74. 搜索二维矩阵

74. 搜索二维矩阵 - 力扣（LeetCode）

public class LeetCode74 {public boolean searchMatrix(int[][] matrix, int target) {int m = matrix.length;int n = matrix[0].length;//  暴力
//        for (int i = 0; i < m; i++){
//            for (int j = 0; j < n; j++){
//                if (matrix[i][j] == target) return true;
//            }
//        }
//        return false;//  二分int left = 0, right = m * n - 1;while (left <= right){int mid = (left + right) / 2;int x = mid / n;int y = mid % n;if (matrix[x][y] == target) return true;else if (matrix[x][y] > target) right = mid - 1;else left = mid + 1;}return false;}
}