输入3个整数a、b、c，按从大到小的顺序输出。要求通过C++指针实现

#include <stdio.h>

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

int main(){
    int a, b, c;
    scanf("%d%d%d", &a, &b, &c);
    sort(&a, &b, &c);
    printf("%d %d %d", a, b, c);
    return 0;
}