Submission #653590

#	Time	Username	Problem	Language	Result	Execution time	Memory
653590		prvocislo	Uplifting Excursion (BOI22_vault)	C++17	5 / 100	5061 ms	2928 KiB

vault

#include <algorithm>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <string>
#include <vector>
typedef long long ll;
typedef long double ld;
using namespace std;

const int maxm = 55;
const int maxi = maxm * maxm * maxm;
//const int maxi = 10;
const int inf = 1e9 + 5;
int pf[2][maxi * 2];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int m;
    ll l;
    cin >> m >> l;
    m++;
    vector<ll> ok(2 * m + 1, 0ll);
    for (int i = -m + 1; i < m; i++)
    {
        cin >> ok[m + i];
    }
    fill(pf[0], pf[0] + maxi * 2, -inf);
    fill(pf[1], pf[1] + maxi * 2, -inf);
    pf[0][maxi] = 0;
    int cur = 0;
    for (int i = -m; i <= m; i++)
    {
        fill(pf[cur ^ 1], pf[cur ^ 1] + maxi * 2, -inf);
        for (int j = -maxi; j < maxi; j++) if (pf[cur][maxi + j] != -inf)
        {
            int cnt = 0;
            for (int d = j; cnt <= ok[m + i] && -maxi < d && d < maxi; d += i, cnt++)
            {
                pf[cur ^ 1][maxi + d] = max(pf[cur ^ 1][maxi + d], pf[cur][maxi + j] + cnt);
            }
        }
        cur ^= 1;
    }
    if (abs(l) >= maxi || pf[cur][maxi + l] == -inf)
    {
        cout << "impossible\n";
    }
    else
    {
        cout << pf[cur][maxi + l] << "\n";
    }
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 15
• Subtask 3-1: 0 / 10
• Subtask 3-2: 0 / 10
• Subtask 4-1: 0 / 10
• Subtask 4-2: 0 / 10
• Subtask 5-1: 0 / 10
• Subtask 5-2: 0 / 10
• Subtask 6-1: 0 / 10
• Subtask 6-2: 0 / 10