C++程序习题-使用变量引用从大到小输出数据[1.13]

#include <iostream>
using namespace std;

void sort(int &,int &,int &);//进行排序

int main()
{
    int inum1,inum2,inum3;
    cin >> inum1 >> inum2 >> inum3;
    sort(inum1,inum2,inum3);
    cout << inum1 << " " << inum2 << " " << inum3 << endl;
    system("pause");
    return 0;
}

void sort(int &num1,int &num2,int &num3)
{
    int temp;
    if (num1 > num2)
    {
        temp = num1;
        num1 = num2;
        num2 = temp;
    }
    
    if(num3 < num1)
    {
        temp = num1;
        num1 = num3;
        num3 = temp;
    }
    else if(num3 < num2)
    {
         temp = num2;
         num2 = num3;
         num3 = temp;
    }
    else
    {
        ;
    }
}