100daysofcode/Day45.cpp at main · NamanJain795/100daysofcode · GitHub

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class Solution {
public:
    bool closeStrings(std::string word1, std::string word2) {
        vector<int> freq1(26, 0);
        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;
            }
        }

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

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

        return true;
    }
};