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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. typedef long long int ll;
  4.  
  5. int main() {
  6.     ll n;
  7.     cin>>n;
  8.     ll k;cin>>k;
  9.     ll b[n];
  10.     for(ll i=0;i<n;i++){
  11.         cin>>b[i];
  12.     }ll count = 0 ;
  13.  
  14.  
  15.  
  16.     for(ll i=0;i<n;i++){
  17.  
  18.         for(ll j=i;j<n;j++){
  19.             ll d = abs(b[j] - b[i]);
  20.             if(d<=k){
  21.                 count++;
  22.             }
  23.         }
  24.     }
  25.     cout<<(count-n);
  26.     return 0;
  27. }//RRRRR
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/Pg82lH
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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