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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4.  
  5. int main()
  6. {
  7.     std::string str = "ab*+cd*+ef*+gh*+ij*+kl*+" ;
  8.     std::cout << str << '\n'  ;
  9.  
  10.     constexpr char asterisk = '*' ;
  11.  
  12.     // erase first asterisk
  13.     auto pos = str.find(asterisk) ;
  14.     if( pos != std::string::npos ) str.erase(pos,1) ;
  15.     std::cout << str << '\n'  ;
  16.  
  17.     // erase last asterisk
  18.     pos = str.rfind(asterisk) ;
  19.     if( pos != std::string::npos ) str.erase(pos,1) ;
  20.     std::cout << str << '\n'  ;
  21.  
  22.     // erase all asterisk
  23.     while( ( pos = str.find(asterisk) ) != std::string::npos ) str.erase(pos,1) ;
  24.     std::cout << str << '\n'  ;
  25.  
  26.     // erase all '+'
  27.     str.erase( std::remove( str.begin(), str.end(), '+' ), str.end() ) ;
  28.     std::cout << str << '\n'  ;
  29. }
  30.  
Success #stdin #stdout 0s 3028KB
comments (?)
stdin
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Standard input is empty
stdout
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ab*+cd*+ef*+gh*+ij*+kl*+
ab+cd*+ef*+gh*+ij*+kl*+
ab+cd*+ef*+gh*+ij*+kl+
ab+cd+ef+gh+ij+kl+
abcdefghijkl
https://ideone.com/8UY8pv
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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