Package g1301_1400.s1351_count_negative_numbers_in_a_sorted_matrix

Class Solution

java.lang.Object

g1301_1400.s1351_count_negative_numbers_in_a_sorted_matrix.Solution

public class Solution
extends Object

1351 - Count Negative Numbers in a Sorted Matrix\. Easy Given a `m x n` matrix `grid` which is sorted in non-increasing order both row-wise and column-wise, return _the number of **negative** numbers in_ `grid`. **Example 1:** **Input:** grid = \[\[4,3,2,-1],[3,2,1,-1],[1,1,-1,-2],[-1,-1,-2,-3]] **Output:** 8 **Explanation:** There are 8 negatives number in the matrix. **Example 2:** **Input:** grid = \[\[3,2],[1,0]] **Output:** 0 **Constraints:** * `m == grid.length` * `n == grid[i].length` * `1 <= m, n <= 100` * `-100 <= grid[i][j] <= 100` **Follow up:** Could you find an `O(n + m)` solution?

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	countNegatives(int[][] grid)

Methods inherited from class java.lang.Object

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

Constructor Details

Solution

public Solution()

Method Details

countNegatives

public int countNegatives(int[][] grid)