week 3

alphabetical_order.py

@@ -0,0 +1,6 @@
+def alphabetical_order():
+ n=input("enter the words: ") 
+ l=n.split('-') 
+ l.sort() 
+ print('-'.join(l)) 
+alphabetical_order()

equal_reverse.py

@@ -0,0 +1,22 @@
+def isPalindrome(s):
+    return s == s[::-1]
+
+
+s = "madam"
+ans = isPalindrome(s)
+
+if ans:
+    print("Yes")
+else:
+    print("No")
+def isPalindrome(s):    
+    return m == m[::-1]
+
+
+m = "utrecht"
+ans = isPalindrome(m)
+
+if ans:
+    print("Yes")
+else:
+    print("No")

perfectnumbers.py

@@ -0,0 +1,24 @@
+from functools import reduce
+L=[]
+def isPerfect( n ):
+
+
+    sum = 1
+
+    i = 2
+    while i * i <= n:
+        if n % i == 0:
+            sum = sum + i + n/i
+        i += 1
+
+
+    return (True if sum == n and n!=1 else False)
+print("Below are all perfect numbers till 10000")
+n = 2
+for n in range (10000):
+    if isPerfect (n):
+        print(n , " is a perfect number")
+        L.append(n)
+print("Sum of perfect numbers:",reduce(lambda x,y:x+y,L))
+
+

reading_number.py

@@ -0,0 +1,9 @@
+def yazi(a):
+    birler=["","bir","iki","uc","dort","bes","alti","yedi","sekiz","dokuz"]
+    onlar=["","on","yirmi","otuz","kirk","elli","altmis","yetmis","seksen","doksan"]
+    bir=a%10
+    on=a//10
+    print(onlar[on],birler[bir])
+
+sayi=int(input("iki basamakli bir sayi giriniz"))
+yazi(sayi)

unique_list.py

@@ -0,0 +1,8 @@
+def unique_list(l):
+  x = []
+  for a in l:
+    if a not in x:
+      x.append(a)
+  return x
+
+print(unique_list([1,2,3,3,3,3,4,5]))