#include<bits/stdc++.h>
using namespace std;
long long L,R,k,prefsum[100005],mid,pas,ans,a[1000005],r,l,b,x[100005],middl,cur,cur1,curans;
int besthub(int r,long long l,int x[],long long b ){
cin>>r>>l;
for(k=0;k<r;k++)
cin>>x[k];
cin>>b;
for(k=1;k<=r;k++){
a[k]=x[k-1]; prefsum[k]=prefsum[k-1]+a[k];
}
for(k=1;k<=r;k++){
// cout<<k<<"+"<<endl;
L=k; R=r;
while(L<=R){
mid=(L+R)/2;
l=k;//cout<<1;
if((mid-l+1)%2==1){
middl=(mid-l+1)/2+1;
cur=prefsum[mid]-prefsum[middl]-a[k]*(mid-middl);
cur+=a[k]*(middl-k)-prefsum[k];
curans=mid-k+1;
}
else{
middl=(mid-l+1)/2+1;
cur=prefsum[mid]-prefsum[middl]-a[k]*(mid-middl);
cur+=a[k]*(middl-k)-prefsum[k];
middl=(mid-l+1)/2;
cur1=prefsum[mid]-prefsum[middl]-a[k]*(mid-middl);
cur1+=a[k]*(middl-k)-prefsum[k];
cur=min(cur,cur1);
curans=mid-k+1;
}
if(cur<=b) {
L=mid+1; pas=curans;
}
else R=mid-1;
}
ans=max(ans,pas);
}
return ans;
}
Compilation message
/tmp/ccxuNX1M.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
