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  1. #include <iostream>
  2. #include <string>
  3. #include <regex>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9.   string s = "x";
  10.  
  11.   s = regex_replace(s + "0123456789", regex("(\\b(?=9.*(1))|0(?=.*(1))|1(?=.*(2))|2(?=.*(3))|3(?=.*(4))|4(?=.*(5))|5(?=.*(6))|6(?=.*(7))|7(?=.*(8))|8(?=.*(9))|9(?=.*(0)))(?=9*-)|\\d{10}$"), "$2$3$4$5$6$7$8$9$10$11$12");
  12.   cout << s << '\n';
  13.  
  14.   return 0;
  15. }
  16.  
Success #stdin #stdout 0s 3552KB
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x1
https://ideone.com/K5ZKxR
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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