제출 #348355

#제출 시각아이디문제언어결과실행 시간메모리
348355dennisstar비스킷 담기 (IOI20_biscuits)C++17
12 / 100
7 ms364 KiB
#include <bits/stdc++.h>
#include "biscuits.h"

using namespace std;
using ll = long long;

const int MX = 62;

ll count_tastiness(ll x, vector<ll> a) {
	vector<ll> D(MX, 1);
	a.resize(MX);
	for (int i=1; i<MX; i++) {
		a[i]=(a[i]<<i)+a[i-1];
		ll n=(1e18);
		for (int j=i-1; j>=0; j--) {
			n=min(n, a[j]);
			if ((x<<j)<=n) D[i]+=D[j], n-=(x<<j);
		}
	}
	return D.back();
}
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