42d79fe..f593b76 100644
--- a/problems/easy/easy_q16.py
+++ b/problems/easy/easy_q16.py
@@ -3,5 +3,9 @@ def sum_first_last(arr):
     return arr[0] + arr[-1]  
 if __name__ == "__main__":
     # Handle the input  by Yourself
-    arr=[1,2,3,4,5]
+    arr=[]
+    n=int(input("Enter the Total number of Elements:"))
+    for i in range(n):
+        x=int(input("Enter the element :"))
+        arr.append(x)
     print(sum_first_last(arr))
\ No newline at end of file
diff --git a/problems/easy/easy_q17.py b/problems/easy/easy_q17.py
index 7a5356c..ccc0aea 100644
--- a/problems/easy/easy_q17.py
+++ b/problems/easy/easy_q17.py
@@ -1,7 +1,8 @@
 # Print X N Times
-def print_x_n_times(x, n):
-    for i in range(1, n):  # Bug: Loop runs one less time than expected
-        print(x)
+def print_x_n_times(x, n):  # Bug: Loop runs one less time than expected
+        print(x*n)
 if __name__ == "__main__":
  # Handle the input  by Yourself
- print_x_n_times()
\ No newline at end of file
+ n=int(input("Enter the number of times:"))
+ x="X"
+ print_x_n_times(x,n)
\ No newline at end of file
diff --git a/problems/easy/easy_q18.py b/problems/easy/easy_q18.py
index abfc1ea..9133d5e 100644
--- a/problems/easy/easy_q18.py
+++ b/problems/easy/easy_q18.py
@@ -1,6 +1,7 @@
 # Print Last Character of String
 def last_char_of_string(s):
-    return s[-2]  # Bug: Fetches second-to-last character instead of last
+    return s[-1]  # Bug: Fetches second-to-last character instead of last
 if __name__ == "__main__":
  # Handle the input  by Yourself
- last_char_of_string()
\ No newline at end of file
+ s=input("Enter the string:")
+ print(last_char_of_string(s))
\ No newline at end of file

From 60ee4d78afa34f4c9867bc58df515a77d8968ecc Mon Sep 17 00:00:00 2001
From: Srihari-tech2dive <sriharicbe07@gmail.com>
Date: Fri, 6 Dec 2024 12:21:17 +0200
Subject: [PATCH 30/39] Update easy_q1.py

changed operation and print statement
---
 problems/easy/easy_q1.py | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 7bc166e..3660ade 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -2,22 +2,15 @@
 
 num = int(input("Enter a number: "))
  
- 
-if num % 2 != 0:
-   print("{0} is odd".format(num))
-else:
-   print("{0} is even".format(num))
- 
+
  
 if (num % 2) == 0:
    print("{0} is Even".format(num))
 else:
    print("{0} is Odd".format(num))
  
- 
-if (num % 2) != 0:
-   print("{0} is odd".format(num))
-else:
-   print("{0} is odd".format(num))
 
+
+   
+ 
  

From 1c77aacec367545df3eaeec8ae353f9bff21ac2a Mon Sep 17 00:00:00 2001
From: RaahulKannaK <raahulkannak@gmail.com>
Date: Fri, 6 Dec 2024 15:52:04 +0530
Subject: [PATCH 31/39] Modified Armstrong Numbers

---
 problems/medium/m15.py | 40 +++++++++++++---------------------------
 1 file changed, 13 insertions(+), 27 deletions(-)

diff --git a/problems/medium/m15.py b/problems/medium/m15.py
index ab58cd0..afcb2e3 100644
--- a/problems/medium/m15.py
+++ b/problems/medium/m15.py
@@ -1,30 +1,16 @@
 '''Write a program to check if a number is an Armstrong number (e.g., 153  = 1^3 + 5^3 + 3^3 ) .'''
-def count_digits(n):
-   i = 0
-   while n > 0:
-      n //= 10
-      i += 1
-   return i
+a=input("Enter Number:")
+def Arms(a):
+   e=0
+   for i in a:
+      c=int(i)
+      d=c*c*c
+      e+=d
+   return e
 
