[백준 10809번 - java] 알파벳 찾기

https://www.acmicpc.net/problem/10809

 

내 답안

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String str = scan.next();

		for (int i=97; i<123; i++) {
			System.out.printf("%d ", str.indexOf(i));
		}
	}
}

 

배열 사용해서 풀기

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        String str = s.next();
        char[] str_arr = str.toCharArray();
        int[] result = new int[26];

        char[] alphabet = new char[26];

        for (int i = 0; i < alphabet.length; i++) {
            alphabet[i] = (char) ('a' + i);
            for (int j = 0; j < str_arr.length; j++) {
                if (alphabet[i] == str_arr[j]) {
                    result[i] = j;
                    break;
                } else {
                    result[i] = -1;
                }
            }
            System.out.print(result[i] + " ");
        }
    }
}

indexOf와 배열 사용해서 풀기

-> 아직..