fork(2) download
copy 
  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int n, dem = 0, top;
  6. priority_queue <int > t;
  7.  
  8. int main()
  9. {
  10.     ios_base::sync_with_stdio(0), cin.tie(0);
  11.     //freopen("inp.txt", "r", stdin);
  12.     cin >> n;
  13.     for (int i = 1; i <= 2*n; i++)
  14.     {
  15.         string s;
  16.         cin >> s;
  17.         if (s == "add")
  18.         {
  19.             cin >> top;
  20.             t.push(-top);
  21.         } else
  22.         {
  23.             if (t.empty()) continue;
  24.             if (top == -t.top())
  25.                 {
  26.                     t.pop();
  27.                     top = -t.top();
  28.                 }
  29.             else
  30.             {
  31.                 dem ++;
  32.                 t.pop();
  33.                 top = -t.top();
  34.             }
  35.         }
  36.     }
  37.     cout << dem;
  38.     return 0;
  39. }
  40.  
Success #stdin #stdout 0s 16064KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
https://ideone.com/xpCnbh
language:
C++ (gcc 8.3)
created:
6 years 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!