Class Solution
java.lang.Object
g1001_1100.s1072_flip_columns_for_maximum_number_of_equal_rows.Solution
public class Solution
extends java.lang.Object
1072 - Flip Columns For Maximum Number of Equal Rows.
Medium
You are given an m x n
binary matrix matrix
.
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 0
to 1
or vice versa).
Return the maximum number of rows that have all values equal after some number of flips.
Example 1:
Input: matrix = [[0,1],[1,1]]
Output: 1
Explanation: After flipping no values, 1 row has all values equal.
Example 2:
Input: matrix = [[0,1],[1,0]]
Output: 2
Explanation: After flipping values in the first column, both rows have equal values.
Example 3:
Input: matrix = [[0,0,0],[0,0,1],[1,1,0]]
Output: 2
Explanation: After flipping values in the first two columns, the last two rows have equal values.
Constraints:
m == matrix.length
n == matrix[i].length
1 <= m, n <= 300
matrix[i][j]
is either0
or1
.
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Constructor Summary
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Method Summary
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Details
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Solution
public Solution()
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Method Details
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maxEqualRowsAfterFlips
public int maxEqualRowsAfterFlips(int[][] matrix)
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