ex: C hello world

#include <stdio.h>

int main() {
    printf("Hello, World!\n");
    return 0;
}
  • #include <stdio.h>: This line includes the standard input/output library in the C program. It is necessary for using functions like printf and scanf.

  • int main() {: This line marks the beginning of the main function, which is the entry point of every C program. The program execution starts from the main function.

  • printf("Hello, World!\n");: This line prints the string "Hello, World!" to the standard output (usually the console). The \n represents a newline character, which moves the cursor to the next line.

  • return 0;: This line indicates the end of the main function and returns an exit status of 0 to the operating system. It signifies a successful execution of the program.