Rust Taskbook Level 3.8

Задание 1

Given an array of integers, check that all numbers in this array contain the digit 3.

Задание 2

Given a string:

rustlet txt: &str = "12034050607";

Find the position of the third zero in the string.

Задание 3

Integer numbers are written separated by commas:

rustlet txt: &str = "1,2,10,100,3";

Get the maximum of these numbers.

Задание 4

Given a line:

rustlet txt: &str = "abcde";

Get an array of characters from this string:

rust['a', 'b', 'c', 'd', 'e']
Задание 5

Given a string in the format:

rust"kebab-case"

Convert it to the format:

rust"snake_case"
Задание 6

Given a string in the format:

rust"snake_case"

Convert it to the format:

rust"camelCase"
Задание 7

Given a string in the format:

rust"camelCase"

Convert it to the format:

rust"snake_case"