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  1. #include <iostream>
  2. #include <algorithm>
  3. using namespace std;
  4.  
  5. struct data {
  6. 	string a;
  7. };
  8.  
  9. int cmp (data a, data b) {
  10. 	if ((a.a+b.a)<(b.a+a.a)) return 1;
  11. 	else return 0;
  12. }
  13.  
  14. main () {
  15. 	int t;
  16. 	cin>>t;
  17.  
  18. 	int m;
  19. 	struct data ma[15];
  20. 	for (int i=1; i<=t; i++) {
  21. 		cin>>m;
  22. 		for (int j=1; j<=m; j++) {
  23. 			cin>>ma[j].a;
  24. 		}
  25. 		sort (ma+1, ma+m+1, cmp);
  26. 		string in="";
  27. 		for (int j=1; j<=m; j++) {
  28. 			in+=ma[j].a;
  29. 		}
  30. 		cout<<in<<endl;
  31. 	}
  32. }
Success #stdin #stdout 0s 15248KB
comments (?)
stdin
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5
4 acm ptit for students
5 k duz q rc lvraw
3 a bb cc
5 asf asfi asfi afsi okj
5 ukuy hopji lie jaa dcyi
stdout
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acmforptitstudents
duzklvrawqrc
abbcc
afsiasfasfiasfiokj
dcyihopjijaalieukuy
https://ideone.com/h4M0hN
v- P17QPROB - QUALIFY ROUND 2017 B - GHÉP XÂU
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
secret

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