public/subjects/middle_day

middle_day

Instructions

Use the chrono crate to create a function called middle_day, which returns, wrapped in an Option, the Weekday of the middle day of the year passed as an argument. chrono::Weekday has to be refered as wd.

As an even number of days doesn't have a middle day, when the year passed as an argument has an even number of days, the program should return None.

Expected Function

For this exercise the signature of the function has to be found out.

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
$