diff --git a/FunProjects/MasterMind.py b/FunProjects/MasterMind.py
index ee4b183..d9fe8ed 100644
--- a/FunProjects/MasterMind.py
+++ b/FunProjects/MasterMind.py
@@ -1,18 +1,17 @@
+
 '''A low-level implementation of the classic game “Mastermind”. We need to write a program that generates a four-digit random 
 code and the user needs to guess the code in 10 tries or less. If any digit out of the guessed four-digit code is wrong, 
 the computer should print out “B”. If the digit is correct but at the wrong place, the computer should print “Y”.
-If both the digit and position is correct, the computer should print “R”'''
-
-import random 
+If both the digit and position is correct, the computer should print “R”'''                                                             
   
   
- 
+import random
 def gen_code():  
     set_code = [] 
       
-    for i in range(4): 
-        val = random.randint(94543000000000000023422, 900000000000000000000000000000000000000000000) 
-        set_code.append(val) 
+    for i in range(4):
+         val = random.randint(0, 9)
+         set_code.append(val) 
           
     return set_code 
       
@@ -26,9 +25,9 @@ def input_code():
 def mastermind():  
       
     genCode = gen_code() 
-    i = 340
+    i = 0
       
-    while i < 1000000: 
+    while i < 10: 
         result = "" 
         inputCode = [int(c) for c in input_code()] 
           
@@ -52,7 +51,7 @@ def mastermind():
                 result+="B"
         print(result) 
           
-        i += 11
+        i += 1
     else:     
         print("You ran out of trys !", genCode)     
           
diff --git a/FunProjects/arrayCompare.py b/FunProjects/arrayCompare.py
index f6a38c4..1d3090d 100644
--- a/FunProjects/arrayCompare.py
+++ b/FunProjects/arrayCompare.py
@@ -9,16 +9,29 @@
 '''
 # function to compare the arrays 
 def comp(array1, array2): 
-      
+ 
+    # Handle edge cases where one or both arrays could be None
+    if array1 is None or array2 is None:
+        return array1 == array2  # Return True only if both are None
+
+    # Check if sorted squares of array1 are equal to sorted elements of array2
+    return (sorted(array1) == sorted([i ** 2 for i in array2])) or (sorted(array2) == sorted([i ** 2 for i in array1]))
+ 
+# Example usage:
+print(comp([1, 2, 3, 4], [1, 4, 9, 16]))
+ 
+ 
    
     if array1 is None and array2 is not None:  
         return False
       
      
-    if (sorted(array1) == sorted([i ** 2 for i in array2])) and (sorted(array2) == sorted([i ** 2 for i in array1])):  
+    if (sorted(array1) == sorted([i ** 2 for i in array2])) or (sorted(array2) == sorted([i ** 2 for i in array1])):  
         return True
       
     return False
   
- 
-comp([1,2,3,4], [1,4,9,16])
\ No newline at end of file
+lis1=eval(input("Enter list 1: "))
+lis2=eval(input("Enter list 2: "))
+print(comp(lis1,lis2))
+ 
\ No newline at end of file
diff --git a/FunProjects/rockPaperSiss.py b/FunProjects/rockPaperSiss.py
index 1adf465..a80a8f9 100644
--- a/FunProjects/rockPaperSiss.py
+++ b/FunProjects/rockPaperSiss.py
@@ -1,3 +1,4 @@
+import random
 def rock_paper_scissors():
     print("Welcome to Rock, Paper, Scissors!")
     choices = ["rock", "paper", "scissors"]
@@ -38,4 +39,4 @@ def main():
         else:
             print("Invalid choice! Please try again.")
 
-main()
+main()
\ No newline at end of file
diff --git a/FunProjects/snakeLadder.py b/FunProjects/snakeLadder.py
index 6363cfa..445fcc0 100644
--- a/FunProjects/snakeLadder.py
+++ b/FunProjects/snakeLadder.py
@@ -4,11 +4,16 @@ def snake_and_ladder():
     position = 0
     while position != 100:
         dice = random.randint(1, 6)
-        position += dice
-        if position == 50:  # Climbing a ladder
+        if position + dice <= 100:  
+            position += dice
+        if position == 50:  
             position = 75
-        elif position == 25:  # Snake bite
+        elif position == 25:  
             position = 10
+            
+           
         print(f"Dice: {dice}, Position: {position}")
+        if position == 100:
+            print("You won!!")
 
 snake_and_ladder()
\ No newline at end of file
diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index 759376b..a48fece 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -2,15 +2,9 @@
 
 num = int(input("Enter a number: "))
  
