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Re:WA,为什么啊,真的和读入有关吗?

Posted by yufuwan1 at 2008-06-07 00:04:21 on Problem 2389
In Reply To:WA,为什么啊,真的和读入有关吗? Posted by:blackwing at 2007-11-30 00:05:18
> #include <iostream>
> #include <string>
> using namespace std;
> 
> int main()
> {
>     string a,b;
>     int lena,lenb,lenc;
>     int c[100]={0};
>     cin>>a>>b;
>     lena=a.size();
>     lenb=b.size();
>     for(int i=0;i<lena;++i)
>     {
>         for(int j=0;j<lenb;++j)
>         {
>             c[i+j]+=(a[i]-48)*(b[j]-48);
>             c[i+j+1]+=c[i+j]/10;
>             c[i+j]%=10;
>         }
>     }
>         
>     c[lena+lenb-1]==0?lenc=lena+lenb-1:lenc=lena+lenb;
>     for(int m=lenc-1;m>=0;--m)cout<<c[m];
> }
>     

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