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  1. #include <iostream>
  2. #include <bits/stdc++.h>
  3. #include<string.h>
  4. #define OPTIMIZE  ios_base::sync_with_stdio(false); cin.tie(NULL)
  5. using namespace std;
  6. int main()
  7. {
  8.     OPTIMIZE;
  9.     string s;
  10.     string newstr;
  11.     cin >> s;
  12.     char c;
  13.     stack<char> st;
  14.     int i;
  15.  
  16.     for (i = 0; i < s.size(); i++)
  17.     {
  18.         c = s[i];
  19.         if (c == '<')
  20.         {
  21.             if (!st.empty())
  22.             {
  23.                 st.pop();
  24.             }
  25.         }
  26.         else
  27.         {
  28.             st.push(c);
  29.         }
  30.     }
  31.  
  32.  
  33.     while (!st.empty())
  34.     {
  35.         newstr = st.top() +newstr;
  36.         st.pop();
  37.     }
  38.  
  39.     cout << newstr <<"\n";
  40.  
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 0.01s 5380KB
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Standard input is empty
stdout
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language:

						
C++ (gcc 8.3)

					

					

						
created:
								
						
1 year ago

					

					

						
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