[SW Expert Academy] 1983 조교의 성적 매기기 [Java]

[ 핵심풀이 ]

[ 핵심소스 ]

[ Java ]

import java.util.Arrays;
import java.util.Comparator;
import java.util.Scanner;

class student {
    double score;
    int index;

    student(double score, int index) {
        this.score = score;
        this.index = index;
    }
}

public class Solution {
    public static void main(String[] args) throws Throwable {
        Scanner sc = new Scanner(System.in);
        int tc = sc.nextInt();
 
        String result[] = { "A+", "A0", "A-", "B+", "B0", "B-", "C+", "C0", "C-", "D0"};

        for (int t = 1; t <= tc; t++) {
            int CLASS = sc.nextInt();
            int semi_class = CLASS/10;
            int index = sc.nextInt()-1;
			
            student st[] = new student[CLASS];
			
            for (int i = 0; i < CLASS; i++) {
                double MID = sc.nextDouble() / 100 * 35;
                double FINAL = sc.nextDouble() / 100 * 45;
                double TASK = sc.nextDouble() / 100 * 20;
                st[i] = new student(MID + FINAL + TASK, i);
			}
            Arrays.sort(st, new Comparator<student>() {
                public int compare(student o1, student o2) {
                    return o1.score > o2.score ? -1 : (o1.index >= o2.index ? 0 : 1);
                }
            });
            for(int i=0;i<CLASS;i++) {
                if (st[i].index == index) {
                    System.out.println("#"+t+" "+result[i/semi_class]);
                    break;
                }
            }
		}
        sc.close();
    }
}