新手求问，用while语句怎么写

Question

#include <iostream>

using namespace std;

int main()
{
     double n,max,min;

    while(cin>>n)
{
    if(n>=max)
        {max=n;
            cout<<max<<"the largest so far"<<endl;}
    if(n<=min)
        {min=n;
                cout<<min<<"the smallest so far"<<endl;}
    if(n<=max&&n>=min)
    cout<<n<<endl;


}

    return 0;
}

这里输入的第一个数怎么处理

Answer 1

#include <iostream>

using namespace std;

int main()
{
int first = 1;
     double n,max,min;

    while(cin>>n)
{
if (first) { max = min = n; first = 0; }
    if(n>=max)
        {max=n;
            cout<<max<<"the largest so far"<<endl;}
    if(n<=min)
        {min=n;
                cout<<min<<"the smallest so far"<<endl;}
    if(n<=max&&n>=min)
    cout<<n<<endl;


}

    return 0;
}