编程：键盘输入10个数（可能为整形、浮点型、双精度型及其字符类型），分别利用函数重载和函数模板，求出其中的最大值和最小值。

函数重载：

#include <iostream>
#include <string>
using namespace std;

int max(int a[], int n)
{
    int res = a[0];
    for (int i = 1; i < n; i++)
    {
        if (a[i] > res)
            res = a[i];
    }
    return res;
}

double max(double a[], int n)
{
    double res = a[0];
    for (int i = 1; i < n; i++)
    {
        if (a[i] > res)
            res = a[i];
    }
    return res;
}

char max(char a[], int n)
{
    char res = a[0];
    for (int i = 1; i < n; i++)
    {
        if (a[i] > res)
            res = a[i];
    }
    return res;
}

template <typename T>
T min(T a[], int n)
{
    T res = a[0];
    for (int i = 1; i < n; i++)
    {
        if (a[i] < res)
            res = a[i];
    }
    return res;
}

int main()
{
    int a[10];
    double b[10];
    char c[10];
    for (int i = 0; i < 10; i++)
    {
        cin >> a[i];
        b[i] = a[i];
        c[i] = a[i];
    }
    cout << "max int: " << max(a, 10) << endl;
    cout << "max double: " << max(b, 10) << endl;
    cout << "max char: " << max(c, 10) << endl;
    cout << "min int: " << min(a, 10) << endl;
    cout << "min double: " << min(b, 10) << endl;
    cout << "min char: " << min(c, 10) << endl;
    return 0;
}

函数模板：

#include <iostream>
#include <string>
using namespace std;

template <typename T>
T max(T a[], int n)
{
    T res = a[0];
    for (int i = 1; i < n; i++)
    {
        if (a[i] > res)
            res = a[i];
    }
    return res;
}

template <typename T>
T min(T a[], int n)
{
    T res = a[0];
    for (int i = 1; i < n; i++)
    {
        if (a[i] < res)
            res = a[i];
    }
    return res;
}

int main()
{
    int a[10];
    double b[10];
    char c[10];
    for (int i = 0; i < 10; i++)
    {
        cin >> a[i];
        b[i] = a[i];
        c[i] = a[i];
    }
    cout << "max int: " << max(a, 10) << endl;
    cout << "max double: " << max(b, 10) << endl;
    cout << "max char: " << max(c, 10) << endl;
    cout << "min int: " << min(a, 10) << endl;
    cout << "min double: " << min(b, 10) << endl;
    cout << "min char: " << min(c, 10) << endl;
    return 0;
}