Using strings in C++ -

i made program in java new in c++ , using strings has been imposible. wondering if point me in direction me "translate" program c++. how use strings , maybe see in code worth mentioning. note: not asking of direct translation, info me it, code reference.

import java.io.bufferedwriter; import java.io.outputstreamwriter; import java.util.scanner; public class dragoncurve{     public static void main(string[] args){         try{         scanner sc = new scanner(system.in);         bufferedwriter log = new bufferedwriter(new outputstreamwriter(system.out));          int n;         while((n = integer.parseint(sc.nextline()))!=-1){             log.write(dragon(n)+"\n");         }          log.flush();     }catch(exception e){         e.printstacktrace();     } }  public static string dragon(int n){      if(n>2){         string aux = dragon(n-1);         return aux+"l"+reverse(aux);     }else if(n==2)         return "llr";        else if(n==1)         return "l";     else if(n==0)         return "";      return ""; }  public static string reverse(string aux){     string ans = "";      for(int = aux.length();i>0;i--){         if(aux.charat(i-1)=='l')             ans+='r';         else             ans+='l';     }      return ans; } } 

to started, here how write i/o . (many books cover badly).

i left string handling section figure out. not dissimilar java, have bear in mind std::string not include automatic functions converting integer or character string; can't use + operator. learn that, read this thread.

i recommend learning book. if don't have book, can cppreference.com or other sites see how std::string works.

note std::reverse exists, don't have write own reverse function.

#include <iostream> #include <string> #include <sstream>  std::string dragon(int n) {     // exercise reader. }  int main() {     std::string s;     int n;      while ( std::getline( std::cin, s ) )     {          std::istringstream iss(s);          while ( iss >> n )              std::cout << dragon(n) << std::endl;     } }