Submission #306867

#	Time	Username	Problem	Language	Result	Execution time	Memory
306867		VEGAnn	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1087 ms	384 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
#define sz(x) ((int)x.size())
#define PB push_back
using namespace std;
typedef long long ll;
vector<ll> b;
ll ans, glob_x;
 
void rec(int ps){
    if (ps == sz(b)){
        ans++;
        return;
    }
 
    ll mem = (b[ps]) / 2;
 
    if (ps + 1 < sz(b)) {
        b[ps + 1] += mem;
    }
 
    rec(ps + 1);
 
    if (ps + 1 < sz(b)){
        b[ps + 1] -= mem;
    }
 
    if (b[ps] >= glob_x) {
        mem = (b[ps] - glob_x) / 2;
 
        if (ps + 1 < sz(b)) {
            b[ps + 1] += mem;
        }
 
        rec(ps + 1);
 
        if (ps + 1 < sz(b)){
            b[ps + 1] -= mem;
        }
    }
}
 
long long count_tastiness(long long x, std::vector<long long> a) {
    glob_x = x;
 
    b = a;
 
    while (sz(b) < 60) b.PB(0);
 
    ans = 0;
 
    rec(0);
 
	return ans;
}

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