Dulicate Character Formatting

#1

#include
#include
using namespace std;

string dupchar(string sin,string sout,int i)
{

if(sin[i+1]=='\0')
   return sout;
   
else
{
	if(sin[i]==sin[i+1])
	  sout+='*';
	sout+=sin[i+1];
	dupchar(sin,sout,i+1);
}

}

int main()
{
string sin,sout;
cin>>sin;

sout=sin[0];
cout<<dupchar(sin,sout,0);
return 0;

}

compilation error in code block please check the code

#2

Please save your code on ide.codingblocks.com and then share its link.

#3

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