```c
#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
int i,j,n,m,k,l,o,p;
j=0;m=0;k=1;
while (scanf("%d",&n)==1)
{
j++;
m+=n;
k=k*2;
}
cout<<k*m/2;
}
```
by 这是落古 @ 2018-07-18 11:01:35
用 long long 就好了
by 小兔宝宝 @ 2018-07-18 11:04:50
数开小了 ~~我才不会告诉你我一般开unsigned long long int呢~~
by _FILARET_ @ 2018-07-18 11:11:05
开long long可以过
by BEqueN @ 2018-07-18 15:21:33