fork download
copy 
  1. #include <iostream>
  2. #include <queue>
  3. #include <string>
  4.  
  5. using namespace std;
  6.  
  7. int main() {
  8.     queue<int>p;
  9.     int n;
  10.     cin>>n;
  11.     while(n--){
  12.     	string g;
  13.     	cin>>g;
  14.     	int o;
  15.     	if(g=="push"){
  16.     		cin>>o;
  17.     		p.push(o);
  18.     	}else if(g=="pop"){
  19.           p.pop();}
  20.     else if(g=="front"){
  21.        cout<<p.front()<<endl;}
  22.    else if(g=="back"){
  23.    	cout<<p.back()<<endl;
  24.    }
  25. }
  26. }
Success #stdin #stdout 0s 5324KB
comments (?)
stdin
copy 
15
push 5
front
back
push 6
front
back
push 3
front
back
pop
front
back
pop
front
back
stdout
copy 
5
5
5
6
5
3
6
3
3
3
https://ideone.com/WMriPJ
language:
C++ (gcc 8.3)
created:
18 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!