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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void) {
  5. 	int t;
  6. 	scanf("%d", &t);
  7. 	for(; t > 0; t--){
  8. 	    char *str;
  9. 	    scanf("%s", str);
  10. 	    int l = (int)strlen(str);
  11. 	    if(l >= 1){
  12. 	        char stack[l];
  13. 	        int top = -1, prLen = 0;     //prLen - prefix length
  14. 	        //string is valid only when str[0] == '<', stacked must be pushed atleast once in start
  15. 	        // and no('<') <= no('>')
  16. 	        if(str[0] == '<'){ 
  17.     	        for(int i = 0; i < l; i++){
  18. 	                if(str[i] == '<'){
  19. 	                    stack[++top] = str[i];
  20. 	                    prLen++;
  21. 	                }
  22. 	                else if(str[i] == '>' && top != -1){
  23. 	                    top--;
  24. 	                    prLen++;
  25. 	                }
  26. 	                if(top == -1)
  27. 	                    break;
  28. 	            }
  29. 	            if(top == -1)
  30. 	                printf("%d\n", prLen);
  31. 	            else
  32. 	                printf("%d\n", 0);
  33. 	        }
  34. 	        else
  35. 	            printf("%d\n", 0);
  36.  
  37. 	    }
  38.  
  39.  
  40. 	}
  41. 	return 0;
  42. }
  43.  
  44.  
Runtime error #stdin #stdout 0s 4508KB
comments (?)
stdin 
1
<<>>
stdout 
Standard output is empty
https://ideone.com/v7nLuW
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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