/*
    hello.c

    Started in C++ by Jeff Ondich on 30 March 1998.
    Rewritten in C on 11 December 2021.
    Modified by Tanya Amert for Fall 2023.

    This program says hello to the user, and
    squares the number 6.  Exciting!

    To compile this program:

        gcc -Wall -Werror -g -o hello hello.c

    To run this program:

        ./hello
*/

#include <stdio.h>

// Prints two messages to the user, demonstrating printf
// with format specifiers.
int main()
{
    printf("Hello, world!\n");

    // Take a look at the %d.  That's what's known as a "format specifier",
    // and tells printf in what way to print the corresponding parameters.
    // Here, we're printing the values of both number and number*number
    // as decimal (i.e., base ten) numbers.
    int number = 6;
    printf("%d squared is %d\n", number, number * number);

    return 0;
}