Submission #806661

#	Time	Username	Problem	Language	Result	Execution time	Memory
806661		PixelCat	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1126 ms	1051004 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];
int val[MAXK + 10];

long long count_tastiness(long long x, std::vector<long long> _a) {
    int k = sz(_a);

    memset(a, 0, sizeof(a));
    memset(val, 0, sizeof(val));
    
    For(i, 0, k - 1) {
        a[i] = _a[i];
        val[i] = a[i] << i;
    }
    k = 60;
    For(i, 1, k) {
        val[i] += val[i - 1];
    }

    int lim = val[k] / x;
    vector<int> v;
    v.eb(val[k]);
    For(i, 0, k - 1) {
        if((1ll << i) > lim) break;
        int n = sz(v);
        For(j, 0, n - 1) {
            int y = v[j];
            if(val[k] - y + (x << i) <= val[i]) {
                v.eb(y - (x << i));
            } else {
                break;
            }
        }
    }
    return sz(v);
}
 

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