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  1. #include <bits/stdc++.h>
  2.  
  3.  #define all(c) c.begin(), c.end()
  4. #define tr(container, it) \
  5.       for(typeof(container.begin()) it = container.begin(); it != container.end(); it++)
  6.  
  7. using namespace std;
  8.  
  9. int main()
  10. {
  11.   // ios_base::sync_with_stdio(false);
  12.   // cin.tie(NULL);
  13.   int t,i;
  14.   cin>>t;
  15.   for(int j=0;j<t;j++) {
  16.     string str;
  17.     stack<char> stk;
  18.     cin>>str;
  19.     bool fail = false;
  20.     int count = 0;
  21.     int max_count = 0;
  22.     for(i=0;i<str.length();i++) {
  23.       if(str.at(i) == '>' && stk.empty() == true) {
  24.         fail = true;
  25.         count = 0;
  26.         if(count >= max_count){
  27.           max_count = count;
  28.         }
  29.       }
  30.       else {
  31.         if(str.at(i) == '<'){
  32.           stk.push('<');
  33.           // count++;
  34.           if(count >= max_count){
  35.             max_count = count;
  36.           }
  37.         }
  38.         else if(str.at(i) == '>'){
  39.           stk.pop();
  40.           count+=2;
  41.           if(count >= max_count){
  42.             max_count = count;
  43.           }
  44.         }
  45.       }
  46.     }
  47.     if(stk.empty() == false) {
  48.       count = 0;
  49.       if(count >= max_count){
  50.         max_count = count;
  51.       }
  52.     }
  53.     if(max_count!=1)
  54.       cout<< max_count<<endl;
  55.     else
  56.       cout<<0<<endl;
  57.   }
  58. 	return 0;
  59. }
  60.  
Success #stdin #stdout 0s 4340KB
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https://ideone.com/O4w7qo
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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