/*This is a simple challenge to help you practice.
Input Format
You do not need to read any input in this challenge.
Output Format
Print "Hello world". */ #include <stdio.h> int main() { printf("Hello world"); return 0; }
/*This is a simple challenge to help you practice.
Input Format
You do not need to read any input in this challenge.
Output Format
Print "Hello world". */ #include <stdio.h> int main() { printf("Hello world"); return 0; }