Rust Taskbook Level 9.10
Ask the user for two numbers. Check whether these numbers are friendly or not.
Given some array:
let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
Given a variable:
int n = 3;
Turn this array into a two-dimensional array, with n elements per subarray.
