Function malachite_base::strings::string_unique

pub fn string_unique(s: &str) -> String

Takes a string slice’s unique characters and returns them in a new String.

The unique characters are output in order of appearance.

Worst-case complexity

$T(n) = O(n)$

$M(n) = O(n)$

where $T$ is time, $M$ is additional memory, and $n$ is s.len().

Examples

use malachite_base::strings::string_unique;

assert_eq!(string_unique("Hello, world!"), "Helo, wrd!");
assert_eq!(string_unique("Mississippi"), "Misp");