| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 730516 |
2023-04-26T04:36:38 Z |
t6twotwo |
Race (IOI11_race) |
C++17 |
|
484 ms |
104680 KB |
#include "race.h"
#include <bits/stdc++.h>
using namespace std;
int best_path(int N, int K, int H[][2], int L[]) {
vector<vector<pair<int, int>>> adj(N);
for (int i = 0; i < N - 1; i++) {
adj[H[i][0]].emplace_back(H[i][1], L[i]);
adj[H[i][1]].emplace_back(H[i][0], L[i]);
}
int ans = N;
vector<set<pair<int64_t, int>>> s(N);
auto dfs = [&](auto dfs, int x, int p, int64_t dis, int dep) -> void {
s[x].emplace(dis, dep);
for (auto [y, z] : adj[x]) {
if (y == p) {
continue;
}
dfs(dfs, y, x, dis + z, dep + 1);
if (s[x].size() < s[y].size()) {
swap(s[x], s[y]);
}
for (auto [len, cnt] : s[y]) {
int64_t q = K - len + 2 * dis;
auto it = s[x].lower_bound({q, 0});
if (it != s[x].end() && (*it).first == q) {
ans = min(ans, (*it).second + cnt - 2 * dep);
}
}
s[x].insert(s[y].begin(), s[y].end());
}
};
dfs(dfs, 0, -1, 0, 0);
if (ans == N) {
ans = -1;
}
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
0 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
0 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
596 KB |
Output is correct |
| 22 |
Correct |
1 ms |
596 KB |
Output is correct |
| 23 |
Correct |
2 ms |
596 KB |
Output is correct |
| 24 |
Correct |
2 ms |
596 KB |
Output is correct |
| 25 |
Correct |
1 ms |
596 KB |
Output is correct |
| 26 |
Correct |
2 ms |
596 KB |
Output is correct |
| 27 |
Correct |
1 ms |
468 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
2 ms |
596 KB |
Output is correct |
| 30 |
Correct |
2 ms |
596 KB |
Output is correct |
| 31 |
Correct |
1 ms |
596 KB |
Output is correct |
| 32 |
Correct |
2 ms |
596 KB |
Output is correct |
| 33 |
Correct |
2 ms |
596 KB |
Output is correct |
| 34 |
Correct |
1 ms |
596 KB |
Output is correct |
| 35 |
Correct |
1 ms |
596 KB |
Output is correct |
| 36 |
Correct |
1 ms |
596 KB |
Output is correct |
| 37 |
Correct |
1 ms |
468 KB |
Output is correct |
| 38 |
Correct |
1 ms |
596 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
0 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
155 ms |
32556 KB |
Output is correct |
| 20 |
Correct |
139 ms |
32592 KB |
Output is correct |
| 21 |
Correct |
141 ms |
31940 KB |
Output is correct |
| 22 |
Correct |
143 ms |
30476 KB |
Output is correct |
| 23 |
Correct |
180 ms |
44900 KB |
Output is correct |
| 24 |
Correct |
167 ms |
31476 KB |
Output is correct |
| 25 |
Correct |
133 ms |
36188 KB |
Output is correct |
| 26 |
Correct |
80 ms |
41376 KB |
Output is correct |
| 27 |
Correct |
184 ms |
46448 KB |
Output is correct |
| 28 |
Correct |
292 ms |
82356 KB |
Output is correct |
| 29 |
Correct |
286 ms |
80692 KB |
Output is correct |
| 30 |
Correct |
182 ms |
46488 KB |
Output is correct |
| 31 |
Correct |
206 ms |
46364 KB |
Output is correct |
| 32 |
Correct |
296 ms |
46364 KB |
Output is correct |
| 33 |
Correct |
230 ms |
48192 KB |
Output is correct |
| 34 |
Correct |
334 ms |
80148 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
0 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
596 KB |
Output is correct |
| 22 |
Correct |
1 ms |
596 KB |
Output is correct |
| 23 |
Correct |
2 ms |
596 KB |
Output is correct |
| 24 |
Correct |
2 ms |
596 KB |
Output is correct |
| 25 |
Correct |
1 ms |
596 KB |
Output is correct |
| 26 |
Correct |
2 ms |
596 KB |
Output is correct |
| 27 |
Correct |
1 ms |
468 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
2 ms |
596 KB |
Output is correct |
| 30 |
Correct |
2 ms |
596 KB |
Output is correct |
| 31 |
Correct |
1 ms |
596 KB |
Output is correct |
| 32 |
Correct |
2 ms |
596 KB |
Output is correct |
| 33 |
Correct |
2 ms |
596 KB |
Output is correct |
| 34 |
Correct |
1 ms |
596 KB |
Output is correct |
| 35 |
Correct |
1 ms |
596 KB |
Output is correct |
| 36 |
Correct |
1 ms |
596 KB |
Output is correct |
| 37 |
Correct |
1 ms |
468 KB |
Output is correct |
| 38 |
Correct |
1 ms |
596 KB |
Output is correct |
| 39 |
Correct |
155 ms |
32556 KB |
Output is correct |
| 40 |
Correct |
139 ms |
32592 KB |
Output is correct |
| 41 |
Correct |
141 ms |
31940 KB |
Output is correct |
| 42 |
Correct |
143 ms |
30476 KB |
Output is correct |
| 43 |
Correct |
180 ms |
44900 KB |
Output is correct |
| 44 |
Correct |
167 ms |
31476 KB |
Output is correct |
| 45 |
Correct |
133 ms |
36188 KB |
Output is correct |
| 46 |
Correct |
80 ms |
41376 KB |
Output is correct |
| 47 |
Correct |
184 ms |
46448 KB |
Output is correct |
| 48 |
Correct |
292 ms |
82356 KB |
Output is correct |
| 49 |
Correct |
286 ms |
80692 KB |
Output is correct |
| 50 |
Correct |
182 ms |
46488 KB |
Output is correct |
| 51 |
Correct |
206 ms |
46364 KB |
Output is correct |
| 52 |
Correct |
296 ms |
46364 KB |
Output is correct |
| 53 |
Correct |
230 ms |
48192 KB |
Output is correct |
| 54 |
Correct |
334 ms |
80148 KB |
Output is correct |
| 55 |
Correct |
14 ms |
4180 KB |
Output is correct |
| 56 |
Correct |
13 ms |
3028 KB |
Output is correct |
| 57 |
Correct |
90 ms |
27308 KB |
Output is correct |
| 58 |
Correct |
45 ms |
18632 KB |
Output is correct |
| 59 |
Correct |
79 ms |
41344 KB |
Output is correct |
| 60 |
Correct |
272 ms |
81452 KB |
Output is correct |
| 61 |
Correct |
249 ms |
52016 KB |
Output is correct |
| 62 |
Correct |
185 ms |
46440 KB |
Output is correct |
| 63 |
Correct |
264 ms |
46500 KB |
Output is correct |
| 64 |
Correct |
467 ms |
104680 KB |
Output is correct |
| 65 |
Correct |
484 ms |
95916 KB |
Output is correct |
| 66 |
Correct |
310 ms |
77076 KB |
Output is correct |
| 67 |
Correct |
190 ms |
37420 KB |
Output is correct |
| 68 |
Correct |
335 ms |
61052 KB |
Output is correct |
| 69 |
Correct |
370 ms |
66868 KB |
Output is correct |
| 70 |
Correct |
318 ms |
58460 KB |
Output is correct |
