Rust Taskbook Level 3.10

Given an integer:

let num: u32 = 10203304506;

Print to the console the positions of all 0 digits in this number, except for the first and last.

Given an array of integers:

[123, 334, 456, 556, 789]

Write numbers consisting of different digits into a new array:

[123, 456, 789]

Given an integer:

let num: u16 = 12345;

Get an array of number characters:

char arr[] = ['1', '2', '3', '4', '5'];

The date is given in the following format:

std::string date = "2025-12-31";

Convert it to the following format:

std::string date = "31.12.2025";