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  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7. 	int t;
  8. 	cin>>t;
  9. 	while(t--){
  10. 		string s;
  11. 		cin>>s;
  12. 		stack<char> st;
  13. 		int count =0;
  14. 	    for(int i=0;i<s.size();i++){
  15.  
  16.  
  17. 	    		if(s[i] == '<') {
  18. 	    			st.push(s[i]);
  19. 	    		} else {
  20.  
  21. 	    			if(s[0]=='>'){
  22. 	    			  count = -1;
  23. 	    			  break;
  24. 	    			}
  25. 	    			if(!st.empty()) {
  26.  
  27. 	    				if(st.top() == '<'){
  28. 	    					count += 2;
  29. 	    					st.pop();
  30. 	    				}
  31.  
  32. 	    			}
  33. 	    		}
  34. 	    }
  35.  
  36. 	    if(st.empty() ) {
  37. 	    	 if (count == -1){
  38. 	    	 		cout<<0<<endl;
  39. 	    	 } else{
  40. 	    	 	 cout<<count<<endl;
  41. 	    	 }
  42.  
  43. 	    } else{
  44. 	    	 cout<<0<<endl;
  45. 	    }
  46.  
  47.  
  48.  
  49. 	}
  50. 	return 0;
  51. }
Success #stdin #stdout 0s 4276KB
comments ()
stdin 
6
<<>>
><
<>>>
><><
>><>
<<<>
stdout 
4
0
2
0
0
0
https://ideone.com/0UMOIx
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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