sub_10 @ 2024-10-24 09:54:39
#include<bits/stdc++.h>
using namespace std;
#define int long long
int a[114514];
int m,n;
int ans;
int judge(int x){
int l,r,mid;
l=0;
r=m;
while(l<r){
mid=(l+r)/2;
if(a[mid]<=x)
l=mid+1;
else
r=mid;
}
int ans1=abs(a[r]-x);
int ans2=abs(a[r-1]-x);
if(x<=a[1])
return a[1]-x;
else
return min(ans1,ans2);
}
signed main(){
//ios_base::sync_with_stdio(0);
//cin.tie(0);
//cout.tie(0);
cin>>m>>n;
for(int i=1;i<=m;i++)
cin>>a[i];
sort(a+1,a+n+1);
for(int i=1,x;i<=n;i++){
cin>>x;
ans+=judge(x);
}
cout<<ans;
return 0;
}
by wusongxu @ 2024-10-24 17:49:06
sort(a+1,a+n+1)改成“sort(a+1,a+m+1)”