import java.util.Arrays;import java.util.Scanner;public class ZCO15002 {// Variation countpublic static void main(String[] args) {Scanner sc = new Scanner(System.in);int n = sc.nextInt();int k = sc.nextInt();int count = 0;int[] array = new int[n];for(int i=0;i<n;i++){array[i] = sc.nextInt();}Arrays.sort(array);for(int i = 0,j=1;i<n-1 && j<n;){if(array[j]-array[i]>=k){count = count + n - j;i++;}else{
Read more…