How do I create a log in system turbo C

#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char u[10],p[10],user[]="lokesh",pas[]="spiderman";
int n=0;
clrscr();
printf("\n press enter and enter username and password(only
3 attempts)");
while(n<=2)
{
printf("\n Username: ");
scanf("%s",&u);
printf("\n Password: ");
scanf("%s",&p);
if(strcmp(user,u)==0 && strcmp(pas,p)==0)
{
printf("\n Congratulations!");
break;
}
else
{
n++;
printf("\n the username or password is incorrect. only %d
trials left. press enter", 3-n);
}
}
if(n==3)
{
printf("\n you have used maximum attempts(3). please try
later.");
}
getch();
}