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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. /*chapter 6 version: 
  4. tanjita
  5. tanyueqi
  6. tanguzheng
  7. laerhu
  8. chuidizi
  9. ne
  10. dian
  11. mai(sell)
  12. mai(buy)
  13. ba
  14. a
  15. ting
  16. yinyue
  17. keyi
  18. jiao
  19. xiexie */
  20. int main() {
  21. 	vector<string> v;
  22. 	string s;
  23. 	random_device rd;
  24. 	mt19937 gen(rd()); 
  25. 	while(cin>>s){
  26. 		v.push_back(s);
  27. 	}
  28. 	uniform_int_distribution<> distrib(1, v.size()); 
  29. 	set<int>ind;
  30. 	while(ind.size()<10){
  31. 		int x = distrib(gen);
  32. 		ind.insert(x);
  33. 	}
  34. 	for(int i: ind){
  35. 		cout<<v[i-1]<<endl;
  36. 	}
  37. 	return 0;
  38. }
Success #stdin #stdout 0s 5320KB
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stdin
copy 
tanjita
tanyueqi
tanguzheng
laerhu
chuidizi
ne
dian
mai(sell)
mai(buy)
ba
a
ting
yinyue
keyi
jiao
xiexie
stdout
copy 
tanyueqi
tanguzheng
laerhu
mai(buy)
ba
ting
yinyue
keyi
jiao
xiexie
https://ideone.com/G2bPGb
language:
C++14 (gcc 8.3)
created:
1 hour ago
visibility:
public

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