| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 349765 |
2021-01-18T10:32:30 Z |
pavement |
Race (IOI11_race) |
C++17 |
|
524 ms |
146028 KB |
#include "race.h"
#include <bits/stdc++.h>
using namespace std;
int _K, ans = 1e9, dist[1000005], dep[1000005];
vector<pair<int, int> > adj[1000005];
set<pair<int, int> > S[1000005];
void dfs(int n, int e = -1) {
S[n].emplace(dist[n], dep[n]);
for (auto u : adj[n]) {
if (u.first != e) {
dist[u.first] = dist[n] + u.second;
dep[u.first] = dep[n] + 1;
dfs(u.first, n);
if (S[n].size() < S[u.first].size()) swap(S[n], S[u.first]);
for (auto i : S[u.first]) {
auto it = S[n].lower_bound(make_pair(_K - i.first + 2 * dist[n], 0));
if (it != S[n].end() && it->first + i.first - 2 * dist[n] == _K) ans = min(ans, it->second + i.second - 2 * dep[n]);
}
for (auto i : S[u.first]) S[n].insert(i);
}
}
}
int best_path(int N, int K, int H[][2], int L[]) {
_K = K;
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]);
}
dfs(0);
return (ans == 1e9 ? -1 : ans);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 2 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 3 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 4 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 5 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 6 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 7 |
Correct |
49 ms |
70764 KB |
Output is correct |
| 8 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 9 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 10 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 11 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 12 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 13 |
Correct |
48 ms |
70848 KB |
Output is correct |
| 14 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 15 |
Correct |
48 ms |
70892 KB |
Output is correct |
| 16 |
Correct |
48 ms |
70836 KB |
Output is correct |
| 17 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 18 |
Correct |
48 ms |
70764 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 2 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 3 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 4 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 5 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 6 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 7 |
Correct |
49 ms |
70764 KB |
Output is correct |
| 8 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 9 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 10 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 11 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 12 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 13 |
Correct |
48 ms |
70848 KB |
Output is correct |
| 14 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 15 |
Correct |
48 ms |
70892 KB |
Output is correct |
| 16 |
Correct |
48 ms |
70836 KB |
Output is correct |
| 17 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 18 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 19 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 20 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 21 |
Correct |
50 ms |
71040 KB |
Output is correct |
| 22 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 23 |
Correct |
50 ms |
71020 KB |
Output is correct |
| 24 |
Correct |
49 ms |
71212 KB |
Output is correct |
| 25 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 26 |
Correct |
48 ms |
71020 KB |
Output is correct |
| 27 |
Correct |
48 ms |
70892 KB |
Output is correct |
| 28 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 29 |
Correct |
50 ms |
71020 KB |
Output is correct |
| 30 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 31 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 32 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 33 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 34 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 35 |
Correct |
48 ms |
71020 KB |
Output is correct |
| 36 |
Correct |
48 ms |
71020 KB |
Output is correct |
| 37 |
Correct |
54 ms |
71020 KB |
Output is correct |
| 38 |
Correct |
48 ms |
71020 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 2 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 3 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 4 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 5 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 6 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 7 |
Correct |
49 ms |
70764 KB |
Output is correct |
| 8 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 9 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 10 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 11 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 12 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 13 |
Correct |
48 ms |
70848 KB |
Output is correct |
| 14 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 15 |
Correct |
48 ms |
70892 KB |
Output is correct |
| 16 |
Correct |
48 ms |
70836 KB |
Output is correct |
