Find duplicates
EASYGiven an input string with numbers separated by a single space.
Find numbers that occur 2 or more times. Print it separated by a single space in any order.
Example #1
Input
3 2 5 2 1 3
Output
2 3
Given an input string with numbers separated by a single space.
Find numbers that occur 2 or more times. Print it separated by a single space in any order.
3 2 5 2 1 3
2 3