22.md

Determine if Two Strings Are Close

bool closeStrings(std::string word1, std::string word2) {
        std::vector<int> freq1(26, 0);
        std::vector<int> freq2(26, 0);

        for (char ch : word1) {
            freq1[ch - 'a']++;
        }

        for (char ch : word2) {
            freq2[ch - 'a']++;
        }

        for (int i = 0; i < 26; i++) {
            if ((freq1[i] == 0 && freq2[i] != 0) || (freq1[i] != 0 && freq2[i] == 0)) {
                return false;
            }
        }

        std::sort(freq1.begin(), freq1.end());
        std::sort(freq2.begin(), freq2.end());

        for (int i = 0; i < 26; i++) {
            if (freq1[i] != freq2[i]) {
                return false;
            }
        }

        return true;
    }