c++ - Sphere online judge 发现我的代码是错误的，尽管它对数百个测试用例都是正确的

Question

问题是这样的..输入

n [the number of multiplications <= 1000]
l1 l2 [numbers to multiply (at most 10000 decimal digits each)]

Text grouped in [ ] does not appear in the input file.

输出

The results of multiplications.

我的代码..

#include<iostream>
#include<vector>
using namespace std;
int main()
{
    long int n,a,b,c,t;
    vector<long int> v(1000);
    vector<long int>::iterator p;
    cin>>n;
    t=n;
    p=v.begin();
    while(t>0)
    {
        cin>>a;
        cin>>b;
        *p=a;
        *(p+1)=b;
        p+=2;
        t--;
    }
    t=n;
    p=v.begin();
    while(t>0)
    {
        c= (*p) * (*(p+1));
        cout<<"\n"<<c;
        p+=2;
        t--;
    }
  return 0;
}

Answer 1

long int 不会容纳接近 10,000 位十进制数字。

−9,223,372,036,854,775,808 to +9,223,372,036,854,775,807