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Prepare future scaffolding.

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Also reformat the code, but that is nothing significant.
This commit is contained in:
Bert Peters
2018-12-09 13:02:54 +01:00
parent 9b04e3b2c9
commit 9b287a0098
23 changed files with 456 additions and 23 deletions
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16
2018/src/day04.rs
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@@ -1,14 +1,14 @@
use std::collections::HashMap;
use std::io;
use std::io::BufRead;
use chrono::DateTime;
use chrono::offset::TimeZone;
use chrono::offset::Utc;
use chrono::Timelike;
use regex::Regex;
use common;
use std::collections::HashMap;
use chrono::Timelike;
#[derive(Debug, PartialEq, PartialOrd, Ord, Eq, Copy, Clone)]
enum EventType {
@@ -37,7 +37,7 @@ impl Day04 {
self.events.clear();
let reader = io::BufReader::new(input);
let scanner = Regex::new(r"^\[([^\]]+)\] (Guard #(\d+)|falls asleep|wakes up)").unwrap();
let scanner = Regex::new(r"^\[([^]]+)] (Guard #(\d+)|falls asleep|wakes up)").unwrap();
for line in reader.lines() {
let line = line.unwrap();
@@ -59,7 +59,7 @@ impl Day04 {
self.events.sort_unstable();
}
fn get_sleeps(&self) -> HashMap<usize, [u32;60]> {
fn get_sleeps(&self) -> HashMap<usize, [u32; 60]> {
let mut sleeps = HashMap::new();
let mut guard: Option<usize> = None;
let mut sleep_start: Option<DateTime<Utc>> = None;
@@ -70,12 +70,12 @@ impl Day04 {
EventType::SHIFT(val) => {
guard = Some(*val);
sleep_start = None;
},
}
EventType::SLEEP => {
sleep_start = Some(event.time.clone());
},
}
EventType::WAKE => {
let mut minutes = sleeps.entry(guard.unwrap()).or_insert([0u32;60]);
let mut minutes = sleeps.entry(guard.unwrap()).or_insert([0u32; 60]);
for m in sleep_start.unwrap().minute()..event.time.minute() {
minutes[m as usize] += 1;
}
@@ -86,7 +86,7 @@ impl Day04 {
sleeps
}
fn format_results(sleepers: HashMap<usize, [u32;60]>, scores: HashMap<usize, u32>) -> String {
fn format_results(sleepers: HashMap<usize, [u32; 60]>, scores: HashMap<usize, u32>) -> String {
let (best_sleeper, _) = scores.iter().max_by(|&(_, a), &(_, b)| a.cmp(b)).unwrap();
let best_minute = sleepers[best_sleeper].iter().enumerate()