{"header":{"message":"Day 6 solution","description":null,"timestamp":"2020-12-23T21:18:23Z","authors":[{"email":"jeremy.list@youdo.co.nz","name":"Jeremy List"}]},"hash":"W6AJ2K3UVW6IX3H42I6C2VYM2QCK2YV2EMNVP73F426LAEOD2AWAC","authors":[],"deps":{"hashes":[["W6AJ2K3UVW6IX3H42I6C2VYM2QCK2YV2EMNVP73F426LAEOD2AWAC","Day 6 solution"],["AA",null],["B527MN663VOX7PY6BCLAAU62WDPTI4JTVLNUP2UR74S4KJYKT4HQC","Solve day 1 for 2020"]],"deps":["B527MN663VOX7PY6BCLAAU62WDPTI4JTVLNUP2UR74S4KJYKT4HQC"],"known":[]},"hunks":[{"FileAdd":{"meta":{"basename":"day6.rs","metadata":0},"context":[{"change":2,"pos":17}],"contents":[{"Add":"use std::collections::HashSet;"},{"Add":""},{"Add":"struct GroupedLines {"},{"Add":" inner: I,"},{"Add":"}"},{"Add":""},{"Add":"impl GroupedLines {"},{"Add":" fn new(inner: I) -> Self {"},{"Add":" GroupedLines { inner: inner }"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"impl, S: AsRef> Iterator for GroupedLines {"},{"Add":" type Item = Vec;"},{"Add":" fn next(&mut self) -> Option {"},{"Add":" let mut r = Vec::new();"},{"Add":" loop {"},{"Add":" match self.inner.next() {"},{"Add":" Some(l) => {"},{"Add":" if l.as_ref().len() == 0 {"},{"Add":" break;"},{"Add":" } else {"},{"Add":" r.push(String::from(l.as_ref()));"},{"Add":" }"},{"Add":" },"},{"Add":" None => break,"},{"Add":" }"},{"Add":" };"},{"Add":" if r.len() == 0 {"},{"Add":" None"},{"Add":" } else {"},{"Add":" Some(r)"},{"Add":" }"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"fn any_checked(input: Vec) -> HashSet {"},{"Add":" input.iter().flat_map(|l| l.chars()).collect()"},{"Add":"}"},{"Add":""},{"Add":"fn all_checked(input: Vec) -> HashSet {"},{"Add":" let mut i = input.iter();"},{"Add":" match i.next() {"},{"Add":" None => HashSet::new(),"},{"Add":" Some(l0) => {"},{"Add":" let mut r: HashSet = l0.chars().collect();"},{"Add":" for l in i {"},{"Add":" r = r.intersection(&l.chars().collect()).map(Clone::clone).collect();"},{"Add":" }"},{"Add":" r"},{"Add":" },"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"fn main() {"},{"Add":" use std::env;"},{"Add":" use std::io::BufRead;"},{"Add":" let args: Vec<_> = env::args().collect();"},{"Add":" let counts: usize = GroupedLines::new("},{"Add":" std::io::BufReader::new(std::fs::File::open(&args[1]).unwrap()).lines()"},{"Add":" .map(Result::unwrap)"},{"Add":" ).map(match args[2].as_ref() {"},{"Add":" \"any\" => any_checked,"},{"Add":" \"all\" => all_checked,"},{"Add":" _ => panic!(\"No such aggregator\"),"},{"Add":" })"},{"Add":" .map(|c| c.len())"},{"Add":" .sum();"},{"Add":" println!(\"{}\", counts);"},{"Add":"}"},{"Add":""}]}}],"owner":"quickdudley","repo":"adventofcode","token":"C7GAA2rZxeuq0STgXCrjRZDPAthbn2Hxwr1uCELOClA=","login":null}

…

Dependencies

Change contents