Package g0301_0400.s0363_max_sum_of_rectangle_no_larger_than_k

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    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

    • <code>-10<sup>5</sup><= k <= 10<sup>5</sup></code>

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

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Integer maxSumSubmatrix(Array<IntArray> matrix, Integer k)

      • Methods inherited from class java.lang.Object

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