/*
Program: Hello, World! (U1)
Task: Print a greeting line to the console. No input required.
Steps: (1) Include stdio header, (2) define main, (3) print message, (4) return 0.
*/
#include <stdio.h> // Provides printf
int main(void) { // Entry point of the program
printf("Hello, World!\n"); // Output the greeting and a newline
return 0; // Tell the OS the program finished OK
}