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WA,为什么啊,真的和读入有关吗?#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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