[백준] 5704 팬그램 - Implementation / Java

• 문제 링크

https://www.acmicpc.net/problem/5704

 

• 풀이 코드

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.HashSet;
import java.util.Set;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        StringBuilder sb = new StringBuilder();

        Set<Character> set = new HashSet<>();
        String s;
        while ((s = br.readLine()).charAt(0) != '*') {
            for (char c : s.toCharArray()) if (c != ' ') set.add(c);
            sb.append(set.size() == 26 ? "Y\n" : "N\n");
            set.clear();
        }

        bw.write(sb.toString());
        bw.flush();
    }

}