Zero Matrix HARD Arrays 50 XP 0 solved
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Problem

If any cell of the matrix is 0, set its entire row and column to 0. Do this in-place.

Input format

Input input.txt

- First line: R and C (1 ≤ R, C ≤ 100) - Next R lines: C integers

Output format

Output output.txt

- Transformed matrix

Example

input
3 3
1 2 3
4 0 6
7 8 9
output
1 0 3
0 0 0
7 0 9

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