-def sum(n):
-   i = count_digits(n)
-   s = 0
-   temp=n
-   while temp > 0:
-      digit = temp%10
-      temp//= 10
-      s += pow(digit,i)
-   return s
-
-
-num = 1634
-
- 
-s = sum(num)
-
- 
-if s == num:
-   print('Given number is an Armstrong Number')
+b=Arms(a)
+f=int(a)
+if b==f:
+   print(b,"is an Armstrong Number")
 else:
-   print('Given number is not an Armstrong Number')
-
+   print(b,"is not An Armstrong Number")
\ No newline at end of file

From 9f309db3cddc6536c9150c852641c8483de0187d Mon Sep 17 00:00:00 2001
From: Sharmily-Veeramani <sharmily41@gmail.com>
Date: Fri, 6 Dec 2024 15:55:13 +0530
Subject: [PATCH 32/39] changed the arithmetic symbol of '/' to '%'

---
 problems/easy/easy_q1.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 546c19b..50fa9f4 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -1,7 +1,7 @@
 # Check Even or Odd: Write a program to check if a given number is even or odd.
 
 num = int(input("Enter a number: "))
-if (num / 2) != 0:
+if (num % 2) != 0:
    print("{0} is Odd".format(num))
 else:
    print("{0} is Even".format(num))

From d58deae1d6d1811bbbf3da3039d84404f75b8c5d Mon Sep 17 00:00:00 2001
From: mohamedimthiyas2007 <imthiyazsabiri1@gmail.com>
Date: Fri, 6 Dec 2024 11:52:47 +0000
Subject: [PATCH 33/39] added f format which is not added before

---
 problems/easy/easy_q1.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 546c19b..5785085 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -2,6 +2,6 @@
 
 num = int(input("Enter a number: "))
 if (num / 2) != 0:
-   print("{0} is Odd".format(num))
+   print(f"{0} is Odd".format(num))
 else:
-   print("{0} is Even".format(num))
+   print(f"{0} is Even".format(num))

From 7ec4cd82063692cbfd439a8bedab394cf242e5b0 Mon Sep 17 00:00:00 2001
From: mohamedimthiyas2007 <imthiyazsabiri1@gmail.com>
Date: Fri, 6 Dec 2024 12:01:41 +0000
Subject: [PATCH 34/39] repeat two times of num1

---
 problems/easy/easy_q2.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index 8c49830..455f8f5 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -7,5 +7,5 @@ def largest_of_two(a, b):
 if __name__ == "__main__":
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))
-    res = largest_of_two(num1,num1)
+    res = largest_of_two(num1,num2)
     print(res)
\ No newline at end of file

From 277f1224b027ce386043f918e50bceb28721713a Mon Sep 17 00:00:00 2001
From: mohamedimthiyas2007 <imthiyazsabiri1@gmail.com>
Date: Fri, 6 Dec 2024 12:12:46 +0000
Subject: [PATCH 35/39] in 3rd line code we add logical mistake ! i will remove

---
 problems/easy/easy_q3.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index 8df3340..0626149 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,6 +1,6 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
-    if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
+    if year % 4 == 0 and year % 100 == 0 or year % 400 == 0:   
         return "Not a Leap Year"   
     return "Leap Year"
 if __name__ == "__main__":

From 51b8f84828f07e1f3f9d7dbf558fd5e856721679 Mon Sep 17 00:00:00 2001
From: mohamedimthiyas2007 <imthiyazsabiri1@gmail.com>
Date: Fri, 6 Dec 2024 13:36:29 +0000
Subject: [PATCH 36/39] added f format whic 5th and 7th line'

