Leetcode Problem 363. Max Sum of Rectangle No Larger Than K

363. Max Sum of Rectangle No Larger Than K

Leetcode Solutions

Define a function to find the maximum sub-array sum <= k for a 1D array using a sorted container.
Initialize a global variable to store the maximum sum found so far.
Iterate over all possible combinations of rows in the matrix to form a 1D array.
For each 1D array, calculate the prefix sums and use the sorted container to find the maximum sub-array sum <= k.
Update the global maximum sum if a larger sum is found.
Return the global maximum sum after considering all 1D arrays.

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