Submission #1133592

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133592		alterio	Packing Biscuits (IOI20_biscuits)	C++20	0 / 100	1095 ms	328 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--) {
				ll diff = y - cur;
				ll times = diff / (1LL << l);
				times = min(times, c[l]);
				c[l] -= times;
				cur += times * (1LL << l);
			}
			if (cur != y) {
				pos = 0;
				break;
			}
		}
		ans += pos;
	}
	return ans;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23