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  1. #include <iostream>
  2. #include <fstream>
  3. #include <algorithm>
  4. #include <cmath>
  5. #include <vector>
  6. #include <unordered_map>
  7. #include <iomanip>
  8. #include <stack>
  9. #include <queue>
  10. #include <deque>
  11. #define uwf(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);}
  12. #define zukkyng int main()
  13. #define f first 
  14. #define s second 
  15. #define riel_pragma ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
  16. #define ll long long
  17. #define pii pair<int,int>
  18. using namespace std;
  19. /*
  20.     this code was written by zukkyng/AlephZ from ILS(2024-2027)
  21. */
  22.  
  23. stack<int> mmb;
  24. stack<int> bmg;
  25. zukkyng
  26. {
  27.     int n,dir,x;
  28.     cin>>n;
  29.     while (n--)
  30.     {
  31.         cin>>dir;
  32.         if (dir==1)
  33.         {
  34.             cin>>x;
  35.             mmb.push(x);
  36.             if (bmg.empty()) bmg.push(x);
  37.             else
  38.             {
  39.                 if (x>bmg.top()) bmg.push(x);
  40.             }
  41.         }
  42.         if (dir==2)
  43.         {
  44.             if (mmb.top()==bmg.top()) bmg.pop();
  45.             mmb.pop();
  46.         }
  47.         if (dir==3) cout<<bmg.top()<<'\n'; 
  48.     }
  49. }
  50.  
Success #stdin #stdout 0s 5284KB
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stdin
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10
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1 20
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1 26
1 20
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1 91
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stdout
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26
91
https://ideone.com/sGbmW9
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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