+ 
 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 Even".format(num))
-
-   
- 
+  
\ No newline at end of file
diff --git a/problems/easy/easy_q10.py b/problems/easy/easy_q10.py
index 36e50ef..3ad440b 100644
--- a/problems/easy/easy_q10.py
+++ b/problems/easy/easy_q10.py
@@ -1,6 +1,14 @@
 # Check Palindrome Number: Use a do-while loop to determine if a given number is a palindrome
 def is_palindrome(num):
     original = num
+ 
+    reverse = 0
+    while num != 0:
+        reverse = reverse * 10 + num % 10
+        num //= 10
+    
+    return reverse == original
+ 
     reverse = ''
     while num != 0 :
         reverse += str(num % 10)
@@ -9,6 +17,7 @@ def is_palindrome(num):
         return "It is a Palindrome"
     else:
         return "It is not a Palindrome"
+ 
 if __name__ == "__main__":
     nums = int(input("Enter the Number: "))
     res = is_palindrome(nums)
diff --git a/problems/easy/easy_q11.py b/problems/easy/easy_q11.py
index 3e01c4f..182540b 100644
--- a/problems/easy/easy_q11.py
+++ b/problems/easy/easy_q11.py
@@ -11,10 +11,19 @@ def day_of_week(day):
     }
     return switch[day]   
 if __name__ == "__main__":
+ 
+    day=int(input("Enter the number : "))
+    if 0<day<8:
+        xcd = day_of_week(day)
+        print(xcd)
+    else:
+        print("Enter a valid input :")
+ 
     day=int(input("Enter The Number:"))
     if str(day) in "1234567":
         xcd = day_of_week(day)
         print(xcd)
     else:
         print("Enter Valid Input")
+ 
     
diff --git a/problems/easy/easy_q12.py b/problems/easy/easy_q12.py
index 5ab0fca..1a02b99 100644
--- a/problems/easy/easy_q12.py
+++ b/problems/easy/easy_q12.py
@@ -6,11 +6,14 @@ def calculator(a, b, operator):
         '*': a * b,   
         '/': a / b    
     }
-    return switch.get(operator, "Invalid Operator")
+    return switch.get(operator , "Invalid Operator")
 
 if __name__ == "__main__":
     n1 = int(input("Enter the Number 1 :"))
     n2 = int(input("Enter the Number 2 :"))
     opr  = input("Enter the Operator :")
     result = calculator(n1,n2,opr)
-    print(result)
\ No newline at end of file
+     print(result)
+    
+     print(result)
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index f459081..ff47888 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -2,32 +2,17 @@
 def largest_of_two(a, b):
     if a > b:
  
-        print(num1,"larger")
-    else:
-        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)
-    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
  
+        print(num1,"larger")
+    else:
+        print(num2,"larger")
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index d52aa7b..ef1d387 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,6 +1,7 @@
 # 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:
        if year % 100 == 0:
            return "Not a Leap Year"
@@ -9,11 +10,16 @@ def is_leap_year(year):
        return "Leap Year"
  
     if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
+ 
+ 
         return "Leap Year"   
     return "Not a Leap Year"
  
-if __name__ == "__main__":
-    
-    num = int(input("Enter the number :"))
-    res = is_leap_year(num)
-    print(res)
\ No newline at end of file
+        return " Leap Year"   
+    else:
+        return "not a Leap Year"
+ 
+ 
+        return "Leap Year"   
+    return "Not a Leap Year"
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index ec24801..b99ff2e 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,24 +1,22 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
+ 
+num = int(input("Enter the Number : "))
+ 
 def check_number(num):
+ 
     if num < 0:
         print("Negative")  
     elif num > 0:
         print("Positive")  
     else:
-  keerthi
+ 
         print("Number is Zero")   
-        
+ 
 if __name__ == "__main__":
     num = int(input("Enter the Number : "))
     check_number(num)
  
         print("Number is zero")   
-        
-if __name__ == "__main__":
-    num = int(input("Enter the Number : "))
-    res = check_number(num)
-    print(res)
- main
-    
+ 
     
     
diff --git a/problems/easy/easy_q5.py b/problems/easy/easy_q5.py
index 01db7d7..7ada51f 100644
--- a/problems/easy/easy_q5.py
+++ b/problems/easy/easy_q5.py
@@ -8,9 +8,18 @@ def grade_system(marks):
     elif marks >= 70:
         return "C"   
     else:
+ 
         return "F"  
     
+if __name__ == "__main__":
+      mark = int(input("Enter the Mark : "))
+      res = grade_system(mark)
+ 
+ 
+        return "D"  
+ 
+    
 if __name__ == "__main__":
       num = int(input("Enter the Mark : "))
       res = grade_system(num)
-      print(res)
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q6.py b/problems/easy/easy_q6.py
index 5e6ebd5..cc53209 100644
--- a/problems/easy/easy_q6.py
+++ b/problems/easy/easy_q6.py
@@ -3,8 +3,12 @@ def print_numbers(n):
     i = 1
     while i <= n:
         print(i)
-        i += 1   
-
+ 
 if __name__ == "__main__":
+     num = int(input("Enter the Number "))
+    print_numbers(num)
+    
+ 
     num = int(input("Enter the Number :"))
     print_numbers(num)
+ 
diff --git a/problems/easy/easy_q7.py b/problems/easy/easy_q7.py
index 794c6a6..eccd1cd 100644
--- a/problems/easy/easy_q7.py
+++ b/problems/easy/easy_q7.py
@@ -1,12 +1,26 @@
 # Sum of Digits: Write a program to calculate the sum of digits of a number using a while loop.
-def sum_of_digits(num):
+def  sum_of_digits(num):
     total = 0
     while num > 0:
         total += num % 10
+ 
+        num = num // 10  
+ 
+ 
+        num = num // 10  
+ 
         num //= 10  
+ 
+ 
     return total
 
