然后这样70
```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,m,a[50],sum,maxlen;
cin>>n;
for(int i=1;i<=n;i++)
{
cin>>m;
sum=maxlen=0;
for(int j=0;j<m;j++)
{
cin>>a[j];
sum+=a[j];
maxlen=max(maxlen,a[j]);
}
if(sum%4==0)
{
sum/=4;
if(maxlen>sum)
cout<<"no"<<endl;
else
cout<<"yes"<<endl;
}
else
cout<<"no"<<endl;
}
}
else
cout<<"no"<<endl;
}
}
```
数据够水的
by 野生小卒 @ 2017-05-19 10:30:15