제출 #1128282

#제출 시각아이디문제언어결과실행 시간메모리
1128282ChuanChen쌀 창고 (IOI11_ricehub)C++20
68 / 100
12 ms1352 KiB
#include<bits/stdc++.h>
#include "ricehub.h"

using namespace std;

const int lim = 1e5+5;
typedef long long ll;

int x[lim], sv[lim], ans;
ll bucket;

bool valid(int l, int r){
	int mid = (l+r)/2;
	ll cost = sv[r]-sv[mid] - (r-mid)*x[mid] + (mid-l)*x[mid] - (sv[mid-1]-sv[l-1]);

	return cost <= bucket;
}

int besthub(int R, int L, int X[], long long B){
	bucket = B;
	for(int i = 1; i <= R; i++){
		x[i] = X[i-1];
		sv[i] = sv[i-1] + x[i];
	}

	int r = 1;
	for(int l = 1; l <= R; l++){

		while(r <= R && valid(l, r)){
			ans = max(r-l+1, ans);
			r++;
		}
	}

	return ans;
}
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