Redistribute Characters to Make All Strings Equal

<-E 1897> Redistribute Characters to Make All Strings Equal

class Solution {
public:
    bool makeEqual(vector<string>& words) {
        int freq[26] = {0};

        for (auto word : words)
            for (auto c : word)
                freq[c - 'a']++;

        for (int i = 0; i < 26; i++)
            if (freq[i] && freq[i] % words.size() != 0)
                return false;

        return true;
    }
};