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  1. #include <iostream>
  2. #include <stack>
  3. #include <string>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	stack<int>p;
  8. 	int n;
  9. 	cin>>n;
  10. 	while(n--){
  11. 		string g;
  12. 		cin>>g;
  13. 		int o;
  14. 		if(g=="push"){
  15. 			cin>>o;
  16. 			p.push(o);
  17. 		}else if(g=="top"){
  18. 		cout<<p.top()<<endl;
  19. 		}
  20. 		else if(g=="pop"){
  21.  
  22. 			p.pop();
  23. 		}
  24. 	}}
  25.  
Success #stdin #stdout 0s 5324KB
comments (?)
stdin
copy 
10
push 5
top
push 6
top
push 3
top
pop
top
pop
top
stdout
copy 
5
6
3
6
5
https://ideone.com/BLA59x
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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