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Problem
Given an array of integers, rearrange it so that all even numbers come before all odd numbers. Use pointer arithmetic.
Input format
Input
input.txt
- First line: integer N (1 ≤ N ≤ 100) - Second line: N space-separated integers
Output format
Output
output.txt
- N space-separated integers: evens first, then odds (relative order doesn't matter)
Example
input
5 1 2 3 4 5
output
2 4 1 3 5
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Sample cases (from the problem)
Sample Case 1
Input
5 1 2 3 4 5
Expected output
2 4 1 3 5
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