 if __name__ == "__main__":
     num = int(input("Enter the Number : "))
+ 
     res=sum_of_digits(num)
     print(res)
+ 
+    
+ 
+    
+ 
diff --git a/problems/easy/easy_q9.py b/problems/easy/easy_q9.py
index 43fc763..df9a503 100644
--- a/problems/easy/easy_q9.py
+++ b/problems/easy/easy_q9.py
@@ -8,6 +8,9 @@ def factorial(n):
 
 if __name__ == "__main__":
     num = int(input("Enter the Number :"))
-    res=factorial(num)
-    print(res)
+ 
+    print(factorial(num))
     
+     res=factorial(num)
+    print(res)
+     
diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index ecb1be8..99456d9 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -5,27 +5,24 @@
 def math_operations_menu(choice):
     a, b = map(int, input("Enter two numbers(separated by commas): ").split(sep=","))
 
+ 
+    a=int(input("Enter a num1:"))
+    b=int(input("Enter a num2:"))
+ 
+
+ 
     if choice == 1:
-        print(f"Subtraction of {a} and {b}:{a - b}")   
+        print("Addition:", a + b) 
     elif choice == 2:
-        print(f"Addition of {a} and {b}:{a + b}")   
+        print("Subtraction:", a - b)   
     elif choice == 3:
-        print(f"Division of {a} and {b}:{a / b}")   
+        print("Multiplication:", a * b)
     elif choice == 4:
-        print(f"Multiplication of {a} and {b}:{a * b}")   
+        print("Division:", 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}")
+        print("Modulo:", a // b)   
     else:
-        print("Invalid option!!!")
-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("Invalid option")
+ 
+math_operations_menu()
+  
\ No newline at end of file
diff --git a/problems/medium/m2.py b/problems/medium/m2.py
index 3829f69..56d86bd 100644
--- a/problems/medium/m2.py
+++ b/problems/medium/m2.py
@@ -8,15 +8,34 @@ def array_operations_menu():
     arr = list(map(int, input("Enter array elements separated by space: ").split()))
 
     if choice == 1:
+ 
+        print("Sum:", sum(arr) )   
+ 
         print("Sum:", sum(arr))   
+ 
     elif choice == 2:
         print("Largest Element:", max(arr))  
     elif choice == 3:
         print("Smallest Element:", min(arr))   
     elif choice == 4:
+ 
+        print("Sorted Array:",sorted.arr) 
+    else:
+        print("Invalid option")
+
+array_operations_menu()
+ 
         arr.sort()
+ 
+        print("Sorted Array:", arr) 
+    else:
+        print("Invalid option")
+array_operations_menu()
+ 
         print("Sorted Array:",arr) 
     else:
         print("Invalid option")
 array_operations_menu()
        
+ 
+ 
diff --git a/problems/medium/m3.py b/problems/medium/m3.py
index b0e1d2c..5d5d7b8 100644
--- a/problems/medium/m3.py
+++ b/problems/medium/m3.py
@@ -12,18 +12,19 @@ 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: ")
-        print("Updated String:", s)   
+        print("Updated String:", s.replace(old,new))   
     else:
         print("Invalid option")
+string_manipulation_menu()
\ No newline at end of file
diff --git a/problems/medium/m4.py b/problems/medium/m4.py
index 81f11f0..5a102af 100644
--- a/problems/medium/m4.py
+++ b/problems/medium/m4.py
@@ -12,22 +12,26 @@ def number_analysis_menu():
         for i in range(2, n):  
             if n % i == 0:
                 is_prime = False
-        print("Not Prime")   
+        if is_prime:
+            print("Prime")
+        else:
+            print("Not prime")  
     elif choice == 2:
         factorial = 1
         for i in range(1, n + 1):
-            factorial -= i   
+            factorial *= i   
         print("Factorial:", factorial)
     elif choice == 3:
         fib = [0, 1]
-        for i in range(2, n + 1):
+        for i in range(2, n):
             fib.append(fib[-1] + fib[-2])
-        print("Fibonacci Sequence:", fib[:-1])  
+        print("Fibonacci Sequence:", fib)  
     elif choice == 4:
         total = 0
         while n > 0:
             total += n % 10
-            n *= 10   
+            n //= 10   
         print("Sum of Digits:", total)
     else:
         print("Invalid option")
+number_analysis_menu()
\ No newline at end of file