Finished day 3. Annoyed at rusts hashset intersection function.
This commit is contained in:
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11 changed files with 559 additions and 15 deletions
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|
||||
CqMpwccgvvgLnvLbMMRRjBNHzjmGmwNHlmlN
|
||||
gLqqvpCDfVDrTfVW
|
||||
CNMDGNPPNJCGbLnTffsTLT
|
||||
tcBBRlrBdQrtmtWFjjbnrTjjFbjr
|
||||
cTQQhcmvcBRcwDMVDZZPPCJh
|
||||
mBCdgPLgZmLfGmfvGhtRQJWjtjQGQhtN
|
||||
pMwrVwbwHMsqcTWQhQWzggTTWp
|
||||
nnSMwrlrsmSZgvvmDd
|
||||
WNSzpCzNzqzNdmqrRHrrLHFrJH
|
||||
MtPfvnGMPnMcbnRtDHTRFFDrmJRQ
|
||||
PcBsfPPHPGGfcSzZjNjpNZZdCs
|
||||
mDCZVLDhWVSDCRvGtsGgGRHl
|
||||
JjPwPNdcPnjPdcwNltHzzGmgGJzQJJRQ
|
||||
dqfjnNmwmbmWrZMbMrThhB
|
||||
qtBpNZFpBGFNfZNPmZPmQmHrmPPPTz
|
||||
LLwJLvDvlWWLHdwDrVcCRcDVzzVVcV
|
||||
sMMwvgjnMvjvnlsvNFBqfGHFqHGjtSpS
|
||||
MmZZsFgwJTdTMdgmZdZRgFhDHhPQPPnRPhCrHhnnrPDD
|
||||
fBcLlNNpQCDLDJJC
|
||||
jSbWWlWpBpclWlWpNWlVBbWVdgwswFJmFJsGtdMggZFGbZwd
|
||||
CMVQVMLLMFGRCMWQttnqqwQwhqsm
|
||||
pJzlczSpPpPgmsqNhmPGDstq
|
||||
gZgTccZGGpzdpjclGRVMVRFRMFvHRLRdLf
|
||||
FMWMSBtStZqZWQtFtScWWSZmHPVJJVHwwlTgmgbzQwbwTJ
|
||||
jhGLhdjNjsLvLsshzHJPVdVmmbzHzdHJ
|
||||
jvDRNjnDNGRCzjLzZZpqnrFBSccWrMcB
|
||||
zggmthDDghHvtrdgrVWfSBRwTHLWHwsBWw
|
||||
PGGjpCjQnJQGJcJnnQpjFWVSsZWVLRZLBcsWSZBRWS
|
||||
FGQlpnJCbqqGGRCjjnlCqGMtdNmmmvdNmmmzvhbrmgMz
|
||||
TstvBTdgBhqTsdTcPlfCSrNMrNnrCNNSNNgp
|
||||
HwLQwQDZzDjnDbmMhNSnmm
|
||||
FZLVzLLQHRRzwWHjdPlJctlJtlsllhRs
|
||||
fBtPsMDDswHvBmmVdBlSBRcGGnhVhg
|
||||
LWJbrpFqpTLTTjqqNWlhnRGGSnhrcSdlRlsh
|
||||
JWNbbpjJzTbNNNJNJMvmvfZHvzDsHDCsZw
|
||||
LPGnPNLtwGhFFnJPfsqpVVszzpsP
|
||||
TcWdvlrcWddggrDBDDdDMmWzRJqfVQZqmsfZsRQzZfZzQJ
|
||||
TldWrMrDdlDCDdMTcwSLVCSShLNSwHjhGF
|
||||
JGsWWWQsJmPwQWbBPmccbcbqFfMMpFDVCDFVFVCDqqfFwD
|
||||
ZtLnlvLnNtvLndnCmfMVSmVCClfpVp
|
||||
zTzZtjnZNLNmZvdtznntHHZJbBRGBRQWcJGbGsbsJRPQWT
|
||||
MLmlMTPtQtMNlhbqbbqhflBB
|
||||
rcrvjpSvScbRbBvbDBPG
|
||||
ZZJzSHpzPrJzHFmMVMFmHCLNtV
|
||||
|
|
@ -1,15 +1,58 @@
|
|||
use crate::utilities::*;
|
||||
|
||||
pub fn part1() -> usize {
|
||||
0
|
||||
pub fn part1(input: &[Rucksack]) -> usize {
|
||||
input
|
||||
.iter()
|
||||
.map(|rucksack| {
|
||||
let intersection: Vec<&char> = rucksack.0.intersection(&rucksack.1).collect();
|
||||
assert!(intersection.len() == 1);
|
||||
intersection[0]
|
||||
})
|
||||
.map(find_char_score)
|
||||
.sum()
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use std::collections::HashSet;
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_part1() {
|
||||
assert_eq!(part1(), 0);
|
||||
let input = vec![
|
||||
Rucksack(
|
||||
HashSet::from(['v', 'J', 'r', 'w', 'p', 'W', 't', 'w', 'J', 'g', 'W', 'r']),
|
||||
HashSet::from(['h', 'c', 's', 'F', 'M', 'M', 'f', 'F', 'F', 'h', 'F', 'p']),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from([
|
||||
'j', 'q', 'H', 'R', 'N', 'q', 'R', 'j', 'q', 'z', 'j', 'G', 'D', 'L', 'G', 'L',
|
||||
]),
|
||||
HashSet::from([
|
||||
'r', 's', 'F', 'M', 'f', 'F', 'Z', 'S', 'r', 'L', 'r', 'F', 'Z', 's', 'S', 'L',
|
||||
]),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['P', 'm', 'm', 'd', 'z', 'q', 'P', 'r', 'V']),
|
||||
HashSet::from(['v', 'P', 'w', 'w', 'T', 'W', 'B', 'w', 'g']),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from([
