(s: String)
| 1 | pub fn reverse_only_letters(s: String) -> String { |
| 2 | let mut idxs: Vec<usize> = vec!(); |
| 3 | let mut tmp = String::new(); |
| 4 | for (i, c) in s.chars().enumerate() { |
| 5 | if c.is_alphabetic() { |
| 6 | idxs.push(i); |
| 7 | tmp.push(c); |
| 8 | } |
| 9 | } |
| 10 | let mut s = s; |
| 11 | unsafe { |
| 12 | let vec = s.as_mut_vec(); |
| 13 | let tmp_vec = tmp.as_mut_vec(); |
| 14 | tmp_vec.reverse(); |
| 15 | for (i, c) in tmp_vec.iter().enumerate() { |
| 16 | vec[idxs[i]] = *c; |
| 17 | } |
| 18 | } |
| 19 | s |
| 20 | } |
| 21 | |
| 22 | fn main() { |
| 23 | let s = "Test1ng-Leet=code-Q!".to_string(); |