advent_of_code_2024::day_4

Struct Wordsearch

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struct Wordsearch {
    cells: Vec<Vec<char>>,
}
Expand description

A wordsearch grid

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§cells: Vec<Vec<char>>

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impl Wordsearch

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fn find_all(&self, letter: &char) -> Vec<(usize, usize)>

Return a list of all the cell coordinates that contain the provided letter

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fn words_from(&self, start: &(usize, usize), length: usize) -> Vec<String>

Find all the words in the 8 possible axes from a given start, of the given length. These will be cropped if any overflow the edges of the Wordsearch.

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fn get_word( &self, start: &(usize, usize), length: usize, delta: &(isize, isize), ) -> String

Return the letters along a given delta from a starting coordinate pair, of the given length. It will be cropped if it overflows the wordsearch.

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fn char_at(&self, (x, y): &(usize, usize)) -> Option<&char>

If the coordinate pair given is within the grid return Some(letter) otherwise None.

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fn word_count(&self, search: &String) -> usize

Solves part 1: Find all instances of the search word in the wordsearch

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fn is_x_mas(&self, coord: &(usize, usize)) -> bool

For a given center point, return true if it is the centre of an X-MAS.

Valid matches are:

M.M  M.S  S.M  S.S
.A.  .A.  .A.  .A.
S.S  M.S  S.M  M.M
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fn count_x_masses(&self) -> usize

Solves part 2: Find all the A’s in the grid and count those that are the center of an X-MAS

Trait Implementations§

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impl Debug for Wordsearch

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl FromStr for Wordsearch

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type Err = ()

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more
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impl PartialEq for Wordsearch

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fn eq(&self, other: &Wordsearch) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for Wordsearch

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impl StructuralPartialEq for Wordsearch

Auto Trait Implementations§

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impl<T> Any for T
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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

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fn equivalent(&self, key: &K) -> bool

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fn instrument(self, span: Span) -> Instrumented<Self>

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const ALIGN: usize = _

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type Init = T

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