|
||||
'w', 'M', 'q', 'v', 'L', 'M', 'Z', 'H', 'h', 'H', 'M', 'v', 'w', 'L', 'H',
|
||||
]),
|
||||
HashSet::from([
|
||||
'j', 'b', 'v', 'c', 'j', 'n', 'n', 'S', 'B', 'n', 'v', 'T', 'Q', 'F', 'n',
|
||||
]),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['t', 't', 'g', 'J', 't', 'R', 'G', 'J']),
|
||||
HashSet::from(['Q', 'c', 't', 'T', 'Z', 't', 'Z', 'T']),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['C', 'r', 'Z', 's', 'J', 's', 'P', 'P', 'Z', 's', 'G', 'z']),
|
||||
HashSet::from(['w', 'w', 's', 'L', 'w', 'L', 'm', 'p', 'w', 'M', 'D', 'w']),
|
||||
),
|
||||
];
|
||||
assert_eq!(part1(&input), 157);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,15 +1,89 @@
|
|||
use crate::utilities::*;
|
||||
use std::collections::HashSet;
|
||||
|
||||
pub fn part2() -> usize {
|
||||
0
|
||||
struct Group(HashSet<char>, HashSet<char>, HashSet<char>);
|
||||
|
||||
pub fn part2(input: &[Rucksack]) -> usize {
|
||||
seperate_groups(input)
|
||||
.iter()
|
||||
.map(|group| {
|
||||
//manual implementation of intersection because doing chained intersections is annoying...
|
||||
group
|
||||
.0
|
||||
.iter()
|
||||
.filter(|c| group.1.contains(c))
|
||||
.filter(|c| group.2.contains(c))
|
||||
.map(|x| x.to_owned())
|
||||
.next()
|
||||
.unwrap()
|
||||
}).map(|c| find_char_score(&c)).sum()
|
||||
}
|
||||
|
||||
fn seperate_groups(input: &[Rucksack]) -> Vec<Group> {
|
||||
let mut output: Vec<Group> = Vec::new();
|
||||
for group in input.chunks_exact(3) {
|
||||
output.push(Group(
|
||||
group[0]
|
||||
.0
|
||||
.union(&group[0].1)
|
||||
.map(|x| x.to_owned())
|
||||
.collect(),
|
||||
group[1]
|
||||
.0
|
||||
.union(&group[1].1)
|
||||
.map(|x| x.to_owned())
|
||||
.collect(),
|
||||
group[2]
|
||||
.0
|
||||
.union(&group[2].1)
|
||||
.map(|x| x.to_owned())
|
||||
.collect(),
|
||||
));
|
||||
}
|
||||
output
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use std::collections::HashSet;
|
||||
|
||||
#[test]
|
||||
fn test_part2() {
|
||||
assert_eq!(part2(), 0);
|
||||
let input = vec![
|
||||
Rucksack(
|
||||
HashSet::from(['v', 'J', 'r', 'w', 'p', 'W', 't', 'w', 'J', 'g', 'W', 'r']),
|
||||
HashSet::from(['h', 'c', 's', 'F', 'M', 'M', 'f', 'F', 'F', 'h', 'F', 'p']),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from([
|
||||
'j', 'q', 'H', 'R', 'N', 'q', 'R', 'j', 'q', 'z', 'j', 'G', 'D', 'L', 'G', 'L',
|
||||
]),
|
||||
HashSet::from([
|
||||
'r', 's', 'F', 'M', 'f', 'F', 'Z', 'S', 'r', 'L', 'r', 'F', 'Z', 's', 'S', 'L',
|
||||
]),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['P', 'm', 'm', 'd', 'z', 'q', 'P', 'r', 'V']),
|
||||
HashSet::from(['v', 'P', 'w', 'w', 'T', 'W', 'B', 'w', 'g']),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from([
|
||||
'w', 'M', 'q', 'v', 'L', 'M', 'Z', 'H', 'h', 'H', 'M', 'v', 'w', 'L', 'H',
|
||||
]),
|
||||
HashSet::from([
|
||||
'j', 'b', 'v', 'c', 'j', 'n', 'n', 'S', 'B', 'n', 'v', 'T', 'Q', 'F', 'n',
|
||||
]),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['t', 't', 'g', 'J', 't', 'R', 'G', 'J']),
|
||||
HashSet::from(['Q', 'c', 't', 'T', 'Z', 't', 'Z', 'T']),
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['C', 'r', 'Z', 's', 'J', 's', 'P', 'P', 'Z', 's', 'G', 'z']),
|
||||
HashSet::from(['w', 'w', 's', 'L', 'w', 'L', 'm', 'p', 'w', 'M', 'D', 'w']),
