Program for Recursive Insertion Sort

def insertionSortRecursive(arr, n):

if n <= 1:

return

insertionSortRecursive(arr, n - 1)

last = arr[n - 1]

j = n - 2

while (j >= 0 and arr[j] > last):

arr[j + 1] = arr[j]

j = j - 1

arr[j + 1] = last

if __name__ == '__main__':

A = [-7, 11, 6, 0, -3, 5, 10, 2]

n = len(A)

insertionSortRecursive(A, n)

print(A)

Finding sum of digits of a number until sum becomes single digit

import math

def digSum( n):

sum = 0

while(n > 0 or sum > 9):

if(n == 0):

n = sum

sum = 0

sum += n % 10

n /= 10

return sum

n = 1234

print (digSum(n))