用C++编写一个代码，输入3个整数a、b、c，按从大到小的顺序输出。要求通过指针实现

#include <stdio.h>

void sort(int *a, int *b, int *c);

int main() {
    int a, b, c;
    printf("请输入3个整数：\n");
    scanf("%d %d %d", &a, &b, &c);
    sort(&a, &b, &c);
    printf("%d %d %d", a, b, c);
    return 0;
}

void sort(int *a, int *b, int *c) {
    int tmp;
    if (*a < *b) {
        tmp = *a;
        *a = *b;
        *b = tmp;
    }
    if (*a < *c) {
        tmp = *a;
        *a = *c;
        *c = tmp;
    }
    if (*b < *c) {
        tmp = *b;
        *b = *c;
        *c = tmp;
    }
}