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authorjack <[email protected]>2024-06-14 13:13:15 -0600
committerjack <[email protected]>2024-06-14 13:13:15 -0600
commitd343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa (patch)
tree96df922dae2a5073d9a50ea70c7aae6aa37e3ebe /word_pattern.rs
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Diffstat (limited to 'word_pattern.rs')
-rw-r--r--word_pattern.rs26
1 files changed, 26 insertions, 0 deletions
diff --git a/word_pattern.rs b/word_pattern.rs
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+++ b/word_pattern.rs
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+struct Solution;
+
+impl Solution {
+ pub fn word_pattern(pattern: String, s: String) -> bool {
+ use std::collections::{HashMap, HashSet};
+ if pattern.len() != s.matches(' ').count() + 1 {
+ return false;
+ }
+ let (mut hm, mut word_set) = (HashMap::new(), HashSet::new());
+ for (word, c) in s.split_ascii_whitespace().zip(pattern.chars()) {
+ if let Some(w) = hm.insert(c, word) {
+ if w != word {
+ return false;
+ }
+ } else if !word_set.insert(word) {
+ return false;
+ }
+ }
+ true
+ }
+}
+
+fn main() {
+ let (pattern, s) = (String::from("abba"), String::from("dog cat cat dog"));
+ print!("{}", Solution::word_pattern(pattern, s));
+}