algorithms
코드포스 (codeforces)
코드포스 200B (codeforces 200B)
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코드포스 200B (codeforces 200B) 문제 풀이 및 코드 (description and code)
Problem - 200B - Codeforces
코드
import java.io.*;
public class CF200B {
static int n;
static int[] p = new int[101];
static String[] ins;
static double s = 0;
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
n = Integer.parseInt(br.readLine());
ins = br.readLine().split(" ");
for (int i = 0; i < n; i++) {
p[i] = Integer.parseInt(ins[i]);
s += p[i] / 100.;
}
double ans = (s * 100) / (double)n;
bw.write(ans + "\n");
bw.flush();bw.close();
}
}