class Solution {
    public boolean isSubsequence(String s, String t) {
        char[] arr = s.toCharArray();
        int start = 0;

        for (char c : arr) {
            boolean found = false;

            for (int i = start; i < t.length(); i++) {
                if (c == t.charAt(i)) {
                    found = true;
                    start = i + 1;
                    break;
                }
            }

            if (!found) return false;
        }

        return true;
    }
}