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2021: day06: use a VecDeque for faster rotating

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This commit is contained in:
Antoine Martin 2021-12-06 12:15:25 +01:00
parent fceda8ac1b
commit 7077559b3a
1 changed files with 5 additions and 2 deletions
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7
aoc2021/src/day06.rs
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@ -1,3 +1,4 @@
use std::collections::VecDeque;
use std::fmt::Write; use std::fmt::Write;
use std::str; use std::str;
@ -31,7 +32,7 @@ fn part2(input: &str) -> Result<usize> {
} }
struct School { struct School {
fish_timers: [usize; SPAWNING_DELAY as usize + 2], fish_timers: VecDeque<usize>,
} }
impl School { impl School {
@ -66,7 +67,9 @@ impl std::str::FromStr for School {
fish_timers[fish?] += 1; fish_timers[fish?] += 1;
} }
Ok(School { fish_timers }) Ok(School {
fish_timers: fish_timers.into(),
})
} }
} }