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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int N;
  6. 	bool ans = false;
  7. 	cin >> N;
  8. 	vector<int>A(109);
  9. 	for(int i=1; i<=N; i++){
  10. 		cin >> A[i];
  11. 	}
  12. 	for(int i=1; i<=N; i++){
  13. 		for(int j=i+1; j<=N; j++){
  14. 			for(int k=j+1; k<=N; k++){
  15. 				if(A[i]+A[j]+A[k]==1000){
  16. 					ans = true;
  17. 					break;
  18. 				}
  19. 			}
  20. 		}
  21. 	}
  22. 	if(ans){
  23. 		cout << "Yes";
  24. 	}else{
  25. 		cout << "No";
  26. 	}
  27. 	// your code goes here
  28. 	return 0;
  29. }
Success #stdin #stdout 0.01s 5296KB
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Yes
https://ideone.com/Rna92M
language:
C++ (gcc 8.3)
created:
54 minutes ago
visibility:
public

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