Code RoomMaximum sum rectangle bounded
HardPrep Room Coding #1413

Maximum sum rectangle bounded

CodingAlgorithms & data structuresSenior–Staff~45 min

Given an m x n integer matrix and an integer k, find the maximum sum of a rectangular submatrix such that the sum is no larger than k. It is guaranteed that at least one such submatrix exists. Return that maximum sum (which may be negative).

Implement
max_sum_submatrix(matrix: list[list[int]], k: int) → int
Examples
in[[[1,0,1],[0,-2,3]],2]out2
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 45 min
InputExpectedGot
[[[1,0,1],[0,-2,3]],2]2not run yetsample