Rust Taskbook Level 4.6

Задание 1

Given a string, check that this string consists only of numbers.

Задание 2

Given a vector:

rustvec![1, 0, 2, 3, 0, 5]

Remove all zeros from the vector:

rust[1, 2, 3, 5]

Задание 3

Given a vector:

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

Write code that will fill this vector with powers of two to the nth power:

rust[2, 4, 8, 16, 32]

Задание 4

Given an integer:

rustlet num: u16 = 12345;

Get the first even digit from the end of this number.

Задание 5

Write a program that will generate the following string:

rust"54321"

Задание 6

Given an array of integers:

rustlet arr = [123, 102, 345, 350];

Write into the new vector those numbers that contain the digit zero.

Задание 7

Given a line:

rust"abcdef"

Get every second character of this string:

rust"acf"