Answer to Question #265951 in Python for Sreedhar

Question

Given some space separated list of integers every element appears twice other than one element write a program to find the element which appeared only once

Answer 1

lst = [int(n) for n in input().split()]
while lst:
    n = lst.pop(0)
    if n in lst:
        lst.remove(n)
    else:
        print(n)
        break