LeetCode/java/redistribute-characters-to-make-all-strings-equal.java

class Solution {
    public boolean makeEqual(String[] words) {
        int[] counters = new int[26];

        for (String w : words) {
            for (int i = 0; i < w.length(); ++i) {
                ++counters[w.charAt(i) - 'a'];
            }
        }

        int N = words.length;
        for (int count : counters) {
            if (count % N != 0) {
                return false;
            }
        }

        return true;
    }
}