fork download
copy 
  1. #define _CRT_SECURE_NO_WARNINGS
  2. #include <bits/stdc++.h>
  3. #include <iomanip>
  4. using namespace std;
  5.  
  6. #define ll long long
  7. #define ld long double
  8.  
  9.  
  10. int main() {
  11. 	// your code goes here
  12.  
  13. 	 ll n;
  14.     cin>> n;
  15.     stack<ll> sk;
  16.     while(n--)
  17.     {
  18.         int op;
  19.         cin>> op;
  20.  
  21.         if(op==1)
  22.         {
  23.             ll x;
  24.             cin>> x;
  25.  
  26.             if(sk.empty())
  27.                 sk.push(x);
  28.             else
  29.                 sk.push(max(x, sk.top()));
  30.  
  31.             cout<< sk.top() << "\n";
  32.  
  33.  
  34.         }
  35.         else 
  36.         {
  37.             if(!sk.empty())
  38.                 sk.pop();
  39.  
  40.             if(sk.empty())
  41.                 cout<< "Empty!\n";
  42.             else
  43.                 cout<< sk.top() << "\n";
  44.         }
  45.     }
  46. 	return 0;
  47. }
Success #stdin #stdout 0s 5312KB
comments (?)
stdin
copy 
5
1 5
1 3
1 6
2
2
stdout
copy 
5
5
6
5
5
https://ideone.com/XZE7zb
language:
C++ (gcc 8.3)
created:
5 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!