Submission #80562

#	Time	Username	Problem	Language	Result	Execution time	Memory
80562		arman_ferdous	Rice Hub (IOI11_ricehub)	C++17	17 / 100	261 ms	3988 KiB

ricehub

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

typedef long long ll;
const int N = 1e5+10;
int n; ll arr[N], sum[N], cap;

ll calc(ll i, ll j, ll x) {
	ll p = lower_bound(arr,arr+n,x) - arr; p++;
	ll ret = x * (p - i) - (sum[p-1] - sum[i-1]);
	ret = ret + sum[j] - sum[p-1] - x * (j - p + 1);
	return ret;
}

bool can(int k) {
	for(int i = k; i <= n; i++) {
		ll med = (sum[i] - sum[i-k]) / k;
		for(ll m = med-5; m <= med+5; m++)
			if(calc(i-k+1,i,m) <= cap) return true;
	}
	return false;
}

int besthub(int R, int L, int X[], ll B) {
	n = R, cap = B; sum[0] = 0;
	for(int i = 0; i < R; i++) arr[i] = X[i];
	for(int i = 1; i <= R; i++) sum[i] = sum[i-1] + X[i-1];

	int lo = 1, hi = R, ret = 0;
	while(lo <= hi) {
		int mid = (lo + hi) >> 1;
		if(can(mid)) ret = mid, lo = mid+1;
		else hi = mid-1;
	}
	return ret;
}

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