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  1. /******************************************************************************
  2.  
  3. Welcome to GDB Online.
  4. GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
  5. C#, OCamldxx dVB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
  6. Code, Compile, Run and Debug online from anywhere in world.
  7.  
  8. *******************************************************************************/
  9. #include <iostream>
  10. #include <stack>
  11. #include <queue>
  12. #include <string>
  13. using namespace std;
  14. int main()
  15. {
  16.     stack<char> s;
  17.     queue<char> q;
  18.     priority_queue<char> que;
  19.     string str;
  20.     cin>>str;
  21.     int k = 1;
  22.     int ans = 0;
  23.     char n = '+';
  24.     for(char c : str){
  25.         if(s.empty()){
  26.             cout<<c<<"-\"push\""<<endl;
  27.             s.push(c);
  28.         }
  29.         else if(s.top()-'0'==k){
  30.             while(s.top()-'0'!=k){
  31.             cout<<s.top()<<"- pop"<< endl;
  32.             k++;
  33.             s.pop();
  34.             }
  35.         }
  36.         else{
  37.             cout<<c<<"-\"push\""<<endl;
  38.             s.push(c);
  39.         }
  40.     }
  41.     cout<<s.top()<< "- pop"<<endl;
  42.     s.pop();
  43.     return 0;
  44. }
Success #stdin #stdout 0.01s 5272KB
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stdout
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2-"push"
1-"push"
1- pop
https://ideone.com/Q8POXd
language:
C++14 (gcc 8.3)
created:
4 hours ago
visibility:
public

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