Hello world!

Hi there,

This is my first post of "Days Of Engineer".

I'm very excited to start this blog this year to connect me to huge community of software engineers.

I'm not sure how Blogger can help me thus I start from "hello world!".

Here what hello world is.

https://en.wikipedia.org/wiki/%22Hello,_World!%22_program

main( ) {
        printf("hello, world\n");
}