Tinkering with code and algorithms for fun
Day 1 - Report RepairDay 2 - Password PhilosophyDay 3 - Toboggan TrajectoryDay 5 - Binary BoardingDay 6 - Custom CustomsDay 7: Handy HaversacksDay 8 - Handheld HaltingDay 9 - Encoding ErrorDay 10 - Adapter ArrayDay 11 - Seating SystemDay 12 - Rain RiskDay 13 - Shuttle SearchDay 14 - Docking DataDay 15 - Rambunctious RecitationDay 16 - Ticket TranslationDay 17 - Conway CubesDay 18 - Operation OrderDay 19 - Monster Messages (part one)
Day 4 - Passport Processing
answer_1 = {
let valid = 0;
for (const [passport, fields] of input) {
if (fields.length === 8 || (fields.length === 7 && passport.cid === ""))
valid++;
}
return valid;
}
answer_2 = {
const input = input2;
let valid = 0,
invalid = 0;
let filtered_valid = [];
let filtered_invalid = [];
const pushInvalid = passport => {
invalid++;
filtered_invalid.push(passport);
};
const pushValid = passport => {
valid++;
filtered_valid.push(passport);
};
const correctECL = ["amb", "blu", "brn", "gry", "grn", "hzl", "oth"];
const correctHCL = /#[0-9a-fAF]{6}/;
const correctPID = /[0-9]{9}/;
for (const [passport, fields] of input) {
// All fields have to be filled, except for Country ID
let byr = +passport.byr; // four digits; at least 1920 and at most 2002.
byr =
passport.byr.length === 4 && byr >= 1920 && byr <= 2002 ? true : false;
let iyr = +passport.iyr; // four digits; at least 2010 and at most 2020.
iyr =
passport.iyr.length === 4 && iyr >= 2010 && iyr <= 2020 ? true : false;
let eyr = +passport.eyr; // four digits; at least 2020 and at most 2030.
eyr =
passport.eyr.length === 4 && eyr >= 2020 && eyr <= 2030 ? true : false;
let hgt = false;
if (passport.hgt.endsWith("cm")) {
hgt = +passport.hgt.slice(0, Math.max(0, passport.hgt.length - 2));
hgt = hgt >= 150 && hgt <= 193 ? true : false;
} else if (passport.hgt.endsWith("in")) {
hgt = +passport.hgt.slice(0, Math.max(0, passport.hgt.length - 2));
hgt = hgt >= 59 && hgt <= 76 ? true : false;
} else hgt = false;
const hcl = correctHCL.test(passport.hcl);
const ecl = correctECL.includes(passport.ecl);
const pid = passport.pid.length === 9 && correctPID.test(passport.pid);
if (!byr || !iyr || !eyr || !hgt || !hcl || !ecl || !pid || false) {
pushInvalid(passport);
} else {
pushValid(passport);
}
}
return { filtered_valid, filtered_invalid };
}
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