Submission #731009

#	Time	Username	Problem	Language	Result	Execution time	Memory
731009		NintsiChkhaidze	Rice Hub (IOI11_ricehub)	C++17	100 / 100	19 ms	3280 KiB

ricehub

#include <bits/stdc++.h>
#define ll long long
using namespace std;
#include "ricehub.h"

ll p[100005],a[100005];
ll cost(int l,int r){
	int mid = (l + r)>>1;
	ll s1 = (mid - l + 1)*a[mid] - p[mid] + p[l - 1];
	ll s2 = p[r] - p[mid] - (r - mid)*a[mid];
	return s1+s2;
}
int besthub(int N, int R, int X[], ll B){
	for (int i=0;i<N;i++){
		a[i] = X[i];
		p[i] = X[i];
		if (i) p[i] += p[i - 1];
	}
	int r = 0,ans=0;
	for (int i = 0; i < N; i++){
		while (r + 1 < N && cost(i,r + 1) <= B) ++r;
		ans=max(ans,r-i+1);
	}
	return ans;
}

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