Submission #1236382

#	Time	Username	Problem	Language	Result	Execution time	Memory
1236382		alex_2008	Packing Biscuits (IOI20_biscuits)	C++20	0 / 100	1096 ms	328 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll count_tastiness(ll x, vector<ll> a) {
    int sm = 0;
    for (int i = 0; i < (int)a.size(); i++) {
        sm += (1 << i) * a[i];
    }
    while (!a.empty() && a.back() == 0) a.pop_back();
    int ans = 0;
    for (int i = 0; i <= sm / x; i++) {
        bool ch = true;
        vector <ll> b = a;
        for (int j = 1; j <= x; j++) {
            int cur = i;
            for (int w = (int)b.size() - 1; w >= 0; w--) {
                if (cur == 0) break;
                int k = min(cur >> w, (int)b[w]);
                cur -= k * (1 << w);
                b[w] -= k;
            }
            if (cur != 0) {
                ch = false;
                break;
            }
        }
        if (ch) ans++;
    }
    return ans;
}

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