luogu_orz @ 2023-07-09 14:25:33
为什么只有20分？？？？
by VitrelosTia @ 2023-07-09 14:26:42
因为你不看数据范围
by luogu_orz @ 2023-07-09 14:27:33
#include<bits/stdc++.h>
using namespace std;
unsigned long long a,b;
int main(){
cin>>a>>b;
if(a==0||b==0)cout<<0;
cout<<a*b;
}by luogu_orz @ 2023-07-09 14:28:02
好吧，高精度走起