1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253
class Encrypter {    #key_to_value = new Map<string, string>();    #in_to_out = new Map<string, string>();    #out_to_in = new Map<string, Set<string>>();    #dictionary: Set<string>;    constructor(keys: string[], values: string[], dictionary: string[]) {        this.#dictionary = new Set(dictionary);        for (let i = 0; i < keys.length; i++) {            this.#key_to_value.set(keys[i], values[i]);        }
        for (const word of dictionary) {            try {                const encoded = this.encrypt(word);                let set = this.#out_to_in.get(encoded);                if (!set) {                    set = new Set<string>();                    this.#out_to_in.set(encoded, set);                }                set.add(word);            } catch {                continue;            }        }    }
    encrypt(word1: string): string {        const cached = this.#in_to_out.get(word1);        if (cached) return cached;        const res = word1            .split("")            .map((w) => {                const value = this.#key_to_value.get(w);                if (!value) {                    throw new Error("unknown key");                }                return value;            })            .join("");        this.#in_to_out.set(word1, res);        return res;    }
    decrypt(word2: string): number {        const wordinput = this.#out_to_in.get(word2);        return wordinput            ? [...wordinput].filter((w) => this.#dictionary.has(w)).length            : 0;    }}
export default Encrypter;