#include <iostream>                /* C++ iostream            C++98/11 */
#include <string>                  /* C++ strings             C++98/11 */
#include <boost/regex.hpp>                           /* RegEx                   Boost  */
#include<boost/algorithm/string.hpp>
 
int main() {
 
  /* Our strings and string forms for the regualr expressions. */
 
  std::string rawUserQuery = "abc+edf+ggg";
  boost::replace_all(rawUserQuery, "+", "%20");
  std::cout<<rawUserQuery;
 
}
 

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