题目链接：73. 矩阵置零 - 力扣（LeetCode）
用两个数组标记要变成0的行和列索引
代码语言：javascript复制class Solution {
public:
void setZeroes(vector<vector<int> > &matrix) {
vector<bool> row(matrix.size(), false), column(matrix[0].size(), false);
for (int i = 0; i < matrix.size(); i)
for (int j = 0; j < matrix[0].size(); j)
if (matrix[i][j] == 0)
row[i] = column[j] = true;
for (int i = 0; i < matrix.size(); i)
for (int j = 0; j < matrix[0].size(); j)
if (row[i] || column[j])
matrix[i][j] = 0;
}
};
