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。

函数重载版本：

#include <iostream>
using namespace std;

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

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

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

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

int getMin(int arr[], int n) {
    int min = arr[0];
    for (int i = 1; i < n; i++) {
        if (arr[i] < min) {
            min = arr[i];
        }
    }
    return min;
}

float getMin(float arr[], int n) {
    float min = arr[0];
    for (int i = 1; i < n; i++) {
        if (arr[i] < min) {
            min = arr[i];
        }
    }
    return min;
}

double getMin(double arr[], int n) {
    double min = arr[0];
    for (int i = 1; i < n; i++) {
        if (arr[i] < min) {
            min = arr[i];
        }
    }
    return min;
}

char getMin(char arr[], int n) {
    char min = arr[0];
    for (int i = 1; i < n; i++) {
        if (arr[i] < min) {
            min = arr[i];
        }
    }
    return min;
}

int main() {
    const int N = 10;
    int arr1[N];
    float arr2[N];
    double arr3[N];
    char arr4[N];

    cout << "请输入" << N << "个整数：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr1[i];
    }
    cout << "最大值为：" << getMax(arr1, N) << endl;
    cout << "最小值为：" << getMin(arr1, N) << endl;

    cout << "请输入" << N << "个浮点数：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr2[i];
    }
    cout << "最大值为：" << getMax(arr2, N) << endl;
    cout << "最小值为：" << getMin(arr2, N) << endl;

    cout << "请输入" << N << "个双精度数：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr3[i];
    }
    cout << "最大值为：" << getMax(arr3, N) << endl;
    cout << "最小值为：" << getMin(arr3, N) << endl;

    cout << "请输入" << N << "个字符：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr4[i];
    }
    cout << "最大值为：" << getMax(arr4, N) << endl;
    cout << "最小值为：" << getMin(arr4, N) << endl;

    return 0;
}

函数模板版本：

#include <iostream>
using namespace std;

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

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

int main() {
    const int N = 10;
    int arr1[N];
    float arr2[N];
    double arr3[N];
    char arr4[N];

    cout << "请输入" << N << "个整数：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr1[i];
    }
    cout << "最大值为：" << getMax(arr1, N) << endl;
    cout << "最小值为：" << getMin(arr1, N) << endl;

    cout << "请输入" << N << "个浮点数：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr2[i];
    }
    cout << "最大值为：" << getMax(arr2, N) << endl;
    cout << "最小值为：" << getMin(arr2, N) << endl;

    cout << "请输入" << N << "个双精度数：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr3[i];
    }
    cout << "最大值为：" << getMax(arr3, N) << endl;
    cout << "最小值为：" << getMin(arr3, N) << endl;

    cout << "请输入" << N << "个字符：" << endl;
    for (int i = 0; i < N; i++) {
        cin >> arr4[i];
    }
    cout << "最大值为：" << getMax(arr4, N) << endl;
    cout << "最小值为：" << getMin(arr4, N) << endl;

    return 0;
}