제출 #1133591

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1133591		alterio	비스킷 담기 (IOI20_biscuits)	C++20	0 / 100	1096 ms	320 KiB

biscuits

#include <bits/stdc++.h>
#include "biscuits.h"

#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast,unroll-loops")

using namespace std;

#define ll long long

ll count_tastiness(ll x, vector<ll> a) {
	ll ans = 0, sum = 0;
	int n = a.size();
	for (ll i = 0; i < n; i++) sum += (1LL << i) * a[i];
	for (ll y = 0; y <= sum / x; y++) {
		vector<ll> c = a;
		bool pos = 1;
		for (int j = 0; j < x; j++) {
			ll cur = 0;
			for (int l = c.size() - 1; l >= 0; l--) {
				while (c[l] > 0 && cur + (1LL << l) <= y) {
					c[l]--;
					cur += (1LL << l);
				}
			}
			if (cur != y) {
				pos = 0;
				break;
			}
		}
		ans += pos;
	}
	return ans;
}

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