Baekjoon 1546 : 평균 구하기

문제

https://www.acmicpc.net/problem/1546

문제풀이

public class baekjoon1546 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int A[] = new int[N];

        for (int i = 0; i < N; i++) {
            A[i] = sc.nextInt();
        }

        long sum = 0;
        long max = 0;
        for (int i = 0; i < N; i++) {
            if (A[i] > max) max=A[i];
            sum = sum + A[i];
        }

        System.out.println(sum * 100.0 / max / N);
    }
}