Leetcode Problem 2397. Maximum Rows Covered by Columns

2397. Maximum Rows Covered by Columns

Leetcode Solutions

Initialize maxCoveredRows to 0 to keep track of the maximum number of rows covered.
Iterate over all possible combinations of columns using bitmasks. The range of iteration is from 0 to (1 << n) - 1, where n is the number of columns.
For each bitmask, count the number of set bits. If the count is not equal to numSelect, skip to the next bitmask.
For each valid bitmask, iterate over all rows and check if the row is covered by the selected columns.
If a row is covered, increment a temporary count for covered rows.
Update maxCoveredRows with the maximum of its current value and the temporary count.
Return maxCoveredRows as the final result.

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