201903-1 小中大

输入输出样例

样例1

输入

3
-1 2 4

输出

4 2 -1

样例2

输入

4
-2 -1 3 4

输出

4 1 -2

题解一

模拟。100分。

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(reader.readLine().trim());
        int max;
        int min;
        String[] strs = reader.readLine().trim().split(" ");
        int num1 = Integer.parseInt(strs[0]);
        int num2 = Integer.parseInt(strs[n - 1]);
        max = Math.max(num1, num2);
        min = Math.min(num1, num2);
        if (n % 2 == 1) {
            System.out.println(max + " " + Integer.parseInt(strs[n / 2]) + " " + min);
        } else {
            num1 = Integer.parseInt(strs[n / 2 - 1]);
            num2 = Integer.parseInt(strs[n / 2]);
            if ((num1 + num2) % 2 == 0) {
                System.out.println(max + " " + (num1 + num2) / 2 + " " + min);
            } else {
                System.out.printf("%d %.1f %d", max, (num1 + num2) / 2.0, min);
            }
        }
    }
}