Package g2301_2400.s2319_check_if_matrix_is_x_matrix

Class Solution

java.lang.Object

g2301_2400.s2319_check_if_matrix_is_x_matrix.Solution

public class Solution
extends Object

2319 - Check if Matrix Is X-Matrix\. Easy A square matrix is said to be an **X-Matrix** if **both** of the following conditions hold: 1. All the elements in the diagonals of the matrix are **non-zero**. 2. All other elements are 0. Given a 2D integer array `grid` of size `n x n` representing a square matrix, return `true` _if_ `grid` _is an X-Matrix_. Otherwise, return `false`. **Example 1:**  **Input:** grid = \[\[2,0,0,1],[0,3,1,0],[0,5,2,0],[4,0,0,2]] **Output:** true **Explanation:** Refer to the diagram above. An X-Matrix should have the green elements (diagonals) be non-zero and the red elements be 0. Thus, grid is an X-Matrix. **Example 2:**  **Input:** grid = \[\[5,7,0],[0,3,1],[0,5,0]] **Output:** false **Explanation:** Refer to the diagram above. An X-Matrix should have the green elements (diagonals) be non-zero and the red elements be 0. Thus, grid is not an X-Matrix. **Constraints:** * `n == grid.length == grid[i].length` * `3 <= n <= 100` * 0 <= grid[i][j] <= 105

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
boolean	checkXMatrix(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

checkXMatrix

public boolean checkXMatrix(int[][] grid)