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  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. #define fo(i,start,end) for(int i=start;i<end;i++)
  4. using namespace std;
  5.  
  6. int main() {
  7. 	// your code goes here
  8. 	int arr[] = {3,2,1,2,5};
  9. 	int k = 4;
  10. 	int n = 4;
  11. 	fo(i,0,n){
  12. 		fo(j,i+1,n){
  13. 			if(arr[i]+arr[j] == k){
  14. 				cout<<"Pairs are: {"<<arr[i]<<","<<arr[j]<<"}"<<endl;
  15. 				return 0;
  16. 			}
  17. 		}
  18. 	}
  19. 	cout<<"No such pair found in the array"<<endl;
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 5320KB
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Standard input is empty
stdout
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Pairs are: {3,1}
https://ideone.com/3OhemT
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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