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Refactor common parts

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This commit is contained in:
Bert Peters
2022-12-04 11:18:03 +01:00
parent 9d23e80256
commit 6802a7bf33
1 changed files with 7 additions and 10 deletions
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17
2022/src/day04.rs
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@@ -49,26 +49,23 @@ fn parse_assignments(input: &[u8]) -> IResult<&[u8], Vec<(Assignment, Assignment
many0(terminated(parse_line, newline))(input)
}
pub fn part1(input: &[u8]) -> Result<String> {
fn parts_common(input: &[u8], filter: impl Fn(Assignment, Assignment) -> bool) -> Result<String> {
let assigments = parse_input(input, parse_assignments)?;
let overlapping = assigments
.into_iter()
.filter(|&(a, b)| a.one_contains(b))
.filter(|&(a, b)| filter(a, b))
.count();
Ok(overlapping.to_string())
}
pub fn part1(input: &[u8]) -> Result<String> {
parts_common(input, Assignment::one_contains)
}
pub fn part2(input: &[u8]) -> Result<String> {
let assigments = parse_input(input, parse_assignments)?;
let overlapping = assigments
.into_iter()
.filter(|&(a, b)| a.one_overlaps(b))
.count();
Ok(overlapping.to_string())
parts_common(input, Assignment::one_overlaps)
}
#[cfg(test)]