C "Hello, World!" Program
www.programiz.com › c-programming › examplesThe stdio.h file contains functions such as scanf () and printf () to take input and display output respectively. If you use the printf () function without writing #include <stdio.h>, the program will not compile. The execution of a C program starts from the main () function. printf () is a library function to send formatted output to the screen. In this program, printf () displays Hello, World! text on the screen.