Modify the above program to provide border lines to the address.

1.2.c

//
//  main.c
//  midterm
//
//  Created by Md Mazedul Islam Khan on 3/21/15.
//  Copyright (c) 2015 Md Mazedul Islam Khan. All rights reserved.
//

#include <stdio.h>

int main(int argc, const char * argv[]) {
    // insert code here...
    printf("First line          :          Name\n");
    printf("Second line         :          Diir No, Street\n");
    printf("----------------------------------------------\n");
    printf("Third line          :          City, Pin code\n");
    return 0;
}

Using turbo c..No errrors bt o/p is not displayed on the screen

There's definitely something wrong on your setup then as I can confirm the relevant code provided in the gist still works fine as expected. You can test it here.

what is border line thing ???

It's simply a new line

Why did I have put those argument inside the main parenthesis

@irenjahan here you go: https://stackoverflow.com/questions/4575801/objective-c-main-routine-what-is-int-argc-const-char-argv