program of password, where you write your password and it print in the form of stars

#include<iostream.h>
#include<conio.h>
#include<string.h>
#include<process.h>
void main()
{    clrscr();
     cout<<" type'exit'for out of program"<<endl;
     char str[]="dhami",x[]="exit",m[50];
     int i,j,k;
     cout<<"enter the code ";
     label:
     i=0;
     while((m[i]=getch())!='\r')
     {    cout<<"*";
      i++;
               }

     m[i]='\0';
     j=strcmp(str,m);
     k=strcmp(x,m);


     if(j==0)
     {    cout<<"\nhello";
      getch();
      exit;         }
     else
     {    cout<<"\ninvalid try again  ";
      if(k==0)
      exit;
      else
      goto label;                    }
 }