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Submission #1061778

# Submission time Handle Problem Language Result Execution time Memory
1061778 2024-08-16T13:18:56 Z mnasser02 Race (IOI11_race) C++17
100 / 100
 307 ms 87360 KB 
#include <bits/stdc++.h>

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef vector<int> vi;
typedef tuple<int, int, int> iii;
typedef pair<ll, ll> pll;
typedef vector<ii> vii;
typedef vector<ll> vll;

#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define LSOne(S) ((S) & -(S))

template <class T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

template <class T>
bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template <class T>
bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }

int best_path(int n, int K, int edges[][2], int weights[]) {
    vector<vii> AL(n);
    for (int i = 0; i < n - 1; i++) {
        auto [u, v] = edges[i];
        int w = weights[i];
        AL[u].push_back({v, w});
        AL[v].push_back({u, w});
    }

    int ans = 1e9;
    auto dfs = [&](auto self, int u, int p, int d, ll s) -> map<ll, int> {
        map<ll, int> res;
        res[s] = d;
        ll targ = K + 2 * s;
        for (auto [v, w] : AL[u]) {
            if (v == p) continue;
            auto cur = self(self, v, u, d + 1, s + w);
            if (res.size() < cur.size()) swap(res, cur);
            for (auto [k, v] : cur) {
                if (res.count(targ - k)) ckmin(ans, v + res[targ - k] - 2 * d);
            }
            for (auto [k, v] : cur) {
                if (res.count(k))
                    ckmin(res[k], v);
                else
                    res[k] = v;
            }
        }
        return res;
    };
    dfs(dfs, 0, -1, 0, 0);
    return ans == 1e9 ? -1 : ans;
}
// int main() {
//     ios_base::sync_with_stdio(0), cin.tie(0);

//     int tc = 1;
//     // cin >> tc;

//     while (tc--) {
//         solve();
//     }
//     return 0;
// }

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2488 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2496 KB Output is correct
9 Correct 0 ms 2500 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2400 KB Output is correct
14 Correct 1 ms 2404 KB Output is correct
15 Correct 1 ms 2400 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2404 KB Output is correct
18 Correct 1 ms 2404 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2488 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2496 KB Output is correct
9 Correct 0 ms 2500 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2400 KB Output is correct
14 Correct 1 ms 2404 KB Output is correct
15 Correct 1 ms 2400 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2404 KB Output is correct
18 Correct 1 ms 2404 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 0 ms 2400 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2648 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2404 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct
29 Correct 1 ms 2508 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2656 KB Output is correct
34 Correct 2 ms 2504 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 1 ms 2652 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2488 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2496 KB Output is correct
9 Correct 0 ms 2500 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2400 KB Output is correct
14 Correct 1 ms 2404 KB Output is correct
15 Correct 1 ms 2400 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2404 KB Output is correct
18 Correct 1 ms 2404 KB Output is correct
19 Correct 55 ms 12028 KB Output is correct
20 Correct 58 ms 12168 KB Output is correct
21 Correct 54 ms 12156 KB Output is correct
22 Correct 68 ms 12040 KB Output is correct
23 Correct 75 ms 12596 KB Output is correct
24 Correct 63 ms 12380 KB Output is correct
25 Correct 67 ms 30152 KB Output is correct
26 Correct 48 ms 45968 KB Output is correct
27 Correct 102 ms 20080 KB Output is correct
28 Correct 184 ms 87360 KB Output is correct
29 Correct 226 ms 84168 KB Output is correct
30 Correct 89 ms 20040 KB Output is correct
31 Correct 91 ms 20048 KB Output is correct
32 Correct 93 ms 20300 KB Output is correct
33 Correct 101 ms 19792 KB Output is correct
34 Correct 193 ms 33240 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2488 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2496 KB Output is correct
9 Correct 0 ms 2500 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2400 KB Output is correct
14 Correct 1 ms 2404 KB Output is correct
15 Correct 1 ms 2400 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2404 KB Output is correct
18 Correct 1 ms 2404 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 0 ms 2400 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2648 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2404 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct
29 Correct 1 ms 2508 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2656 KB Output is correct
34 Correct 2 ms 2504 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 1 ms 2652 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct
39 Correct 55 ms 12028 KB Output is correct
40 Correct 58 ms 12168 KB Output is correct
41 Correct 54 ms 12156 KB Output is correct
42 Correct 68 ms 12040 KB Output is correct
43 Correct 75 ms 12596 KB Output is correct
44 Correct 63 ms 12380 KB Output is correct
45 Correct 67 ms 30152 KB Output is correct
46 Correct 48 ms 45968 KB Output is correct
47 Correct 102 ms 20080 KB Output is correct
48 Correct 184 ms 87360 KB Output is correct
49 Correct 226 ms 84168 KB Output is correct
50 Correct 89 ms 20040 KB Output is correct
51 Correct 91 ms 20048 KB Output is correct
52 Correct 93 ms 20300 KB Output is correct
53 Correct 101 ms 19792 KB Output is correct
54 Correct 193 ms 33240 KB Output is correct
55 Correct 9 ms 3672 KB Output is correct
56 Correct 4 ms 3164 KB Output is correct
57 Correct 33 ms 12124 KB Output is correct
58 Correct 28 ms 11972 KB Output is correct
59 Correct 75 ms 45908 KB Output is correct
60 Correct 172 ms 85132 KB Output is correct
61 Correct 116 ms 21844 KB Output is correct
62 Correct 96 ms 20304 KB Output is correct
63 Correct 100 ms 20400 KB Output is correct
64 Correct 307 ms 28756 KB Output is correct
65 Correct 245 ms 33396 KB Output is correct
66 Correct 189 ms 76888 KB Output is correct
67 Correct 68 ms 20676 KB Output is correct
68 Correct 174 ms 31312 KB Output is correct
69 Correct 204 ms 35932 KB Output is correct
70 Correct 195 ms 30284 KB Output is correct