swap函数

//输入2个数按大到小的顺序排列
#include<iostream>
using namespace std;

int main()
{
    void swap(int *p1, int *p2);
    int a, b;
    int *pointer_1, *pointer_2;

    cin>>a>>b;

    pointer_1 = &a;
    pointer_2 = &b;
    
    if(a<b)
    swap(pointer_1,pointer_2);

    cout<<"max="<<a<<"\tmin="<<b<<endl;
    
    return 0;
}

void swap(int *p1, int *p2)
{
    int temp;
    temp = *p1;        //交换a,b的值
    *p1 = *p2;        
    *p2 = temp;        



}