Package g0301_0400.s0363_max_sum_of_rectangle_no_larger_than_k

Class Solution

java.lang.Object

g0301_0400.s0363_max_sum_of_rectangle_no_larger_than_k.Solution

public class Solution
extends Object

363 - Max Sum of Rectangle No Larger Than K.

Hard

Given an m x n matrix matrix and an integer k, return the max sum of a rectangle in the matrix such that its sum is no larger than k.

It is guaranteed that there will be a rectangle with a sum no larger than k.

Example 1:

Input: matrix = [[1,0,1],[0,-2,3]], k = 2

Output: 2

Explanation: Because the sum of the blue rectangle [[0, 1], [-2, 3]] is 2, and 2 is the max number no larger than k (k = 2).

Example 2:

Input: matrix = [[2,2,-1]], k = 3

Output: 3

Constraints:

• m == matrix.length
• n == matrix[i].length
• 1 <= m, n <= 100
• -100 <= matrix[i][j] <= 100
• -105 <= k <= 105

Follow up: What if the number of rows is much larger than the number of columns?

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	maxSumSubmatrix(int[][] matrix, int k)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

maxSumSubmatrix

public int maxSumSubmatrix(int[][] matrix,
                           int k)