# include<bits/stdc++.h>
using namespace std;
long long r,l,b,n,pos[100005],w,sum[100005],mid,shua,ans,sn,sm,ri;
int besthub(int r,int l,int x[],int b)
{
//cin>>r>>l>>b;
for (long long i=1; i<=r; i++)
{
pos[i]=x[i-1];
w+=pos[i];
sum[i]=w;
}
l=1;
ri=r;
while (l<=ri)
{
mid=(l+ri)/2;
for (long long i=1; i<=ri-mid+1; i++)
{
shua=(i+i+mid)/2;
sn=sum[shua-1]-sum[i-1];
sm=sum[i+mid-1]-sum[shua];
if ((pos[shua]*(shua-i)-sn)+sm-(pos[shua]*(i+mid-1-shua))<=b)
{
ans=mid;
l=mid+1;
}
else
{
ri=mid-1;
}
}
}
return ans;
}
Compilation message
/tmp/ccJw2pzM.o: In function `main':
grader.cpp:(.text.startup+0x92): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status
