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  1. #include <iostream>
  2. using namespace std;
  3. #include <bits/stdc++.h>
  4. #include<vector>
  5.  
  6. int main() {
  7. 	// your code goes here
  8. 	int arr[]={1,2,3};
  9. 	int n=3;
  10. 	int k=2;
  11. 	int count=0,diff=0,i=0,j=0;
  12. 	sort(arr,arr+n);
  13. 	while(i<n && j<n)
  14. 	 {
  15. 	   	diff=arr[j]-arr[i];
  16. 	   	while(diff>k)
  17. 	   	 {
  18. 	   	 	i++;
  19. 	   	 	diff=arr[j]-arr[i];
  20.  
  21. 	   	 }
  22. 	   	 //if(sum<=k)
  23. 	   	    count+=(j-i+1);
  24. 	   	 j++;   
  25. 	 }
  26.  
  27. 	 cout<<count-n;
  28.  
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 5288KB
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https://ideone.com/8FpM8g
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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