14주차. 알파벳 찾기

10809. 알파벳 찾기

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

10809번: 알파벳 찾기

📌풀이

저번주와 비슷한 문제.

152ms, 16296kb

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int[] arr = new int[26];
        Arrays.fill(arr, -1);
        String str = br.readLine();
        for(int i = 0; i < str.length(); i++){
            char c = str.charAt(i);
            if(arr[c - 97] != -1) continue;
            arr[c - 97] = i;
        }
        Arrays.stream(arr).forEach(n -> System.out.print(n + " "));
    }
}