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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/min_window_substring.rs | |
parent | 5d7cdc215e4ba1ec4cbb24c084cccb5e5e641468 (diff) | |
download | leetcode-7c60dee83b436e8e8a667bf9f191beced8de4fc3.tar.gz leetcode-7c60dee83b436e8e8a667bf9f191beced8de4fc3.zip |
chore: move cpp and rust code to directory
Diffstat (limited to 'other/min_window_substring.rs')
-rw-r--r-- | other/min_window_substring.rs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/other/min_window_substring.rs b/other/min_window_substring.rs new file mode 100644 index 0000000..f23402b --- /dev/null +++ b/other/min_window_substring.rs @@ -0,0 +1,43 @@ +struct Solution; + +impl Solution { + pub fn min_window(s: String, t: String) -> String { + let mut state = [0 as isize; (b'z' - b'A' + 1) as usize]; + let mut target = [0 as isize; (b'z' - b'A' + 1) as usize]; + for b in t.bytes() { + target[(b - b'A') as usize] += 1; + } + let (target, string, mut best_from, mut best_to, mut from, mut to, mut chars_found, chars_expected) = + (target, s.as_bytes(), 0, 0, 0, 0, 0, target.iter().filter(|&&ch| ch > 0).count()); + while to < string.len() { + let ch = (string[to] - b'A') as usize; + if target[ch] > 0 { + if state[ch] + 1 == target[ch] { + chars_found += 1; + } + state[ch] += 1; + } + if chars_found == chars_expected { + let mut fch = (string[from] - b'A') as usize; + while target[fch] == 0 || state[fch] > target[fch] { + if state[fch] > 0 { + state[fch] -= 1; + } + from += 1; + fch = (string[from] - b'A') as usize; + } + if to - from < best_to - best_from || best_to == 0 { + best_from = from; + best_to = to + 1; + } + } + to += 1; + } + s[best_from..best_to].to_string() + } +} + +fn main() { + let (s, t) = (String::from("ADOBECODEBANC"), String::from("ABC")); + print!("{}", Solution::min_window(s, t)); +} |