thallada/advent-of-code-2018
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Try really sloppily adding hour * 60 to mins

Browse Source 
Tests still pass but real result is STILL the same. Think I give up on this one.
This commit is contained in:
Tyler Hallada 2018-12-18 00:05:45 -05:00
parent 3f74dcb73e
commit 34eaed357d
1 changed files with 18 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/day4.rs
View File

@ -74,7 +74,7 @@ fn get_part1(filename: &str) -> Result<u32, Box<Error>> {
let minutes_asleep = minutes_asleep_per_guard(records); let minutes_asleep = minutes_asleep_per_guard(records);
let sleepiest_guard = minutes_asleep.iter().max_by_key(|&(_, mins)| mins.len()).unwrap(); let sleepiest_guard = minutes_asleep.iter().max_by_key(|&(_, mins)| mins.len()).unwrap();
let sleepiest_minute = mode(sleepiest_guard.1); let sleepiest_minute = mode(sleepiest_guard.1);
Ok(sleepiest_guard.0 * sleepiest_minute) Ok(sleepiest_guard.0 * (sleepiest_minute % 60))
} }
fn get_part2(filename: &str) -> Result<u32, Box<Error>> { fn get_part2(filename: &str) -> Result<u32, Box<Error>> {
@ -90,7 +90,7 @@ fn get_part2(filename: &str) -> Result<u32, Box<Error>> {
.iter() .iter()
.max_by_key(|(_, mins)| mins.into_iter().filter(|min| **min == sleepiest_minute).count()) .max_by_key(|(_, mins)| mins.into_iter().filter(|min| **min == sleepiest_minute).count())
.unwrap(); .unwrap();
Ok(sleepiest_guard.0 * sleepiest_minute) Ok(sleepiest_guard.0 * (sleepiest_minute % 60))
} }
fn mode(numbers: &[u32]) -> u32 { fn mode(numbers: &[u32]) -> u32 {
@ -113,9 +113,19 @@ fn minutes_asleep_per_guard(mut records: Vec<Record>) -> HashMap<u32, Vec<u32>>
for record in records { for record in records {
match record { match record {
Record::Start { time: _, guard_id } => current_guard = guard_id, Record::Start { time: _, guard_id } => current_guard = guard_id,
Record::Sleep { time } => fell_asleep = time.minute(), Record::Sleep { time } => {
let mut hour = 0;
if time.hour() == 0 {
hour = 60
}
fell_asleep = time.minute() + hour;
}
Record::Wake { time } => { Record::Wake { time } => {
let mut slept_minutes = (fell_asleep..time.minute()).collect(); let mut hour = 0;
if time.hour() == 0 {
hour = 60
}
let mut slept_minutes = (fell_asleep..(time.minute() + hour)).collect();
match minutes_asleep.entry(current_guard) { match minutes_asleep.entry(current_guard) {
Entry::Vacant(e) => { e.insert(slept_minutes); }, Entry::Vacant(e) => { e.insert(slept_minutes); },
Entry::Occupied(mut e) => { e.get_mut().append(&mut slept_minutes); }, Entry::Occupied(mut e) => { e.get_mut().append(&mut slept_minutes); },
@ -281,20 +291,20 @@ mod tests {
#[test] #[test]
fn gets_minutes_asleep_per_guard() { fn gets_minutes_asleep_per_guard() {
let mut expected: HashMap<u32, Vec<u32>> = HashMap::new(); let mut expected: HashMap<u32, Vec<u32>> = HashMap::new();
expected.insert(10, vec![5, 6, 7, 8, 9]); expected.insert(10, vec![59, 60, 61, 62, 63, 64]);
assert_eq!(minutes_asleep_per_guard(vec![ assert_eq!(minutes_asleep_per_guard(vec![
Record::Sleep { Record::Sleep {
time: NaiveDateTime::parse_from_str( time: NaiveDateTime::parse_from_str(
"1518-11-01 00:05", "%Y-%m-%d %H:%M").unwrap(), "1518-11-01 23:59", "%Y-%m-%d %H:%M").unwrap(),
}, },
Record::Start { Record::Start {
time: NaiveDateTime::parse_from_str( time: NaiveDateTime::parse_from_str(
"1518-11-01 00:00", "%Y-%m-%d %H:%M").unwrap(), "1518-11-01 23:00", "%Y-%m-%d %H:%M").unwrap(),
guard_id: 10, guard_id: 10,
}, },
Record::Wake { Record::Wake {
time: NaiveDateTime::parse_from_str( time: NaiveDateTime::parse_from_str(
"1518-11-01 00:10", "%Y-%m-%d %H:%M").unwrap(), "1518-11-02 00:05", "%Y-%m-%d %H:%M").unwrap(),
}, },
]), expected); ]), expected);
} }