fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define MM ios_base::sync_with_stdio(false),cin.tie(nullptr),cout.tie(nullptr);
  4. int main(){
  5.     MM
  6.     int t,f=1;
  7.     cin>>t;
  8.     deque<int> ss;
  9.     bool flag = false;
  10.     while (t--) {
  11.         string s;
  12.         cin>>s;
  13.         if (s=="toFront") {
  14.             int n;
  15.             cin>>n;
  16.             if (flag) {
  17.                 ss.push_back(n);
  18.             }
  19.             else {
  20.                 ss.push_front(n);
  21.             }
  22.         }
  23.         else if (s=="push_back") {
  24.             int n;
  25.             cin>>n;
  26.             if (flag) {
  27.                 ss.push_front(n);
  28.             }
  29.             else {
  30.                 ss.push_back(n);
  31.             }
  32.         }
  33.         else if (s=="back") {
  34.             if (!ss.empty()) {
  35.                 cout<<ss.back()<<'\n';
  36.                 ss.pop_back();
  37.             }
  38.             else {
  39.                 cout<<"No job for Ada?"<<'\n';
  40.             }
  41.         }
  42.         else if (s=="front") {
  43.             if (!ss.empty()) {
  44.                 cout<<ss.front()<<'\n';
  45.                 ss.pop_front();
  46.             }
  47.             else {
  48.                 cout<<"No job for Ada?"<<'\n';
  49.             }
  50.         }
  51.         else if (s=="reverse") {
  52.             if (f) {
  53.                 flag = true;
  54.                 f=0;
  55.             }
  56.             else {
  57.                 flag = false;
  58.                 f=1;
  59.             }
  60.         }
  61.     }
  62. }
Success #stdin #stdout 0.01s 5276KB
comments (?)
stdin
copy 
15
toFront 93
front
back
reverse
back
reverse
toFront 80
push_back 53
push_back 50
front
front
reverse
push_back 66
reverse
front
stdout
copy 
93
No job for Ada?
No job for Ada?
80
53
66
https://ideone.com/tV2aY5
language:
C++14 (gcc 8.3)
created:
6 days 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!