pat乙级-1017 a除以b (20)

#include <cstring>
using namespace std;

int main()
{
    string A,Q;
    int B ,R=0,i=0,j=0;
    cin>>A>>B;
    int temp=0;
    if(A.length()>1000||B<=0||B>9)
    {
        return 0;
    }
    while(A[i]!='