Tinkering with code and algorithms for fun
input = (await FileAttachment("Avent of Code 2020 - Day 02.txt").text())
.trim()
.split('\n')
.map(line => {
// still too lazy to learn how to regex
const t = line.split(" ");
const range = t[0].split("-");
return [+range[0], +range[1], t[1][0], t.slice(2).join("")];
})
validPasswords = {
let validPasswords = 0;
for (const data of input) {
const pw = data[3];
const cc = data[2].charCodeAt(0);
let charCount = 0;
for (let i = 0; i < pw.length; i++) {
if (cc === pw.charCodeAt(i)) charCount++;
}
if (charCount >= data[0] && charCount <= data[1]) validPasswords++;
}
return validPasswords;
}
validPasswords2 = {
let validPasswords = 0;
for (const data of input) {
const pw = data[3];
const cc = data[2].charCodeAt(0);
let charCount = 0;
if (cc === pw.charCodeAt(data[0] - 1)) charCount++;
if (cc === pw.charCodeAt(data[1] - 1)) charCount++;
if (charCount === 1) validPasswords++;
}
return validPasswords;
}
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