oj.uz

Submission #1037831

# Submission time Handle Problem Language Result Execution time Memory
1037831 2024-07-29T08:59:33 Z fv3 Closing Time (IOI23_closing) C++17
21 / 100
 1000 ms 10440 KB 
#include "closing.h"
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

const ll INF = 1ll << 60ll;

int max_score(int N, int X, int Y, ll K,
              vector<int> U, vector<int> V, vector<int> W)
{
    // Subtask 4:
    // Find optimal distance X should move to the right
    // O(N²)

    int best = 0;
    for (int r = X; r < N; r++)
    {
        vector<ll> closingTime(N);

        int res = 0;
        ll k_sum = 0;

        for (int i = X + 1; i <= r; i++)
        {
            closingTime[i] = closingTime[i-1] + W[i-1];
            k_sum += closingTime[i];
            res++;
        }
        if (k_sum > K)
            break;

        for (int l = Y; l >= 0; l--)
        {
            int score = res;
            ll sum = k_sum;

            vector<ll> ct = closingTime;

            best = max(best, res);
            vector<ll> dist(N);
            for (int i = Y - 1; i >= l; i--)
            {
                dist[i] = dist[i+1] + W[i];
                sum += max(0ll, dist[i] - ct[i]);
                ct[i] = max(ct[i], dist[i+1] + W[i]);
                score++;
            }
            if (sum > K)
                break;

            priority_queue<pair<ll, int>> q;
            q.push({0, X});
            q.push({0, Y});

            dist[X] = 0;
            dist[Y] = 0;

            while (!q.empty())
            {
                int s = q.top().second;

                if (sum - q.top().first > K)
                    break;
                sum -= q.top().first;
                score++;
                q.pop();

                if (s <= X && s)
                {
                    // Go left as X
                    dist[s-1] = dist[s] + W[s-1];
                    q.push({-max(0ll, dist[s-1] - ct[s-1]), s-1});
                }
                else if (s >= Y && s < N - 1)
                {
                    // Go right as Y
                    dist[s+1] = dist[s] + W[s];
                    q.push({-max(0ll, dist[s+1] - ct[s+1]), s+1});
                }
            }

            //cerr << ": " << r << " " << l << " = " << score << " (" << sum << ")\n";
            best = max(best, score);
        }
    }

    return best;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #1
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 10440 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 4 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 212 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 452 ms 440 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 30 ms 348 KB Output is correct
24 Correct 28 ms 348 KB Output is correct

Subtask #4
0.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 4 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 212 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 452 ms 440 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 30 ms 348 KB Output is correct
24 Correct 28 ms 348 KB Output is correct
25 Correct 31 ms 348 KB Output is correct
26 Execution timed out 1075 ms 604 KB Time limit exceeded
27 Halted 0 ms 0 KB -

Subtask #5
0.0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -