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  1. #include <iostream>
  2. #include <map>
  3. #include <regex>
  4. #include <string>
  5.  
  6. int main()
  7. {
  8.     const std::map<int, std::string> m = {{1, "New York"}, {2, "summer"}};
  9.     std::string s = "I am in #1 city, it is now #2 time";
  10.  
  11.     for (const auto& [id, value] : m) {
  12.         s = std::regex_replace(s, std::regex("#" + std::to_string(id)), value);
  13.     }
  14.     std::cout << s << std::endl;
  15. }
  16.  
Success #stdin #stdout 0s 4344KB
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Standard input is empty
stdout
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I am in New York city, it is now summer time
https://ideone.com/gLwYYu
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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