20求教（可关

B2095 白细胞计数

blaze_42550w @ 2024-12-07 16:55:05

#include<bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    double a[10000],s=0;
    cin>>n;
    double min=100000000;
    double max=0;
    for(int i=1;i<=n;i++)//输入 
    {
        cin>>a[i];
        if(a[i]>max)//最大
        {
            max=a[i];
        }
        if(a[i]<min)//最小 
        {
            min=a[i];
        }
    }
    for(int i=1;i<=n;i++)//总数 
    {
        if(a[i]!=max)
        {
            if(a[i]!=min)
            {
                s+=a[i];
            }
        }

    }
    s=s/(n-2);//平均值
    printf("%.2lf",s);
    double dd=(-1);
    for(int i=1;i<=n;i++)//最大误差 
    {
        if(a[i]!=max)
        {
            if(a[i]!=min)
            {
                if(a[i]>s)//大减小 
                {
                    if((a[i]-s)>=dd)
                    {
                        dd=(a[i]-s);
                    }
                }
                else
                {
                    if((s-a[i])>=dd)
                    {
                        dd=(s-a[i]);
                    }
                }
            }
        }

    }

    cout<<" ";
    printf("%.2lf",dd);
    return 0;
}

by What_is_Solution @ 2024-12-07 17:24:16

错的有点多，emm...自己写了一个，看看吧

by What_is_Solution @ 2024-12-07 17:25:14

#include <iostream>
#include <iomanip>
#include <algorithm>
#include <vector>
#include <cmath>
int main() {
    int n;
    std::cin >> n;
    std::vector<double> nums(n);
    for (int i = 0; i < n; ++i) {
        std::cin >> nums[i];
    }
    std::sort(nums.begin(), nums.end());

    double sum = 0;
    for (int i = 1; i < n - 1; ++i) {
        sum += nums[i];
    }
    double avg = sum / (n - 2);

    double maxDiff = 0;
    for (int i = 1; i < n - 1; ++i) {
        double diff = std::fabs(nums[i] - avg);
        maxDiff = std::max(maxDiff, diff);
    }
    std::cout << std::fixed << std::setprecision(2) << avg << " " << maxDiff << std::endl;

    return 0;
}

by What_is_Solution @ 2024-12-07 17:25:47

(算改进的吧)。。。

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