×

×

Correct!

Exercise:

Insert the missing part of the code below to output "Hello World!".

int main() { printf("Hello World!"); return 0; }

Not Correct

Click here to try again.

Correct!

Next ❯

int w3exercise_input_no_0
() {
  w3exercise_input_no_1
("Hello World!");
  return 0;
}

Completed 0 of 39 Exercises:

C Syntax

Exercise 1 Go to C Syntax Tutorial

C Comments

Exercise 1 Go to C Comments Tutorial

C Variables

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to C Variables Tutorial

C Data Types

Exercise 1 Exercise 2 Go to C Data Types Tutorial

C Operators

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to C Operators Tutorial

C If...Else

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to C If...Else Tutorial

C Switch

Exercise 1 Exercise 2 Go to C Switch Tutorial

C Loops

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Go to C Loops Tutorial

C Arrays

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to C Arrays Tutorial

C Strings

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to C Strings Tutorial

C Pointers

Exercise 1 Go to C Pointers Tutorial

C Functions

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Go to C Functions Tutorial

C Structures

Exercise 1 Exercise 2 Exercise 3 Go to C Structures Tutorial