Package g1001_1100.s1072_flip_columns_for_maximum_number_of_equal_rows

Class Solution

java.lang.Object

g1001_1100.s1072_flip_columns_for_maximum_number_of_equal_rows.Solution

public class Solution
extends Object

1072 - Flip Columns For Maximum Number of Equal Rows.<p>Medium</p> <p>You are given an <code>m x n</code> binary matrix <code>matrix</code>.</p> <p>You can choose any number of columns in the matrix and flip every cell in that column (i.e., Change the value of the cell from <code>0</code> to <code>1</code> or vice versa).</p> <p>Return <em>the maximum number of rows that have all values equal after some number of flips</em>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> matrix = [[0,1],[1,1]]</p> <p><strong>Output:</strong> 1</p> <p><strong>Explanation:</strong> After flipping no values, 1 row has all values equal.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> matrix = [[0,1],[1,0]]</p> <p><strong>Output:</strong> 2</p> <p><strong>Explanation:</strong> After flipping values in the first column, both rows have equal values.</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> matrix = [[0,0,0],[0,0,1],[1,1,0]]</p> <p><strong>Output:</strong> 2</p> <p><strong>Explanation:</strong> After flipping values in the first two columns, the last two rows have equal values.</p> <p><strong>Constraints:</strong></p> <ul> <li><code>m == matrix.length</code></li> <li><code>n == matrix[i].length</code></li> <li><code>1 <= m, n <= 300</code></li> <li><code>matrix[i][j]</code> is either <code>0</code> or <code>1</code>.</li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	maxEqualRowsAfterFlips(int[][] matrix)

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

maxEqualRowsAfterFlips

public int maxEqualRowsAfterFlips(int[][] matrix)