< Summary

Information

Class:	LeetCode.Algorithms.CountNegativeNumbersInSortedMatrix.CountNegativeNumbersInSortedMatrixStaircase
Assembly:	LeetCode
File(s):	D:\a\LeetCode-CS\LeetCode-CS\source\LeetCode\Algorithms\CountNegativeNumbersInSortedMatrix\CountNegativeNumbersInSortedMatrixStaircase.cs

Line coverage

100%

Covered lines:	19
Uncovered lines:	0
Coverable lines:	19
Total lines:	49
Line coverage:	100%

Branch coverage

100%

Covered branches:	6
Total branches:	6
Branch coverage:	100%

Method coverage

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Metrics

Method	Branch coverage	Crap Score	Cyclomatic complexity	Line coverage
CountNegatives(...)	100%	6	6	100%

File(s)

D:\a\LeetCode-CS\LeetCode-CS\source\LeetCode\Algorithms\CountNegativeNumbersInSortedMatrix\CountNegativeNumbersInSortedMatrixStaircase.cs

#	Line	Line coverage
	`1`	`// --------------------------------------------------------------------------------`
	`2`	`// Copyright (C) 2026 Eugene Eremeev (also known as Yevhenii Yeriemeieiv).`
	`3`	`// All Rights Reserved.`
	`4`	`// --------------------------------------------------------------------------------`
	`5`	`// This software is the confidential and proprietary information of Eugene Eremeev`
	`6`	`// (also known as Yevhenii Yeriemeieiv) ("Confidential Information"). You shall not`
	`7`	`// disclose such Confidential Information and shall use it only in accordance with`
	`8`	`// the terms of the license agreement you entered into with Eugene Eremeev (also`
	`9`	`// known as Yevhenii Yeriemeieiv).`
	`10`	`// --------------------------------------------------------------------------------`
	`11`
	`12`	`namespace LeetCode.Algorithms.CountNegativeNumbersInSortedMatrix;`
	`13`
	`14`	`/// <inheritdoc />`
	`15`	`public sealed class CountNegativeNumbersInSortedMatrixStaircase : ICountNegativeNumbersInSortedMatrix`
	`16`	`{`
	`17`	`/// <summary>`
	`18`	`/// Time complexity - O(n + m)`
	`19`	`/// Space complexity - O(1)`
	`20`	`/// </summary>`
	`21`	`/// <param name="grid"></param>`
	`22`	`/// <returns></returns>`
	`23`	`public int CountNegatives(int[][] grid)`
2	`24`	`{`
2	`25`	`var count = 0;`
	`26`
2	`27`	`var m = grid.Length;`
2	`28`	`var n = grid[0].Length;`
	`29`
2	`30`	`var i = 0;`
2	`31`	`var j = n - 1;`
	`32`
11	`33`	`while (i < m && j >= 0)`
9	`34`	`{`
9	`35`	`if (grid[i][j] < 0)`
4	`36`	`{`
4	`37`	`count += m - i;`
	`38`
4	`39`	`j--;`
4	`40`	`}`
	`41`	`else`
5	`42`	`{`
5	`43`	`i++;`
5	`44`	`}`
9	`45`	`}`
	`46`
2	`47`	`return count;`
2	`48`	`}`
	`49`	`}`

< Summary

Metrics

File(s)

D:\a\LeetCode-CS\LeetCode-CS\source\LeetCode\Algorithms\CountNegativeNumbersInSortedMatrix\CountNegativeNumbersInSortedMatrixStaircase.cs

Methods/Properties