rust_digits
a rust Library contains functions for dealing with numbers without converting them to string
functions:
pub fn min_digit(mut n: i32) -> i32
pub fn max_digit(mut n: i32) -> i32
pub fn replace_digit(mut n: i32, replaced: i32, replace_with: i32) -> i32
pub fn remove_n(mut n: i32, removed: i32) -> i32
pub fn cat_rite(mut n: i32, cat: i32) -> i32
pub fn cat_left(mut n: i32, cat: i32) -> i32
pub fn add_digit(mut n: i32, digit: i32) -> i32
pub fn count_n(mut n: i32) -> i32
pub fn last_digit(mut n: i32) -> i32
pub fn first_digit(mut n: i32) -> i32
pub fn reverse_n(mut n: i32) -> i32