p3673.cpp

大概POJ上50道比较难的题的代码

#include <iostream>
using namespace std;
int a,b,s(0),t;
int main(){
    cin>>a>>b;
    while(a>0){
        t=b;
        while(t>0){
            s+=(t%10)*(a%10);
            t/=10;
        }    
        a/=10;
    }
    cout<<s<<endl;
    system("pause");
}