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author | jack <0x6A73@pm.me> | 2024-06-14 13:13:15 -0600 |
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committer | jack <0x6A73@pm.me> | 2024-06-14 13:13:15 -0600 |
commit | d343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa (patch) | |
tree | 96df922dae2a5073d9a50ea70c7aae6aa37e3ebe /reverse_vowel_string.rs | |
download | leetcode-d343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa.tar.gz leetcode-d343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa.zip |
initial
Diffstat (limited to 'reverse_vowel_string.rs')
-rw-r--r-- | reverse_vowel_string.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/reverse_vowel_string.rs b/reverse_vowel_string.rs new file mode 100644 index 0000000..4ae282d --- /dev/null +++ b/reverse_vowel_string.rs @@ -0,0 +1,33 @@ +struct Solution; + +impl Solution { + pub fn reverse_vowels(s: String) -> String { + let (mut i, mut j) = (0, s.len().checked_sub(1).unwrap_or(0)); + let mut cs = s.chars().collect::<Vec<char>>(); + while i < j { + if !Self::is_vowel(cs[i].to_ascii_lowercase()) { + i += 1; + continue + } + if !Self::is_vowel(cs[j].to_ascii_lowercase()) { + j -= 1; + continue + } + cs.swap(i, j); + i += 1; + j -= 1; + } + cs.iter().collect() + } + fn is_vowel(c: char) -> bool { + match c { + 'a' | 'e' | 'i' | 'o' | 'u' => true, + _ => false + } + } +} + +fn main() { + let s = "hello".to_string(); + print!("{}", Solution::reverse_vowels(s)); +} |