---
 problems/easy/easy_q4.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 8b1dc9d..a925fc3 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,14 +1,14 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
 def check_number(num):
     if num > 0:
-        print("Negative")  
+        print("positive")  
     elif num < 0:
-        print("Positive")  
+        print("negative")  
     else:
-        print("Number is negative")   
+        print("the number is zero")   
         
 if __name__ == "__main__":
-    num = input("Enter the Number : ")
+    num = int(input("Enter the Number : "))
     res = check_number(num)
     print(res)
     

From 76ac5ddf7b7ed95d45a30cfc5881b983d2294767 Mon Sep 17 00:00:00 2001
From: mohamedimthiyas2007 <imthiyazsabiri1@gmail.com>
Date: Fri, 6 Dec 2024 15:07:32 +0000
Subject: [PATCH 37/39] added zero divisional error

---
 problems/easy/easy_q2.py |  5 +---
 problems/easy/easy_q3.py |  7 +++--
 problems/easy/easy_q5.py | 23 +++++++--------
 problems/medium/m1.py    | 62 ++++++++++++++++++++++++----------------
 4 files changed, 53 insertions(+), 44 deletions(-)

diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index c0f1462..e7e115b 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -8,10 +8,7 @@ def largest_of_two(a, b):
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))
     res = largest_of_two(num1,num2)
-<<<<<<< HEAD
-    print(res)
-=======
     print(res)
 
     
->>>>>>> ba97dead197c3e5577b54dfdb8c34d42327f3c16
+
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index 0143c1d..501dadc 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,8 +1,9 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
-    if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
-        return "Leap Year"   
-    return "Not a Leap Year"
+    if year % 4 == 0 or year % 100 == 0 or year % 400 == 0:   
+        return "Leap Year"
+    else:
+         return "Not a Leap Year"
 if __name__ == "__main__":
     
     num = int(input("Enter the number :"))
diff --git a/problems/easy/easy_q5.py b/problems/easy/easy_q5.py
index 195d34d..cd6d1ee 100644
--- a/problems/easy/easy_q5.py
+++ b/problems/easy/easy_q5.py
@@ -1,17 +1,14 @@
-# Grading System: Write a program that takes a student’s marks as input and prints the grade (A, B, C, or F) based on given thresholds.
-
 def grade_system(marks):
-    if marks >= 90:
-        return "B"  
-    elif marks >= 80:
-        return "A"   
-    elif marks >= 70:
-        return "F"   
+    if marks >=90 and marks <=100:
+        return "A"  
+    elif marks >= 80 and marks <=90:
+        return "B"   
+    elif marks >= 70 and marks <=80:
+        return "C"   
     else:
-        return "C"  
+        return "D"  
     
 if __name__ == "__main__":
-      num = int(input("Enter the Mark : "))
-      res = grade_system(num)
-      print(res)
-      
+    num = int(input("Enter the Mark : "))
+    res = grade_system(num)
+    print(res)
\ No newline at end of file
diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index ecb1be8..7021189 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -1,31 +1,45 @@
-'''
-Create a menu to perform basic mathematical operations (addition, subtraction, multiplication, division, modulo) on two numbers.
-
-'''
 def math_operations_menu(choice):
-    a, b = map(int, input("Enter two numbers(separated by commas): ").split(sep=","))
+    try:
+        a, b = map(int, input("Enter two numbers (separated by a comma): ").split(sep=","))
+        
+        # Perform the operation based on user's choice
+        if choice == 1:
+            print(f"Addition of {a} and {b}: {a + b}")   
+        elif choice == 2:
+            print(f"Subtraction of {a} and {b}: {a - b}")   
+        elif choice == 3:
+            print(f"Multiplication of {a} and {b}: {a * b}")   
+        elif choice == 4:
+            if b == 0:
+                print("Error! Division by zero is not allowed.")
+            else:
+                print(f"Division of {a} and {b}: {a / b}")   
+        elif choice == 5:
+            if b == 0:
+                print("Error! Modulo by zero is not allowed.")
+            else:
+                print(f"Modulus of {a} and {b}: {a % b}")   
+        elif choice == 6:
+            print(f"{a} to the power of {b}: {a ** b}")
+        else:
+            print("Invalid option!!!")
+    except ValueError:
+        print("Invalid input! Please enter two valid numbers separated by a comma.")
 
