Largest Values From Labels(LeetCode 1090):

Problem

You are given n item's value and label as two integer arrays values and labels. You are also given two integers numWanted and useLimit.

Your task is to find a subset of items with the maximum sum of their values such that:

  • The number of items is at most numWanted.
  • The number of items with the same label is at most useLimit.

Return the maximum sum.

 

Example 1:

Input: values = [5,4,3,2,1], labels = [1,1,2,2,3], numWanted = 3, useLimit = 1

Output: 9

Explanation:

The subset chosen is the first, third, and fifth items with the sum of values 5 + 3 + 1.

Example 2:

Input: values = [5,4,3,2,1], labels = [1,3,3,3,2], numWanted = 3, useLimit = 2

Output: 12

Explanation:

The subset chosen is the first, second, and third items with the sum of values 5 + 4 + 3.

Example 3:

Input: values = [9,8,8,7,6], labels = [0,0,0,1,1], numWanted = 3, useLimit = 1

Output: 16

Explanation:

The subset chosen is the first and fourth items with the sum of values 9 + 7.

 

Constraints:

  • n == values.length == labels.length
  • 1 <= n <= 2 * 104
  • 0 <= values[i], labels[i] <= 2 * 104
  • 1 <= numWanted, useLimit <= n