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day6.js
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try {
input = document.getElementsByTagName("pre")[0].innerText;
} catch (e) {
input = getLiteralInput();
}
input = input.split("\n\n").filter(e => e.length).map(e => e.trim());
function day6(input) {
let response = input.map(group => {
return Array.from(group.replace(/\n/g, '').trim())
.reduce((t, e) => {
if (!t.includes(e)) t.push(e);
return t
}, []);
}).reduce((t, e) => {
return t + e.length
}, 0);
console.log(response);
return response;
}
function day6_2(input) {
let uniqueLetters = input.map(group => {
let people = group.split('\n');
let letters = '';
let first = people[0];
for (let l of first) {
let c = people.length;
for (let p of people) {
if (p.includes(l)) c--;
else break;
}
if (c == 0) letters += l;
}
return letters;
});
let response = uniqueLetters.reduce((t, e) => t + e.length, 0)
console.log(response);
return response;
}
day6(input);
day6_2(input);
function getLiteralInput() {
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