oj.uz

Submission #874253

# Submission time Handle Problem Language Result Execution time Memory
874253 2023-11-16T14:32:12 Z prvocislo Bitaro's travel (JOI23_travel) C++17
100 / 100
 96 ms 5004 KB 
#include <algorithm>
#include <iostream>
#include <set>
#include <string>
#include <vector>
typedef long long ll;
using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    vector<int> d(n), li(n, -1), ri(n, -1);
    for (int i = 0; i < n; i++) cin >> d[i];
    set<pair<int, int> > id;
    for (int i = n - 2; i >= 0; i--)
    {
        auto it = id.upper_bound({ d[i], n });
        ri[i + 1] = (it == id.begin() ? n - 1 : prev(it)->second);
        pair<int, int> nw = { 2 * d[i] - d[i + 1], i };
        while (!id.empty() && id.rbegin()->first >= nw.first) id.erase(*id.rbegin());
        id.insert(nw);
    }
    ri[0] = n - 1;
    id.clear();
    for (int i = 0; i + 1 < n; i++)
    {
        auto it = id.upper_bound({ d[i + 1], n });
        li[i] = (it == id.end() ? 0 : it->second);
        pair<int, int> nw = { 2 * d[i + 1] - d[i], i + 1 };
        while (!id.empty() && id.begin()->first <= nw.first) id.erase(*id.begin());
        id.insert(nw);
    }
    li[n - 1] = 0;
    int q;
    cin >> q;
    while (q--)
    {
        int x;
        cin >> x;
        int i = lower_bound(d.begin(), d.end(), x) - d.begin();
        if (i == n || (i && x - d[i - 1] <= d[i] - x)) i--;
        ll ans = abs(d[i] - x);
        while (i && i != n - 1)
        {
            if (i != ri[i]) ans += (ll)(d[ri[i]] - d[i]), i = ri[i];
            else ans += (ll)(d[i] - d[li[i]]), i = li[i];
        }
        ans += d[n - 1] - d[0];
        cout << ans << "\n";
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 476 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 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 0 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 476 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 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 0 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 37 ms 2652 KB Output is correct
18 Correct 37 ms 2824 KB Output is correct
19 Correct 37 ms 2652 KB Output is correct
20 Correct 38 ms 2648 KB Output is correct
21 Correct 38 ms 2652 KB Output is correct
22 Correct 36 ms 2648 KB Output is correct
23 Correct 37 ms 2804 KB Output is correct
24 Correct 35 ms 2648 KB Output is correct
25 Correct 34 ms 2800 KB Output is correct
26 Correct 37 ms 2656 KB Output is correct
27 Correct 35 ms 2652 KB Output is correct
28 Correct 34 ms 2648 KB Output is correct
29 Correct 39 ms 2648 KB Output is correct
30 Correct 41 ms 2652 KB Output is correct
31 Correct 40 ms 2648 KB Output is correct

Subtask #3
30.0 / 30.0

# 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 0 ms 348 KB Output is correct
7 Correct 75 ms 4064 KB Output is correct
8 Correct 75 ms 4132 KB Output is correct
9 Correct 75 ms 4096 KB Output is correct
10 Correct 75 ms 4256 KB Output is correct
11 Correct 77 ms 4172 KB Output is correct
12 Correct 74 ms 4176 KB Output is correct
13 Correct 28 ms 2244 KB Output is correct
14 Correct 24 ms 856 KB Output is correct
15 Correct 79 ms 4588 KB Output is correct
16 Correct 75 ms 4436 KB Output is correct
17 Correct 75 ms 4432 KB Output is correct
18 Correct 30 ms 2324 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 476 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 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 0 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 37 ms 2652 KB Output is correct
18 Correct 37 ms 2824 KB Output is correct
19 Correct 37 ms 2652 KB Output is correct
20 Correct 38 ms 2648 KB Output is correct
21 Correct 38 ms 2652 KB Output is correct
22 Correct 36 ms 2648 KB Output is correct
23 Correct 37 ms 2804 KB Output is correct
24 Correct 35 ms 2648 KB Output is correct
25 Correct 34 ms 2800 KB Output is correct
26 Correct 37 ms 2656 KB Output is correct
27 Correct 35 ms 2652 KB Output is correct
28 Correct 34 ms 2648 KB Output is correct
29 Correct 39 ms 2648 KB Output is correct
30 Correct 41 ms 2652 KB Output is correct
31 Correct 40 ms 2648 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 75 ms 4064 KB Output is correct
39 Correct 75 ms 4132 KB Output is correct
40 Correct 75 ms 4096 KB Output is correct
41 Correct 75 ms 4256 KB Output is correct
42 Correct 77 ms 4172 KB Output is correct
43 Correct 74 ms 4176 KB Output is correct
44 Correct 28 ms 2244 KB Output is correct
45 Correct 24 ms 856 KB Output is correct
46 Correct 79 ms 4588 KB Output is correct
47 Correct 75 ms 4436 KB Output is correct
48 Correct 75 ms 4432 KB Output is correct
49 Correct 30 ms 2324 KB Output is correct
50 Correct 95 ms 4944 KB Output is correct
51 Correct 96 ms 5004 KB Output is correct
52 Correct 90 ms 4856 KB Output is correct
53 Correct 95 ms 4844 KB Output is correct
54 Correct 92 ms 4848 KB Output is correct
55 Correct 92 ms 4948 KB Output is correct
56 Correct 74 ms 4692 KB Output is correct
57 Correct 83 ms 4700 KB Output is correct
58 Correct 79 ms 4688 KB Output is correct