67 lines
1.4 KiB
TypeScript
67 lines
1.4 KiB
TypeScript
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let txt = await Deno.readTextFile("input.txt");
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txt = txt.trim();
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const lst = txt.split("\r\n").map((x) =>
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x.split(" ")
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.filter((x) => x.length > 0))
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.map(x => {
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console.log(x);
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return x;
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})
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.map((x) => [parseInt(x[0]), parseInt(x[1])]);
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const left = lst.map((x) => x[0]);
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const right = lst.map((x) => x[1]);
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// Part 2
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//Counter class
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class Counter {
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private _data: Map<number, number> = new Map<number, number>();
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private _total: number = 0;
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constructor(data: number[]) {
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data.forEach(x => {
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this.set(x);
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});
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}
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get total(): number {
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return this._total;
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}
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get count(): Map<number, number> {
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return this._data;
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}
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get(key: number): number {
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return this._data.get(key) ?? 0;
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}
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set(key: number): void {
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this._total++;
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const count = this._data.get(key) ?? 0;
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this._data.set(key, count + 1);
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}
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}
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/**
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* get the similarity score between two arrays
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*
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* @param a
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* @param b
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*/
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function calcSimilarityScore(a: number[], b: number[]): number {
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const counterA = new Counter(a);
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const counterB = new Counter(b);
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let score = 0;
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counterA.count.forEach((v, k) => {
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const bv = counterB.get(k);
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score += bv * v * k;
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});
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return score;
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}
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const score = calcSimilarityScore(left, right);
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console.log(score);
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