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author | Jack Sangdahl <[email protected]> | 2025-03-10 00:36:13 -0600 |
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committer | Jack Sangdahl <[email protected]> | 2025-03-10 00:36:13 -0600 |
commit | 7c60dee83b436e8e8a667bf9f191beced8de4fc3 (patch) | |
tree | eb7a24ee2067f92245c57bb118e85a1baf15df50 /other/sort_char_freq.rs | |
parent | 5d7cdc215e4ba1ec4cbb24c084cccb5e5e641468 (diff) | |
download | leetcode-7c60dee83b436e8e8a667bf9f191beced8de4fc3.tar.gz leetcode-7c60dee83b436e8e8a667bf9f191beced8de4fc3.zip |
chore: move cpp and rust code to directory
Diffstat (limited to 'other/sort_char_freq.rs')
-rw-r--r-- | other/sort_char_freq.rs | 16 |
1 files changed, 16 insertions, 0 deletions
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::<Vec<_>>(); + 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)); +} |