prep-coding/leetcode/RotateString.java at master · tushar-sharma/prep-coding · GitHub

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class Solution {
    public boolean rotateString(String s, String goal) {

        if (s.length() != goal.length()){
            return false;
        }

        if (s.equals(goal)){
            return true;
        }

        return (s + s).contains(goal);
    }

    public boolean rotateStringBrute(String s, String goal) {

        if (s.length() != goal.length()){
            return false;
        }

        if (s.equals(goal)){
            return true;
        }

        int n = s.length();
        String result = "";

        for (int i = 0 ; i < n ; i++) {
            result = s.substring(i) + s.substring(0, i);
            if (result.equals(goal)){
                return true;
            }

        }
        return false;
    }
}