[소프티어] 성적 평균 자바 풀이 레벨3 왜 3레벨인지 모르겠는 문제.https://softeer.ai/practice/6294/history?questionType=ALGORITHM Softeer - 현대자동차그룹 SW인재확보플랫폼 softeer.ai 핵심코드String ff = String.format("%.2f", sum/(b-a+1)); bw.write(String.valueOf(ff)+"\n"); 전체코드import java.io.*;import java.util.*;public class Main { public static void main(String[] args) throws IOException { BufferedReader br =..