CSP认证2019-03-1-小中大-(Java)100分

小中大

问题描述
试题编号： 201903-1
试题名称： 小中大
时间限制： 1.0s
内存限制： 512.0MB


Java满分代码

Java代码

import java.util.Scanner;

public class Main {
    public static void main(String [] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] arr = new int[n];
        for(int i = 0;i < n;i++)
            arr[i] = sc.nextInt();

        if(arr[0] < arr[n-1]){ int temp = arr[0]; arr[0] = arr[n-1]; arr[n-1] = temp;}
        if(n % 2 == 0){
            int i = arr[n/2] + arr[n/2-1];
            if(i % 2 == 1)
                System.out.println(arr[0] + " " + i/2.0 + " " + arr[n-1]);
            else
                System.out.println(arr[0] + " " + i/2 + " " + arr[n-1]);
        } else
            System.out.println(arr[0] + " " + arr[n/2] + " " + arr[n-1]);
    }
}