Submission #133027

#	Time	Username	Problem	Language	Result	Execution time	Memory
133027		tinjyu	Rice Hub (IOI11_ricehub)	C++14	100 / 100	20 ms	2640 KiB

ricehub

#include "ricehub.h"
#include <iostream>
using namespace std;
long long int sum[100005],a[100005][2];
int besthub(int R, int L, int X[], long long B)
{
	long long int now=0;
	sum[0]=X[0];
	for(int i=1;i<R;i++)
	{
		sum[i]=sum[i-1]+X[i];
	}
	long long int s=0,e=0;
	long long int ans=0;
	while(s<=e && e<R)
	{
		long long int mid=(s+e)/2;
		long long int tmp=(X[mid]*(mid-s)-(sum[mid-1]-sum[s-1])+(sum[e]-sum[mid])-X[mid]*(e-mid));
		if(tmp<=B)
		{
			ans=max(ans,e-s+1);
			e++;
		}
		else s++;
	}
  	return ans;
}

Compilation message (stderr)

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:7:16: warning: unused variable 'now' [-Wunused-variable]
  long long int now=0;
                ^~~

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