Submission #1107640

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107640		Lincito_31	Rice Hub (IOI11_ricehub)	C++17	17 / 100	9 ms	3664 KiB

ricehub

#include "ricehub.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vll;
int besthub(int R, int L, int X[], long long B)
{
  vll psum(R+1);
  psum[0]=0;
  psum[1]=X[0];
  for(int i=2;i<=R;i++){
    psum[i]=psum[i-1]+X[i-1];
  }
  int iz=0,de=0;
  int can=1;
  bool xd=false;
  while(iz<R && !xd){
    de=max(de,iz);
    int mid=(iz+de)/2;
    ll sum=X[mid]*(mid-iz)-(psum[mid]-psum[iz]);
    sum+=psum[de+1]-psum[mid+1]-X[mid]*(de-mid);
    while(sum<=B){
        de++;
        if(de>=R){
            xd=true;
            break;
        }
      sum=X[mid]*(mid-iz)-(psum[mid]-psum[iz]);
      sum+=psum[de+1]-psum[mid+1]-X[mid]*(de-mid);
    }
    can=max(can,de-iz);
    //cout << iz << " " << de << endl;
    iz++;
  }
  return can;
}

• Subtask 1: 17 / 17
• Subtask 2: 0 / 25
• Subtask 3: 0 / 26
• Subtask 4: 0 / 32