인프런 커뮤니티 질문&답변

import java.util.Scanner;

public class Main {
    public int getDistance(char[] word, int length, int idx, char ch) {
        int i = 1;

        if (word[idx] == ch)
            return (0);

        while (idx - i >= 0 && idx + i < length - 1){
            if (word[idx - i] == ch || word[idx + i] == ch)
                break;
            else
                i++;
        }
        return (i);
    }
    public String solution(String input, char ch) {
        char[] word = input.toCharArray();
        int length = word.length;
        StringBuilder answer = new StringBuilder();

        for (int i = 0; i < length; i++){
            answer.append(getDistance(word, length, i, ch));
            answer.append(' ');
        }
        answer.deleteCharAt(length * 2 - 1);
        return (answer.toString());
    }
    public static void main(String[] args) {
        Main T = new Main();
        Scanner kb = new Scanner(System.in);
        System.out.println(T.solution(kb.next(), kb.next().charAt(0)));
    }
}


왜 틀렸는지 모르겠습니다.