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  1. #include <iostream>
  2. #include <string>
  3. #include <regex>
  4. #include <algorithm>
  5.  
  6. int main() {
  7.     std::string s;	
  8.     std::cin >> s;	
  9.     std::regex r("(?=([^*][*]*[^*]))");
  10.  
  11.     int best = s.size();
  12.     for (auto i = std::sregex_iterator(s.begin(), s.end(), r); i != std::sregex_iterator(); ++i) {
  13.         int pos = i->position(1);
  14.         int len = i->length(1); 
  15.         if (s[pos] != s[pos + len -1]) {
  16.         	best = std::min(len-2, best);
  17.         }
  18.     }	
  19.     std::cout << best;
  20.     return 0;
  21. }
Success #stdin #stdout 0s 16152KB
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https://ideone.com/2UdRGG
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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