[백준] 10179 쿠폰 - Implementation / Java

• 문제 링크

https://www.acmicpc.net/problem/10179

 

• 풀이 코드

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

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));

        int t = Integer.parseInt(br.readLine());
        while (t-- > 0) bw.write(String.format("$%.2f\n", Double.parseDouble(br.readLine()) * 0.8));

        bw.flush();
    }

}