Chocolate Distribution Problem

There are M chocolate packets each packet can have variable number of chocolates in each packet. There are N students (N < M). Distribute chocolate packets to student such that

a) Each student should get 1 packet

b) The difference between the number of chocolates in packet with maximum chocolates and packet with minimum chocolates given to the students should be minimum.

M = 1, 3, 4, 6, 5 (5 packets with specified number of chocolates in them)

N = 3

Output = 3, 5.

import java.util.Arrays;

public class Chocalate {

     /**

      * @param chocalates

      * @param std

      * @return min difference

      */

     private static int getChocaltes(int[] chocalates, int std) {

           Arrays.sort(chocalates);

          

           int min = Integer.MAX_VALUE;

          

           for(int i=0;i<chocalates.length-std+1;i++) {

                min = Math.min(chocalates[i+std-1]-chocalates[i], min);

           }

           return min;

     }

    

     public static void main(String[] args) {

           int[] chocalates = {1, 3, 4, 6, 5};

           int students = 3;

          

           int minDiff = getChocaltes(chocalates, students);

           System.out.println("Minimum difference is # "+ minDiff);

     }

}