Submission #805244

#	Time	Username	Problem	Language	Result	Execution time	Memory
805244		PixelCat	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1080 ms	752 KiB

biscuits

#include "biscuits.h"

#ifdef NYAOWO
#include "grader.cpp"
#endif

#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
#define Forr(i, a, b) for(int i = a; i >= b; i--)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define sz(x) ((int)x.size())
#define eb emplace_back
#define int LL
using namespace std;
using i32 = int32_t;
using LL = long long;
using pii = pair<int, int>;

const int MAXK = 60;

int a[MAXK + 10];

long long count_tastiness(long long x, std::vector<long long> _a) {
    memset(a, 0, sizeof(a));
    int k = sz(_a);
    For(i, 0, k - 1) {
        a[i] = _a[i];
    }
    int ans = 0;
    vector<pair<int, pii>> v;
    v.eb(0, pii(-1, 0));
    while(sz(v)) {
        int owo = v.back().F;
        int hibit = v.back().S.F;
        int cur = v.back().S.S;
        v.pop_back();
        For(i, hibit + 1, k - 1) {
            cur = cur / 2 + a[i];
            if(owo & (1ll << i)) cur -= x;
            if(i > hibit && cur >= x) {
                v.eb(owo | (1ll << i), pii(i, cur - x));
            }
        }
        cur /= 2;
        cur /= x;
        // cerr << owo << " " << cur << "\n";
        ans += cur + 1;
    }
    // cerr << "\n";
    return ans;
}

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