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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {  
  5.  
  6. std::ios_base::sync_with_stdio(false);
  7. std::cin.tie(nullptr);
  8.  
  9. string s;
  10. cin >> s;
  11.  
  12. int B = 0 ;
  13. int C = 0 ;
  14.  
  15.  
  16.  for (int i=0; i< s.size(); i++) {
  17.  	char c = s[i];
  18.  
  19.  	  if (c == 'B') {
  20.  	  	B++;
  21.  	  	}else {
  22.  	  		C++;
  23.  
  24.  	  	}
  25.  	  }
  26.  
  27.  cout << B / 2  + C /2 ;
  28. 	return 0;
  29. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/2GXIs2
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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