Package g0001_0100.s0073_set_matrix_zeroes

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    73 - Set Matrix Zeroes.

    Medium

    Given an m x n integer matrix matrix, if an element is 0, set its entire row and column to 0's.

    You must do it in place.

    Example 1:

    Input: matrix = [1,1,1,1,0,1,1,1,1]

    Output: [1,0,1,0,0,0,1,0,1]

    Example 2:

    Input: matrix = [0,1,2,0,3,4,5,2,1,3,1,5]

    Output: [0,0,0,0,0,4,5,0,0,3,1,0]

    Constraints:

    • m == matrix.length

    • n == matrix[0].length

    • 1 <= m, n <= 200

    • <code>-2<sup>31</sup><= matrixj<= 2<sup>31</sup> - 1</code>

    Follow up:

    • A straightforward solution using O(mn) space is probably a bad idea.

    • A simple improvement uses O(m + n) space, but still not the best solution.

    • Could you devise a constant space solution?

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Unit setZeroes(Array<IntArray> matrix)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait