[LintCode] Compare Strings

public boolean compareStrings(String A, String B) {
        // write your code here
        int[] count_A = new int[26];
        for(int i = 0; i < A.length(); i++)
            count_A[A.charAt(i)-'A']++;
        int[] count_B = new int[26];
        for(int i = 0; i < B.length(); i++)
            count_B[B.charAt(i)-'A']++;
        for(int i = 0 ; i < 26; i++) {
            if(count_A[i]<count_B[i])
                return false;
        }
        return true;
    }