Problem
Rearrange an array so that all negative numbers come before all positive numbers using pointers. Order does not matter.
Input format
Input
input.txt
- First line: integer N (1 ≤ N ≤ 100) - Second line: N space-separated integers
Output format
Output
output.txt
- All negative numbers followed by all positive numbers
Example
input
6 1 -2 3 -4 -1 5
output
-2 -4 -1 1 3 5
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Sample cases (from the problem)
Sample Case 1
Input
6 1 -2 3 -4 -1 5
Expected output
-2 -4 -1 1 3 5
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