public/subjects/middle_day/README.md

middle_day

Instructions

Use the chrono crate to create a function named middle_day. It accepts a year, and returns the weekday of the middle day of that year, wrapped in an Option. chrono::Weekday has to be referred to as wd.

Years with an even number of days do not have a middle day, and should return None.

Expected Function

You'll need to work out the function signature for yourself.

Usage

Here is a program to test your function:

use middle_day::*;

fn main() {
    let date = Utc.ymd(2011, 12, 2).and_hms(21, 12, 09);

    println!("{:?}", middle_day(1022).unwrap());
}

And its output:

$ cargo run
Tue
$