Improve python programming/problem solving skill

Sites that will improve your python programming skill.

• https://www.hackerrank.com/domains/python/
• http://community.topcoder.com/tc

I will update this list regularly & open to any suggestion,

Problem solving using python : Candy I

Candy I: https://www.spoj.com/problems/CANDY/
All source code available on github

n=input()
while n != -1:
    a=[]
    s =0
    for i in range(0,n):
        d=input()
        s  += d
        a.append(d)
    avg = int(s/n)
    if avg*n != s:
        print -1
    else:
        r=0
        for i in range(0,n):
            if a[i]<avg:
                r += (avg - a[i])
        print r
    n = input()

Problem solving using python: Count on Cantor

Count on Cantor: https://www.spoj.com/problems/CANTON/
All source code available on github

import math

def solution(n):
    t = float(math.sqrt(1+8*(n-1)))
    k = int((t+1)/2)
    a = int((k*(k-1))/2)
    b = n - a
    if k%2==0:
        return b,(k+1)-b
    return (k+1)-b, b

case = input()
while case>0:
    n=input()
    case = case -1
    a, b = solution(n)
    print "TERM %d IS %d/%d" % (n,a,b)

Problem solving using python: Adding Reversed Numbers

Adding Reversed Numbers: http://www.spoj.com/problems/ADDREV/

All source code available on github

# python 2.7
n=input()
while n>0:
    a, b = [int(x) for x in raw_input().split()]
    sa, sb=str(a)[::-1],str(b)[::-1]
    sr =str( int(sa)+int(sb) )
    sr = sr[::-1]
    print int(sr)
    n=n-1

Problem solving using python: Small factorials

Small factorials: https://www.spoj.pl/problems/FCTRL2/

All source code available on github

# python 2.7
def fact(n):
    if n==0:
        return 1
    return n*fact(n-1)

n = input()
while n>0:
    n=n-1
    k=input()
    print fact(k)

Problem solving using python

Currently I am starting to solve online programming problems using python. Spoj support python as well as other's language. Here I post some of my solved problems code of Spoj site, so that you can find how to solve programming problems in python. Lets have fun ....
Life, the Universe, and Everything : https://www.spoj.pl/problems/TEST/
All source code available on github

# python 2.7
num=input()
while num!=42:
    print num
    num=input()