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Problem
Given an array of integers, find and print the duplicate values (if any) using pointer arithmetic. Assume values are between 0 and 100.
Input format
Input
input.txt
- First line: integer N (1 ≤ N ≤ 100) - Second line: N space-separated integers
Output format
Output
output.txt
- Duplicates in any order, space-separated. If none, print "NONE"
Example
input
6 1 2 3 2 4 1
output
1 2
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Sample cases (from the problem)
Sample Case 1
Input
6 1 2 3 2 4 1
Expected output
1 2
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