From 7c60dee83b436e8e8a667bf9f191beced8de4fc3 Mon Sep 17 00:00:00 2001 From: Jack Sangdahl Date: Mon, 10 Mar 2025 00:36:13 -0600 Subject: chore: move cpp and rust code to directory --- other/sort_char_freq.rs | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 other/sort_char_freq.rs (limited to 'other/sort_char_freq.rs') diff --git a/other/sort_char_freq.rs b/other/sort_char_freq.rs new file mode 100644 index 0000000..a9d0e13 --- /dev/null +++ b/other/sort_char_freq.rs @@ -0,0 +1,16 @@ +struct Solution; + +impl Solution { + pub fn frequency_sort(s: String) -> String { + let mut map = std::collections::HashMap::with_capacity(26 * 2); + s.chars().for_each(|b| * map.entry(b).or_insert(0) += 1); + let mut v = map.into_iter().map(|(c, n)| (c, n)).collect::>(); + v.sort_unstable_by_key(|pair| - pair.1); + v.into_iter().flat_map(|(c, n)| vec![c; n as usize]).collect() + } +} + +fn main() { + let s = String::from("tree"); + print!("{}", Solution::frequency_sort(s)); +} -- cgit v1.2.3