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| class Encrypter {
private:
unordered_map<char, string> k2v;
unordered_map<string, int> encrypted_dict;
public:
Encrypter(vector<char>& keys, vector<string>& values, vector<string>& dictionary) {
for (int i = 0; i < keys.size(); ++i)
k2v[keys[i]] = values[i];
unordered_map<string, string> dict;
for (string &s : dictionary) {
if (dict.count(s)) {
++encrypted_dict[dict[s]];
} else {
string encryptedStr = "";
for (char c : s) encryptedStr += k2v[c];
++encrypted_dict[encryptedStr];
dict[s] = encryptedStr;
}
}
}
string encrypt(string word1) {
string ans;
for (char &c : word1) ans += k2v[c];
return ans;
}
int decrypt(string word2) {
return encrypted_dict[word2];
}
};
|