How to implement bubble sorting from big to small in C language

#How to implement bubble sorting from large to small in C language?

C language bubble sorting method:

First select the first number as the largest and then compare the numbers in pairs to get the difference between the two. The maximum value between them is compared in sequence. The specific code implementation is as follows:

#include <iostream>
#include <time.h>
using namespace std;
void srandData(int *, int );//产生随机数的函数
void bubbleSort(int *, int );//冒泡排序具体实现函数
void swap(int *, int *);//两个数字实现交换的函数
void display(int *, int );//在屏幕输出结果函数
int main()
{
const int N = 10;//定义常数
int arr[N];//定义数组
srandData(arr, N);
bubbleSort(arr, N);
display(arr, N);
return 0;
}
void srandData(int *a, int n)
{
srand(time(NULL));
for(int i = 0; i < n; i++)
{
a[i] = rand() % 50;//取50以下的数字
cout << a[i] << " ";
}
cout << endl;
}
void swap(int *b, int *c)
{
int temp = *c;
*c = *b;
*b = temp;
}
void bubbleSort(int *a, int n)
{
for(int i = 0; i < n; i++)
{
for(int j = 0; j < n - i - 1; j++)
{
if(a[j] < a[j + 1])
{
swap(&a[j], &a[j + 1]);//两者交换
}
}
}
}
void display(int *d, int n)
{
for(int i = 0; i < n; i++)
{
cout << d[i] << " ";
}
cout << endl;
}

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