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Submission #708027

# Submission time Handle Problem Language Result Execution time Memory
708027 2023-03-10T19:40:38 Z Johann Uplifting Excursion (BOI22_vault) C++14
5 / 100
 5000 ms 16316 KB 
#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef pair<ll, ll> pii;
typedef vector<pii> vpii;
typedef vector<ll> vi;
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()

void resetPQ(priority_queue<pii, vpii> &q, int cut)
{
    priority_queue<pii, vpii> qq;
    while (!q.empty())
    {
        pii tmp = q.top();
        q.pop();
        if (tmp.second >= cut)
            qq.push(tmp);
    }
    swap(q, qq);
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);

    ll M, L;
    cin >> M >> L;
    vi A(2 * M + 1);
    for (int i = 0; i < sz(A); ++i)
        cin >> A[i];

    int MAXSIZE = accumulate(all(A), 0LL) * 2 * M;

    vi dp(MAXSIZE, -1);
    ll center = MAXSIZE / 2;
    dp[center] = A[M];
    for (int foo = 0; foo < 2; ++foo)
    {
        reverse(all(A)), reverse(all(dp));
        for (ll m = 1; m <= M; ++m)
        {
            ll maxNum = A[m + M];
            for (ll r = 0; r < m; ++r)
            {
                priority_queue<pii, vpii> q;
                for (int i = 0; m * i + r < sz(dp); ++i)
                {
                    int idx = m * i + r;
                    while (!q.empty() && q.top().second < idx - maxNum * m)
                        q.pop();
                    if (sz(q) > 2 * m)
                        resetPQ(q, idx - maxNum * m);
                    if (dp[idx] != -1)
                        q.push({dp[idx] - i, idx});
                    if (!q.empty())
                        dp[idx] = i + q.top().first;
                }
            }
        }
    }

    ll ans = -1;
    if (0 <= center + L && center + L < sz(dp))
        ans = dp[center + L];
    if (ans == -1)
        cout << "impossible\n";
    else
        cout << ans << "\n";

    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 520 ms 2288 KB Output is correct
6 Correct 666 ms 2388 KB Output is correct
7 Correct 151 ms 1108 KB Output is correct
8 Correct 466 ms 2260 KB Output is correct
9 Correct 2293 ms 4068 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 520 ms 2288 KB Output is correct
6 Correct 666 ms 2388 KB Output is correct
7 Correct 151 ms 1108 KB Output is correct
8 Correct 466 ms 2260 KB Output is correct
9 Correct 2293 ms 4068 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 506 ms 2284 KB Output is correct
17 Correct 663 ms 2448 KB Output is correct
18 Correct 125 ms 1108 KB Output is correct
19 Correct 477 ms 2312 KB Output is correct
20 Correct 2213 ms 4052 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Execution timed out 5053 ms 16316 KB Time limit exceeded
24 Halted 0 ms 0 KB -

Subtask #3-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 3 ms 596 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #3-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 3 ms 596 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #4-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 3 ms 596 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 520 ms 2288 KB Output is correct
6 Correct 666 ms 2388 KB Output is correct
7 Correct 151 ms 1108 KB Output is correct
8 Correct 466 ms 2260 KB Output is correct
9 Correct 2293 ms 4068 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Runtime error 3 ms 596 KB Execution killed with signal 6
14 Halted 0 ms 0 KB -

Subtask #5-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 3 ms 596 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 520 ms 2288 KB Output is correct
6 Correct 666 ms 2388 KB Output is correct
7 Correct 151 ms 1108 KB Output is correct
8 Correct 466 ms 2260 KB Output is correct
9 Correct 2293 ms 4068 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 506 ms 2284 KB Output is correct
17 Correct 663 ms 2448 KB Output is correct
18 Correct 125 ms 1108 KB Output is correct
19 Correct 477 ms 2312 KB Output is correct
20 Correct 2213 ms 4052 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Execution timed out 5053 ms 16316 KB Time limit exceeded
24 Halted 0 ms 0 KB -

Subtask #6-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 3 ms 596 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 520 ms 2288 KB Output is correct
6 Correct 666 ms 2388 KB Output is correct
7 Correct 151 ms 1108 KB Output is correct
8 Correct 466 ms 2260 KB Output is correct
9 Correct 2293 ms 4068 KB Output is correct
10 Correct 3 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 506 ms 2284 KB Output is correct
17 Correct 663 ms 2448 KB Output is correct
18 Correct 125 ms 1108 KB Output is correct
19 Correct 477 ms 2312 KB Output is correct
20 Correct 2213 ms 4052 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Execution timed out 5053 ms 16316 KB Time limit exceeded
24 Halted 0 ms 0 KB -