oj.uz

Submission #891157

# Submission time Handle Problem Language Result Execution time Memory
891157 2023-12-22T09:09:45 Z vjudge1 Bitaro's travel (JOI23_travel) C++17
100 / 100
 411 ms 4432 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) x.begin(), x.end()
#define size(x) (int)x.size()

template<class S, class T>
bool chmin(S &a, const T &b) {
    return a > b && (a = b) == b;
}
template<class S, class T>
bool chmax(S &a, const T &b) {
    return a < b && (a = b) == b;
}
const int inf = 1e9 + 7;
const int INF = 1e18 + 7;
const int mod = 998244353;

int n;
vector<int> x;

int solve(int l, int r, bool direction) {
    int p = x[direction ? r : l];
    if (l == 0) {
        return x[n - 1] - p;
    } else if (r == n - 1) {
        return p - x[0];
    } else if (p - x[l - 1] <= x[r + 1] - p) {
        int q = lower_bound(all(x), 2 * p - x[r + 1]) - x.begin();
        return p - x[q] + solve(q, r, false);
    } else {
        int q = upper_bound(all(x), 2 * p - x[l - 1]) - x.begin() - 1;
        return x[q] - p + solve(l, q, true);
    }
}

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n;
    x.resize(n);
    for (int i = 0; i < n; ++i) {
        cin >> x[i];
    }
    int q;
    cin >> q;
    while (q--) {
        int s;
        cin >> s;
        int p = upper_bound(all(x), s) - x.begin() - 1;
        if (p == -1) {
            cout << x[n - 1] - s << '\n';
        } else if (p == n - 1) {
            cout << s - x[0] << '\n';
        } else if (s - x[p] <= x[p + 1] - s) {
            cout << s - x[p] + solve(p, p, false) << '\n';
        } else {
            cout << x[p + 1] - s + solve(p + 1, p + 1, true) << '\n';
        }
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 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 0 ms 348 KB Output is correct
15 Correct 1 ms 424 KB Output is correct
16 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 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 0 ms 348 KB Output is correct
15 Correct 1 ms 424 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 15 ms 1884 KB Output is correct
18 Correct 18 ms 1884 KB Output is correct
19 Correct 15 ms 1884 KB Output is correct
20 Correct 18 ms 1884 KB Output is correct
21 Correct 16 ms 1884 KB Output is correct
22 Correct 17 ms 1884 KB Output is correct
23 Correct 17 ms 1884 KB Output is correct
24 Correct 14 ms 1884 KB Output is correct
25 Correct 18 ms 1884 KB Output is correct
26 Correct 14 ms 1884 KB Output is correct
27 Correct 15 ms 2136 KB Output is correct
28 Correct 15 ms 1892 KB Output is correct
29 Correct 15 ms 1884 KB Output is correct
30 Correct 17 ms 1884 KB Output is correct
31 Correct 15 ms 1880 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 347 ms 3356 KB Output is correct
8 Correct 353 ms 3324 KB Output is correct
9 Correct 348 ms 3228 KB Output is correct
10 Correct 350 ms 3220 KB Output is correct
11 Correct 345 ms 3412 KB Output is correct
12 Correct 352 ms 3428 KB Output is correct
13 Correct 31 ms 2388 KB Output is correct
14 Correct 21 ms 860 KB Output is correct
15 Correct 227 ms 3632 KB Output is correct
16 Correct 228 ms 3640 KB Output is correct
17 Correct 227 ms 3592 KB Output is correct
18 Correct 31 ms 2132 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 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 0 ms 348 KB Output is correct
15 Correct 1 ms 424 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 15 ms 1884 KB Output is correct
18 Correct 18 ms 1884 KB Output is correct
19 Correct 15 ms 1884 KB Output is correct
20 Correct 18 ms 1884 KB Output is correct
21 Correct 16 ms 1884 KB Output is correct
22 Correct 17 ms 1884 KB Output is correct
23 Correct 17 ms 1884 KB Output is correct
24 Correct 14 ms 1884 KB Output is correct
25 Correct 18 ms 1884 KB Output is correct
26 Correct 14 ms 1884 KB Output is correct
27 Correct 15 ms 2136 KB Output is correct
28 Correct 15 ms 1892 KB Output is correct
29 Correct 15 ms 1884 KB Output is correct
30 Correct 17 ms 1884 KB Output is correct
31 Correct 15 ms 1880 KB Output is correct
32 Correct 1 ms 348 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 347 ms 3356 KB Output is correct
39 Correct 353 ms 3324 KB Output is correct
40 Correct 348 ms 3228 KB Output is correct
41 Correct 350 ms 3220 KB Output is correct
42 Correct 345 ms 3412 KB Output is correct
43 Correct 352 ms 3428 KB Output is correct
44 Correct 31 ms 2388 KB Output is correct
45 Correct 21 ms 860 KB Output is correct
46 Correct 227 ms 3632 KB Output is correct
47 Correct 228 ms 3640 KB Output is correct
48 Correct 227 ms 3592 KB Output is correct
49 Correct 31 ms 2132 KB Output is correct
50 Correct 310 ms 3988 KB Output is correct
51 Correct 253 ms 4132 KB Output is correct
52 Correct 243 ms 4168 KB Output is correct
53 Correct 410 ms 4168 KB Output is correct
54 Correct 406 ms 4176 KB Output is correct
55 Correct 411 ms 4432 KB Output is correct
56 Correct 56 ms 3924 KB Output is correct
57 Correct 57 ms 3920 KB Output is correct
58 Correct 56 ms 3920 KB Output is correct