Check if Strings Can be Made Equal With Operations II

class Solution {
    public boolean checkStrings(String s1, String s2) {
        int n = s1.length();
        int freqeven[] = new int[26];
        int freqodd[] = new int[26];
        // T.C - O(n)
        // S.C. - O(26)
        for(int i=0; i<n; i++) {
            if(i%2==0) {
                freqeven[s1.charAt(i)-'a']++;
                freqeven[s2.charAt(i)-'a']--;
            } else {
                freqodd[s1.charAt(i)-'a']++;
                freqodd[s2.charAt(i)-'a']--;
            }
        }
        for(int i=0; i<26; i++) {
            if(freqeven[i]!=0 || freqodd[i]!=0) {
                return false;
            }
        }
        return true;
    }
}