|
||||
),
|
||||
];
|
||||
assert_eq!(part2(&input), 70);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,8 +7,8 @@ fn main() {
|
|||
let _structured_input = utilities::parse(_input);
|
||||
|
||||
println!("Part One");
|
||||
println!("Result: {}", part1::part1());
|
||||
println!("Result: {}", part1::part1(&_structured_input));
|
||||
|
||||
println!("Part Two");
|
||||
println!("Result: {}", part2::part2());
|
||||
println!("Result: {}", part2::part2(&_structured_input));
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,27 @@
|
|||
pub fn parse(input: &str) -> usize {
|
||||
println!("{}", input);
|
||||
0
|
||||
use std::collections::HashSet;
|
||||
#[derive(Debug, PartialEq, Eq)]
|
||||
pub struct Rucksack(pub HashSet<char>, pub HashSet<char>);
|
||||
|
||||
pub fn parse(input: &str) -> Vec<Rucksack> {
|
||||
input
|
||||
.lines()
|
||||
.map(|line| {
|
||||
let (first, second) = line.split_at(line.len() / 2);
|
||||
Rucksack(first.chars().collect(), second.chars().collect())
|
||||
})
|
||||
.collect()
|
||||
}
|
||||
|
||||
pub fn find_char_score(input: &char) -> usize {
|
||||
static CHARS: [char; 52] = [
|
||||
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
|
||||
's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
|
||||
'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
|
||||
];
|
||||
CHARS
|
||||
.iter()
|
||||
.position(|character| character == input)
|
||||
.unwrap()+1
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
|
|
@ -9,9 +30,50 @@ mod tests {
|
|||
|
||||
#[test]
|
||||
fn test_parse() {
|
||||
let input =
|
||||
"test"
|
||||
;
|
||||
assert_eq!(parse(input), 0);
|
||||
let input = "vJrwpWtwJgWrhcsFMMfFFhFp
|
||||
jqHRNqRjqzjGDLGLrsFMfFZSrLrFZsSL
|
||||
PmmdzqPrVvPwwTWBwg
|
||||
wMqvLMZHhHMvwLHjbvcjnnSBnvTQFn
|
||||
ttgJtRGJQctTZtZT
|
||||
CrZsJsPPZsGzwwsLwLmpwMDw";
|
||||
assert_eq!(
|
||||
parse(input),
|
||||
vec![
|
||||
Rucksack(
|
||||
HashSet::from(['v', 'J', 'r', 'w', 'p', 'W', 't', 'w', 'J', 'g', 'W', 'r']),
|
||||
HashSet::from(['h', 'c', 's', 'F', 'M', 'M', 'f', 'F', 'F', 'h', 'F', 'p'])
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from([
|
||||
'j', 'q', 'H', 'R', 'N', 'q', 'R', 'j', 'q', 'z', 'j', 'G', 'D', 'L', 'G',
|
||||
'L'
|
||||
]),
|
||||
HashSet::from([
|
||||
'r', 's', 'F', 'M', 'f', 'F', 'Z', 'S', 'r', 'L', 'r', 'F', 'Z', 's', 'S',
|
||||
'L'
|
||||
])
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['P', 'm', 'm', 'd', 'z', 'q', 'P', 'r', 'V']),
|
||||
HashSet::from(['v', 'P', 'w', 'w', 'T', 'W', 'B', 'w', 'g'])
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from([
|
||||
'w', 'M', 'q', 'v', 'L', 'M', 'Z', 'H', 'h', 'H', 'M', 'v', 'w', 'L', 'H',
|
||||
]),
|
||||
HashSet::from([
|
||||
'j', 'b', 'v', 'c', 'j', 'n', 'n', 'S', 'B', 'n', 'v', 'T', 'Q', 'F', 'n',
|
||||
])
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['t', 't', 'g', 'J', 't', 'R', 'G', 'J',]),
|
||||
HashSet::from(['Q', 'c', 't', 'T', 'Z', 't', 'Z', 'T',])
|
||||
),
|
||||
Rucksack(
|
||||
HashSet::from(['C', 'r', 'Z', 's', 'J', 's', 'P', 'P', 'Z', 's', 'G', 'z',]),
|
||||
HashSet::from(['w', 'w', 's', 'L', 'w', 'L', 'm', 'p', 'w', 'M', 'D', 'w',])
|
||||
),
|
||||
]
|
||||
);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue