```cpp
#include<bits/stdc++.h>
using namespace std;
int n,m,a[5001],b[5001],minl[5001],minn=1000000000,sum,ans,w[5001];
int main(){
cin>>n;
for(int i=1;i<=n;i++)cin>>a[i];
cin>>m;
for(int i=1;i<=m;i++)cin>>b[i];
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(i==n&&w[j]==0){
minn=abs(a[n]-b[m]);
}
else{
ans=abs(a[i]-b[j]);
if(ans<minn){
minl[i]=ans;
minn=ans;
w[j]++;
}
}
}
minn=1000000000;
}
for(int i=1;i<=n;i++){
sum+=minl[i];
}
cout<<sum;
return 0;
}
```
by _Gojo_ @ 2022-07-15 15:34:51
10分(~~无奈~~)
by _Gojo_ @ 2022-07-15 15:35:27