Package g3201_3300.s3240_minimum_number_of_flips_to_make_binary_grid_palindromic_ii

Class Solution

java.lang.Object

g3201_3300.s3240_minimum_number_of_flips_to_make_binary_grid_palindromic_ii.Solution

public class Solution
extends Object

3240 - Minimum Number of Flips to Make Binary Grid Palindromic II.

Medium

You are given an m x n binary matrix grid.

A row or column is considered palindromic if its values read the same forward and backward.

You can flip any number of cells in grid from 0 to 1, or from 1 to 0.

Return the minimum number of cells that need to be flipped to make all rows and columns palindromic , and the total number of 1’s in grid divisible by 4.

Example 1:

Input: grid = [[1,0,0],[0,1,0],[0,0,1]]

Output: 3

Explanation:

Example 2:

Input: grid = [[0,1],[0,1],[0,0]]

Output: 2

Explanation:

Example 3:

Input: grid = [[1],[1]]

Output: 2

Explanation:

Constraints:

• m == grid.length
• n == grid[i].length
• 1 <= m * n <= 2 * 105
• 0 <= grid[i][j] <= 1

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	minFlips(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

minFlips

public int minFlips(int[][] grid)