This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define int long long
using namespace std;
const int N=1e6,M=2e3;
int a[100005],b[100005],xx[N*4+10];
main()
{
int n,m;
cin>>n>>m;
map<int,int>mp;
for(int i=0;i<n;i++)
cin>>a[i];
for(int i=0;i<n;i++)
cin>>b[i];
for(int i=0;i<n;i++)
xx[a[i]-b[i]+(int)2e6]++;
int neg=0,pos=0;
for(int i=0;i<=2e6;i++)
neg+=xx[i];
for(int i=2e6+1;i<=4e6;i++)
pos+=xx[i];
int ans=0,anss=1e18;
for(int i=0;i<n;i++)
ans+=abs(a[i]-b[i]);
anss=min(abs(ans),anss);
for(int j=2e6-1;j>=0;j--){
ans-=pos;
ans+=neg;
anss=min(anss,abs(ans));
int neww=(int)2e6-j;
neww=(int)2e6+neww;
neg+=xx[neww];
pos-=xx[neww];
}
ans=0,pos=0,neg=0;
for(int i=0;i<n;i++)
ans+=abs(a[i]-b[i]);
for(int i=0;i<2e6;i++)
neg+=xx[i];
for(int i=2e6;i<=4e6;i++)
pos+=xx[i];
for(int j=2e6+1;j<=4e6;j++){
ans-=neg;
ans+=pos;
anss=min(anss,abs(ans));
int neww=j-(int)2e6;
neww=(int)2e6-neww;
neg-=xx[neww];
pos+=xx[neww];
}
cout<<anss<<endl;
return 0;
}
Compilation message (stderr)
simfonija.cpp:10:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
10 | main()
| ^~~~
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