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@ -8,11 +8,11 @@ pub struct Day05 {
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input: String,
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input: String,
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}
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}
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#[allow(dead_code)]
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impl Day05 {
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impl Day05 {
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fn is_nice(string: &String) -> bool {
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fn is_nice(string: &String) -> bool {
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Day05::has_three_vowels(string) &&
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Day05::has_pair_of_two_letters(string) &&
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Day05::has_double_letters(string) &&
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Day05::has_letter_sandwich(string)
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Day05::has_no_substrings(string)
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}
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}
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fn has_three_vowels(string: &String) -> bool {
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fn has_three_vowels(string: &String) -> bool {
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@ -27,6 +27,17 @@ impl Day05 {
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fn has_no_substrings(string: &String) -> bool {
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fn has_no_substrings(string: &String) -> bool {
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!vec!["ab", "cd", "pq", "xy"].iter().any(|&s| string.contains(s))
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!vec!["ab", "cd", "pq", "xy"].iter().any(|&s| string.contains(s))
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}
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}
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fn has_pair_of_two_letters(string: &String) -> bool {
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string.as_bytes().windows(2).any(|win| {
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let s = String::from_utf8(win.to_vec()).unwrap();
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string.split(&s).count() > 2
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})
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}
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fn has_letter_sandwich(string: &String) -> bool {
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string.as_bytes().windows(3).any(|win| win[0] == win[2])
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}
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}
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}
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impl Day for Day05 {
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impl Day for Day05 {
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@ -41,9 +52,8 @@ impl Day for Day05 {
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#[test]
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#[test]
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fn test_nice() {
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fn test_nice() {
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assert!( Day05::is_nice(&"ugknbfddgicrmopn".to_string()));
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assert!( Day05::is_nice(&"qjhvhtzxzqqjkmpb".to_string()));
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assert!( Day05::is_nice(&"aaa".to_string()));
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assert!( Day05::is_nice(&"xxyxx ".to_string()));
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assert!(!Day05::is_nice(&"jchzalrnumimnmhp".to_string()));
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assert!(!Day05::is_nice(&"uurcxstgmygtbstg ".to_string()));
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assert!(!Day05::is_nice(&"haegwjzuvuyypxyu".to_string()));
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assert!(!Day05::is_nice(&"ieodomkazucvgmuy ".to_string()));
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assert!(!Day05::is_nice(&"dvszwmarrgswjxmb".to_string()));
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}
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}
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