Rust Taskbook Level 4.9

Given a string of letters and numbers:

let txt: &str = 'a1b2c345';

Please make sure that this line does not contain more than three letters.

Two numbers are given:

let num1: u16 = 12;
let num2: u16 = 34;

Write the common divisors of these numbers into a new vector.

Given a vector:

let vct: Vec<i16> = Vec::new();

Use a loop to fill this vector with random integers between 1 and 100.

Given a string:

"abcdefg"

Remove every third character from this line. In our case, we should get the following:

"abdeg"

Given an array with numbers of days of the week:

let arr = [1, 2, 7];

Write the names of these months into a new array:

["Mon", "Tue", "Sun"]