关于cin.get()函数的问题

#include <iostream>
using namespace std;
void main()
{
    char a[10], b[10];
    cout << "请输入字符序列a:";
    cin.get(a, 10);
    cout << "请输入字符序列b:";
    cin.get(b, 10);
    char *pa, *pb, *p;
    pa = a; pb = b; p = NULL;
    while (*pa == *pb)
    {
        pa++; pb++;
    }
    if (int(*pa) > int(*pb))
        p = a;
    else p = b;
    cout << "序列a：" << a << "\n序列b：" << b << endl;
    cout << "其中较大的序列为" << p;
}