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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int N;
  6. 	cin >> N;
  7. 	map<string, int> mp;
  8. 	string arr[N];
  9. 	for(int i=0;i<N;i++){
  10. 		cin >> arr[i];
  11. 	}
  12. 	for(int i=0;i<N;i++){
  13. 		for(int j=0;j<N;j++){
  14. 			//mp[arr[i]+arr[j]]=1;
  15. 			if(i!=j){
  16. 				mp[arr[i]+arr[j]]=1;
  17. 			}
  18. 		}
  19. 	}
  20. 	cout << mp.size() << '\n';
  21. }
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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10
armiearggc
ukupaunpiy
cogzmjmiob
rtwbvmtruq
qapfzsitbl
vhkihnipny
ybonzypnsn
esxvgoudra
usngxmaqpt
yfseonwhgp
stdout
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90
https://ideone.com/FKV4sM
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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