题目:
给定M×N矩阵,每一行、每一列都按升序排列,请编写代码找出某元素。
示例:
现有矩阵 matrix 如下:
[
[1, 4, 7, 11, 15],
[2, 5, 8, 12, 19],
[3, 6, 9, 16, 22],
[10, 13, 14, 17, 24],
[18, 21, 23, 26, 30]
]
给定 target = 5,返回 true。
给定 target = 20,返回 false。
代码实现:
class Solution {标签:yyds,false,target,int,金典,矩阵,return,LeetCode,matrix From: https://blog.51cto.com/u_13321676/6064493
public boolean searchMatrix(int[][] matrix, int target) {
if (matrix.length == 0 || matrix[0].length == 0) {
return false;
}
for (int[] row : matrix) {
for (int element : row) {
if (element == target) {
return true;
}
}
}
return false;
}
}