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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int tinh(int a[], int n, int k) { 
  5.     int res = 0; 
  6.     for (int i = 0; i < n; i++)  
  7.       for (int j=i+1; j<n; j++) 
  8.          if (abs(a[j] - a[i]) < k)  
  9.             res++; 
  10.  
  11.     return res; 
  12. } 
  13. int main() {
  14.     int t; cin >> t;
  15.     while(t--) {
  16.         int n, k; cin >> n >> k; int a[n];
  17.         for(int i=0; i<n; i++) cin >> a[i];
  18.         cout << tinh(a,n,k) << endl;
  19.     }
  20.     return 0;
  21. }
Success #stdin #stdout 0s 4352KB
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https://ideone.com/jJqbbE
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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