| 17 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 18 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 19 |
Correct |
198 ms |
93164 KB |
Output is correct |
| 20 |
Correct |
199 ms |
93292 KB |
Output is correct |
| 21 |
Correct |
195 ms |
92640 KB |
Output is correct |
| 22 |
Correct |
195 ms |
91500 KB |
Output is correct |
| 23 |
Correct |
229 ms |
102508 KB |
Output is correct |
| 24 |
Correct |
184 ms |
92396 KB |
Output is correct |
| 25 |
Correct |
190 ms |
96236 KB |
Output is correct |
| 26 |
Correct |
131 ms |
100716 KB |
Output is correct |
| 27 |
Correct |
287 ms |
101868 KB |
Output is correct |
| 28 |
Correct |
339 ms |
130924 KB |
Output is correct |
| 29 |
Correct |
343 ms |
129580 KB |
Output is correct |
| 30 |
Correct |
295 ms |
101928 KB |
Output is correct |
| 31 |
Correct |
287 ms |
101740 KB |
Output is correct |
| 32 |
Correct |
376 ms |
101868 KB |
Output is correct |
| 33 |
Correct |
293 ms |
102892 KB |
Output is correct |
| 34 |
Correct |
397 ms |
127852 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 2 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 3 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 4 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 5 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 6 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 7 |
Correct |
49 ms |
70764 KB |
Output is correct |
| 8 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 9 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 10 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 11 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 12 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 13 |
Correct |
48 ms |
70848 KB |
Output is correct |
| 14 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 15 |
Correct |
48 ms |
70892 KB |
Output is correct |
| 16 |
Correct |
48 ms |
70836 KB |
Output is correct |
| 17 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 18 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 19 |
Correct |
48 ms |
70764 KB |
Output is correct |
| 20 |
Correct |
47 ms |
70764 KB |
Output is correct |
| 21 |
Correct |
50 ms |
71040 KB |
Output is correct |
| 22 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 23 |
Correct |
50 ms |
71020 KB |
Output is correct |
| 24 |
Correct |
49 ms |
71212 KB |
Output is correct |
| 25 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 26 |
Correct |
48 ms |
71020 KB |
Output is correct |
| 27 |
Correct |
48 ms |
70892 KB |
Output is correct |
| 28 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 29 |
Correct |
50 ms |
71020 KB |
Output is correct |
| 30 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 31 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 32 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 33 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 34 |
Correct |
49 ms |
71020 KB |
Output is correct |
| 35 |
Correct |
48 ms |
71020 KB |
Output is correct |
| 36 |
Correct |
48 ms |
71020 KB |
Output is correct |
| 37 |
Correct |
54 ms |
71020 KB |
Output is correct |
| 38 |
Correct |
48 ms |
71020 KB |
Output is correct |
| 39 |
Correct |
198 ms |
93164 KB |
Output is correct |
| 40 |
Correct |
199 ms |
93292 KB |
Output is correct |
| 41 |
Correct |
195 ms |
92640 KB |
Output is correct |
| 42 |
Correct |
195 ms |
91500 KB |
Output is correct |
| 43 |
Correct |
229 ms |
102508 KB |
Output is correct |
| 44 |
Correct |
184 ms |
92396 KB |
Output is correct |
| 45 |
Correct |
190 ms |
96236 KB |
Output is correct |
| 46 |
Correct |
131 ms |
100716 KB |
Output is correct |
| 47 |
Correct |
287 ms |
101868 KB |
Output is correct |
| 48 |
Correct |
339 ms |
130924 KB |
Output is correct |
| 49 |
Correct |
343 ms |
129580 KB |
Output is correct |
| 50 |
Correct |
295 ms |
101928 KB |
Output is correct |
| 51 |
Correct |
287 ms |
101740 KB |
Output is correct |
| 52 |
Correct |
376 ms |
101868 KB |
Output is correct |
| 53 |
Correct |
293 ms |
102892 KB |
Output is correct |
| 54 |
Correct |
397 ms |
127852 KB |
Output is correct |
| 55 |
Correct |
61 ms |
73580 KB |
Output is correct |
| 56 |
Correct |
57 ms |
72684 KB |
Output is correct |
| 57 |
Correct |
134 ms |
89196 KB |
Output is correct |
| 58 |
Correct |
101 ms |
82400 KB |
Output is correct |
| 59 |
Correct |
130 ms |
100716 KB |
Output is correct |
| 60 |
Correct |
326 ms |
129900 KB |
Output is correct |
| 61 |
Correct |
323 ms |
106220 KB |
Output is correct |
| 62 |
Correct |
288 ms |
101996 KB |
Output is correct |
| 63 |
Correct |
364 ms |
101996 KB |
Output is correct |
| 64 |
Correct |
524 ms |
146028 KB |
Output is correct |
| 65 |
Correct |
518 ms |
139884 KB |
Output is correct |
| 66 |
Correct |
346 ms |
126572 KB |
Output is correct |
| 67 |
Correct |
246 ms |
95708 KB |
Output is correct |
| 68 |
Correct |
454 ms |
113772 KB |
Output is correct |
| 69 |
Correct |
485 ms |
117996 KB |
Output is correct |
| 70 |
Correct |
430 ms |
111852 KB |
Output is correct |
