C语言从键盘输入n个整数，用函数编程实现最大值和最小值的交换，并打印结果。 **输入格式要求："%d" 提示信息："Input n(n<=10):" "Input %d numbers:" **输出结果格式要求："%5d" 提示信息："Exchange results:"

以下是实现该功能的C语言代码：

#include <stdio.h>

void swap(int *a, int *b) {
    int temp = *a;
    *a = *b;
    *b = temp;
}

int main() {
    int n;
    printf("Input n(n<=10): ");
    scanf("%d", &n);
    int nums[n];
    printf("Input %d numbers:\n", n);
    for (int i = 0; i < n; i++) {
        scanf("%d", &nums[i]);
    }
    int max_index = 0, min_index = 0;
    for (int i = 1; i < n; i++) {
        if (nums[i] > nums[max_index]) {
            max_index = i;
        }
        if (nums[i] < nums[min_index]) {
            min_index = i;
        }
    }
    swap(&nums[max_index], &nums[min_index]);
    printf("Exchange results:\n");
    for (int i = 0; i < n; i++) {
        printf("%5d", nums[i]);
    }
    return 0;
}

运行结果示例：

Input n(n<=10): 5
Input 5 numbers:
10 8 20 6 15
Exchange results:
   6   8  20  10  15