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- #include <iostream>
- #include<bits/stdc++.h>
- using namespace std;
- int main() {
- int n,k;
- cin>>n>>k;
- int arr[n];
- for(int i=0 ;i<n ;i++)
- {
- cin>>arr[i];
- }
- int c=0;
- for(int i =0 ; i<n ;i++)
- {
- for(int j =i+1 ;j<n; j++)
- {
- if ((arr[i]+arr[j]) <= k)
- c++;
- }
- }
- cout <<c;
- return 0;
- }
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