-    if choice == 1:
-        print(f"Subtraction of {a} and {b}:{a - b}")   
-    elif choice == 2:
-        print(f"Addition of {a} and {b}:{a + b}")   
-    elif choice == 3:
-        print(f"Division of {a} and {b}:{a / b}")   
-    elif choice == 4:
-        print(f"Multiplication of {a} and {b}:{a * b}")   
-    elif choice == 5:
-        print(f"Modulus of {a} and {b}:{a // b}")   
-    elif choice == 6:
-        print(f"{a} to the power of {b}:{a**b}")
-    else:
-        print("Invalid option!!!")
-print("-------------Mathematical operation menu---------------")
+# Menu for mathematical operations
+print("-------------Mathematical Operation Menu---------------")
 print("1. Add")
 print("2. Subtract")
 print("3. Multiply")
 print("4. Divide")
 print("5. Modulus")
-print("6. Expontential")
-choice = int(input("Enter your choice: "))
-math_operations_menu(choice)
-print("-------------------------------------------------------")
\ No newline at end of file
+print("6. Exponential")
+
+# Get user's choice for operation
+try:
+    choice = int(input("Enter your choice: "))
+    math_operations_menu(choice)
+except ValueError:
+    print("Invalid choice! Please enter a number between 1 and 6.")
+
+print("-------------------------------------------------------")

From b11f62a9931c8b97d939c3fe4829af377fb1a106 Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 11:43:00 +0100
Subject: [PATCH 38/39] completed

---
 problems/medium/m13.py | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/problems/medium/m13.py b/problems/medium/m13.py
index 33dfa3f..ffad2e1 100644
--- a/problems/medium/m13.py
+++ b/problems/medium/m13.py
@@ -4,12 +4,15 @@
 def is_prime(num):
     if num < 2:
         return False
-    for i in range(2, num):
-        if num % i == 0:
+    n=num // 2 + 1
+    for i in range(2, n):
+        if n % i == 0:
             return False
     return True
 
 n = int(input("Enter a number: "))
-for i in range(2, n + 1):
-    if is_prime(i):
-        print(i)
+
+if is_prime(n):
+    print(f"The given number {n} is a not prime number ")
+else:
+    print(f"The given number {n} is a prime number ")
\ No newline at end of file

From eb5e991f05ef4daa39a8b6d2de1221cc632c3c10 Mon Sep 17 00:00:00 2001
From: mourishantony <mourishantonyc@gmail.com>
Date: Fri, 6 Dec 2024 22:39:39 +0530
Subject: [PATCH 39/39] Completed now

---
 problems/medium/m12.py | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/problems/medium/m12.py b/problems/medium/m12.py
index 7692543..48b725c 100644
--- a/problems/medium/m12.py
+++ b/problems/medium/m12.py
@@ -9,8 +9,10 @@ def multiply(x, y):
     return x * y
 
 def divide(x, y):
-    return x / y
-
+    try:
+        return x / y
+    except Exception as e :
+        print(f"Error occured due to {e}") 
 while True:
     print("\nMENU")
     print("1. Add")
@@ -23,7 +25,9 @@ def divide(x, y):
 
     if choice == '5':
         break
-
+    elif choice not in "1234" :
+        print("Invalid Choice")
+        continue
     num1 = float(input("Enter first number: "))
     num2 = float(input("Enter second number: "))
 
@@ -35,8 +39,5 @@ def divide(x, y):
         result = multiply(num1, num2)
     elif choice == '4':
         result = divide(num1, num2)
-    else:
-        print("Invalid choice")
-        continue
-
+    
     print("Result: ", result)