faceprep

Author: Kondareddy1209

arm_strong.py

@@ -0,0 +1,11 @@
+n=153
+sum=0
+temp=n
+while n>0:
+    num=n%10
+    sum+=num**3
+    n=n//10
+if sum==temp:
+    print(temp,"is an armstrong number")
+else:
+    print(temp,"is not an armstrong number")

factorail_using_recursion.py

@@ -1,7 +1,19 @@
-def factorail(n):
-    if n==0 or n==1:
-        return 1
-    else:
-        return n*factorail(n-1)
+# def factorail(n):
+#     if n==0 or n==1:
+#         return 1
+#     else:
+#         return n*factorail(n-1)
+# n=int(input("Enter a number : "))
+# print("factorail of n is :", factorail(n))
+
+
 n=int(input("Enter a number : "))
-print("factorail of n is :", factorail(n))
+fact=1
+if n<0:
+    print("Factorial does not exist for negative numbers")
+elif n==0 or n==1:
+    print("Factorial of",n,"is 1")
+else:
+    for i in range(1,n+1):
+        fact=fact*i
+    print("Factorial of",n,"is",fact)

fibnocci.py

@@ -3,6 +3,4 @@
 b=1
 for i in range(n):
     print(a)
-    c=a+b
-    a=b
-    b=c
+    a,b=b,a+b

fibnocci_using_recursion.py

@@ -0,0 +1,8 @@
+def fibn(n):
+    if n<=1:
+        return n
+    else:
+        return fibn(n-1)+fibn(n-2)
+n=int(input("Enter a number:"))
+for i in range(n):
+    print(fibn(i))

reverse_using_recursion.py

@@ -0,0 +1,10 @@
+def recur(n,rev=0):
+    if n==0:
+        return rev
+    else:
+        num=n%10
+        rev=rev*10+num
+        n=n//10
+        return recur(n,rev)
+n=int(input("Enter a number:"))
+print("The reverse of the number is:",recur(n))

tempCodeRunnerFile.py

@@ -1,9 +1,10 @@
-def palin(n):
-    if len(n)<=1:
-        return True
-    if n[0]!=n[-1]:
-        return False
+def recur(n,rev=0):
+    if n==0:
+        return rev
     else:
-        return palin(n[1:-1])
-n=input("Enter a string:")
-print(palin(n))
+        num=n%10
+        rev=rev*10+num
+        n=n//10
+        return recur(n,rev)
+n=int(input("Enter a number:"))
+print("The reverse of the number is:",recur(n))