C++ 函数不返回数组中输入的最高值和最低值

此函数无法准确返回数组中输入的最高值和最低值。我不确定我为程序输入了什么代码来执行此操作。此程序需要返回输入数组的所有元素的平均值（平均部分工作正常），并在输入数组的所有值中查找最高值和最低值。请帮忙

#include <iostream>
using namespace std;
float temptotal = 0;
float averagetemp = 0;
float temperatures[50];
float average(int);
void highest(int);
void lowest(int);
int main()
{
int days = 0;
cout << "Enter the number of days: ";
cin >> days;
if (days > 50)
{
    cout << "You may only enter temperatures for 50 days." << endl;
    return 0;
}
average(days);
highest(days);
lowest(days);
}
float average(int days)
{
    for (int i = 1; i <= days; i++)
    {
        cout << "Enter the temperature for day number " << i << ": ";
        cin >> temperatures[i];
        temptotal += temperatures[i];
    }
        averagetemp = temptotal / days;
        cout << "The average temperature is: " << averagetemp << endl;
        return averagetemp;
}
void highest(int days)
{
    int count;
    int highest;
    highest = temperatures[50];
    for (count = 1; count < days; count++)
    {
        if (temperatures[count] > highest)
            highest = temperatures[count];
        cout << "The highest temperature is: " << highest << endl;
    }
}
void lowest(int days)
{
    int count;
    int lowest;
    lowest = temperatures[50];
    for (count = 1; count < days; count++)
    {
        if (temperatures[count] < lowest)
            lowest = temperatures[count];
        cout << "The lowest temperature is: " << lowest << endl;
    }
}

#包括
使用名称空间std；
浮点数=0；
浮动平均温度=0；
浮子温度[50]；
浮动平均（int）；
无效最高值（int）；
无效最低值（int）；
int main（）
{
整数天=0；
不能>天；
如果（天数>50天）
{
库特
数组索引以0开头
将cout语句置于for循环之外
数组索引从0开始，但循环从1开始。例如，对于超过天的循环，这将在整个范围内迭代：

for (int i = 0; i < days; i++)

for（int i=0；i
数组从0到n-1进行索引，其中
n
是数组中条目的总数。循环中的计数从1开始，而应从0开始。如果用户输入50个值，您将拥有越界访问权限

更正应为：

for (int i = 0; i < days; i++)

cout << "Enter the temperature for day number " << i+1 << ": ";

此函数

float average(int days)
{
    for (int i = 1; i <= days; i++)
    {
        cout << "Enter the temperature for day number " << i << ": ";
        cin >> temperatures[i];
        temptotal += temperatures[i];
//... 

或

这是错误的

函数可以像函数定义那样编写

void highest( int days )
{
    int highest = temperatures[0];

    for ( int count = 1; count < days; count++ )
    {
        if ( highest < temperatures[count] ) highest = temperatures[count];
    }

    cout << "The highest temperature is: " << highest << endl;
}

函数“highest”的更好版本：

void highest(int days)
{
    if (days < 1)
    {
        cout << "No temperatures" << endl;
    }

    double highest = temperatures[0];

    for (int count = 1; count < days; count++)
    {
        if (temperatures[count] > highest)
        {
            highest = temperatures[count];
        }
    }

    cout << "The highest temperature is: " << temperatures[highest_index] << endl;
}

void最高值（整数天）
{
如果（天数<1）
{
cout数组索引从0开始，而不是1。您可能希望从
最高=温度[0]；
开始。使用
温度[50]
是未定义的。
float average(int days)
{
    for (int i = 0; i < days; i++)
    {
        cout << "Enter the temperature for day number " << i + 1 << ": ";
        cin >> temperatures[i];
        temptotal += temperatures[i];
//... 

highest = temperatures[50];

void highest( int days )
{
    int highest = temperatures[0];

    for ( int count = 1; count < days; count++ )
    {
        if ( highest < temperatures[count] ) highest = temperatures[count];
    }

    cout << "The highest temperature is: " << highest << endl;
}

#include <algorithm>

//...

void highest( int days )
{

    cout << "The highest temperature is: " 
         << *std::max_element( temperatures, temperatures + days )
         << endl;
}

void highest(int days)
{
    if (days < 1)
    {
        cout << "No temperatures" << endl;
    }

    double highest = temperatures[0];

    for (int count = 1; count < days; count++)
    {
        if (temperatures[count] > highest)
        {
            highest = temperatures[count];
        }
    }

    cout << "The highest temperature is: " << temperatures[highest_index] << endl;
}