Problem
Given a matrix and two row indices i, j, swap those two rows.
Input format
Input
input.txt
- First line: R C - Next R lines: C integers - Last line: two integers i j (0 ≤ i, j < R)
Output format
Output
output.txt
- Matrix with rows i and j swapped
Example
input
3 3 1 2 3 4 5 6 7 8 9 0 2
output
7 8 9 4 5 6 1 2 3
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Sample cases (from the problem)
Sample Case 1
Input
3 3 1 2 3 4 5 6 7 8 9 0 2
Expected output
7 8 9 4 5 6 1 2 3
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