Package g2301_2400.s2352_equal_row_and_column_pairs

Class Solution

java.lang.Object

g2301_2400.s2352_equal_row_and_column_pairs.Solution

public class Solution
extends Object

2352 - Equal Row and Column Pairs\. Medium Given a **0-indexed** `n x n` integer matrix `grid`, _return the number of pairs_ (Ri, Cj) _such that row_ Ri _and column_ Cj _are equal_. A row and column pair is considered equal if they contain the same elements in the same order (i.e. an equal array). **Example 1:**  **Input:** grid = \[\[3,2,1],[1,7,6],[2,7,7]] **Output:** 1 **Explanation:** There is 1 equal row and column pair: - (Row 2, Column 1): [2,7,7] **Example 2:**  **Input:** grid = \[\[3,1,2,2],[1,4,4,5],[2,4,2,2],[2,4,2,2]] **Output:** 3 **Explanation:** There are 3 equal row and column pairs: - (Row 0, Column 0): [3,1,2,2] - (Row 2, Column 2): [2,4,2,2] - (Row 3, Column 2): [2,4,2,2] **Constraints:** * `n == grid.length == grid[i].length` * `1 <= n <= 200` * 1 <= grid[i][j] <= 105

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	equalPairs(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

equalPairs

public int equalPairs(int[][] grid)