Submission #919084

#	Time	Username	Problem	Language	Result	Execution time	Memory
919084		Aiperiii	Rice Hub (IOI11_ricehub)	C++14	Compilation error	0 ms	0 KiB

ricehub

#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
int besthub(int R, int L, long long X[], long long B)
{
   vector <long long> sum;long long x=0;
   for(int i=0;i<R;i++){
      x+=X[i];sum.pb(x);
   }
   int l=0,r=R+2;
   while(l+1<r){
      int md=(l+r)/2;
      bool ok=0;
      for(int i=0;i<R;i++){
         long long x=0;
         int a=0,b=0;
         if(md%2==1){a=md/2;b=md/2;}
         else {a=md/2;b=md/2-1;}
         if(i>a-1 && i+b<R){
            int pos=i-1;
            long long d=0;
            if(pos>=0)d+=sum[pos];
            if(pos-a>=0)d-=sum[pos-a];
            x+=X[i]*a-d;
            pos=i+b;
            d=sum[pos]-sum[i];
            x+=d-X[i]*b;
            if(x<=B)ok=1;
         }
      }
      if(ok)l=md;
      else r=md;
   }
   return l;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccRD55LV.o: in function `main':
grader.cpp:(.text.startup+0xae): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status