src/main/java/com/fishercoder/solutions/_1710.java

package com.fishercoder.solutions;

import java.util.Arrays;

public class _1710 {
    public static class Solution1 {
        public int maximumUnits(int[][] boxTypes, int truckSize) {
            Arrays.sort(boxTypes, (a, b) -> b[1] - a[1]);
            int totalUnits = 0;
            int loadedBoxes = 0;
            for (int i = 0; i < boxTypes.length; i++) {
                int number = boxTypes[i][0];
                while (loadedBoxes < truckSize && number > 0) {
                    totalUnits += boxTypes[i][1];
                    number--;
                    loadedBoxes++;
                }
            }
            return totalUnits;
        }
    }
}