C++一次过

#include <iostream>

using namespace std;

int main()
{
    int n;
    scanf("%d", &n);
    
    int t, maxp = -1, minp = 101, tm;
    long long res = 0l;
    for(int i = 0; i < n; i++) 
    {
        scanf("%d", &t);
        res += t;
        if (maxp < t) maxp = t;
        if (minp > t) minp = t;
        tm = maxp + minp;
        
        if (i >= 2) 
        {
            printf("%.2f\n", (double)(res-tm)/(i-1));
        }
    }
    
    
    return 0;
}

Java死活只有一对4错5MLEhttps://www.luogu.com.cn/record/194847381

import java.io.*;

public class Main {
    public static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    public static BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
    public static PrintWriter ou = new PrintWriter(new OutputStreamWriter(System.out));
    public static void main(String[] args) throws IOException {
        int n = Integer.parseInt(in.readLine());
        String str[] = in.readLine().split("[ ]+");

        long res = 0;
        int max = -1, min = 101, tm, t;
        for (int i = 0; i < n; i++){
            t = Integer.parseInt(str[i]);
            res += t;
            if (max < t) max = t;
            if (min > t) min = t;
            tm = max + min;

            if (i >= 2)
            {
                out.write(String.format("%.2f\n", (double)(res-tm)/(i - 1)));
            }
        }
        out.flush();
        in.close();
        out.close();
    }
}