| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1098865 |
2024-10-10T09:01:04 Z |
vjudge1 |
Race (IOI11_race) |
C++17 |
|
380 ms |
104016 KB |
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define bitcount __builtin_popcountll
using namespace std;
using namespace __gnu_pbds;
using ordered_set = tree<long long,null_type,less_equal<>,rb_tree_tag,tree_order_statistics_node_update>;
map<long long, int> stl[200'000];
vector<pair<int,int>> adj[200'000];
int dep[200'000], ans = 1e9;
long long dist[200'000], k;
void init(int u = 0, int p = 0) {
stl[u][dist[u]] = dep[u];
for (auto [v, w] : adj[u]) if (v != p) {
dep[v] = dep[u] + 1;
dist[v] = dist[u] + w;
init(v, u);
}
}
void dfs(int u = 0, int p = 0) {
long long target = k + 2*dist[u];
for (auto [v, w] : adj[u]) if (v != p) {
dfs(v, u);
if (stl[v].size() > stl[u].size()) swap(stl[u], stl[v]);
for (auto [len, edges] : stl[v]) {
if (stl[u].count(target - len)) {;
ans = min(ans, stl[u][target - len] + edges - 2*dep[u]);
}
}
for (auto [len, edges] : stl[v]) {
if (stl[u].count(len)) {
stl[u][len] = min(stl[u][len], edges);
} else {
stl[u][len] = edges;
}
}
}
// cout << u << ":\n";
// for (auto [len, edges] : stl[u]) cout << len << " " << edges << "\n";
// cout << '\n';
}
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]);
}
init();
dfs();
return ans == 1e9 ? -1 : ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
14424 KB |
Output is correct |
| 2 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 3 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 4 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 5 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 6 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 7 |
Correct |
6 ms |
14528 KB |
Output is correct |
| 8 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 9 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 10 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 11 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 12 |
Correct |
6 ms |
14584 KB |
Output is correct |
| 13 |
Correct |
6 ms |
14340 KB |
Output is correct |
| 14 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 15 |
Correct |
6 ms |
14536 KB |
Output is correct |
| 16 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 17 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 18 |
Correct |
6 ms |
14428 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
14424 KB |
Output is correct |
| 2 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 3 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 4 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 5 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 6 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 7 |
Correct |
6 ms |
14528 KB |
Output is correct |
| 8 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 9 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 10 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 11 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 12 |
Correct |
6 ms |
14584 KB |
Output is correct |
| 13 |
Correct |
6 ms |
14340 KB |
Output is correct |
| 14 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 15 |
Correct |
6 ms |
14536 KB |
Output is correct |
| 16 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 17 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 18 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 19 |
Correct |
6 ms |
14536 KB |
Output is correct |
| 20 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 21 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 22 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 23 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 24 |
Correct |
6 ms |
14844 KB |
Output is correct |
| 25 |
Correct |
6 ms |
14752 KB |
Output is correct |
| 26 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 27 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 28 |
Correct |
6 ms |
14708 KB |
Output is correct |
| 29 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 30 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 31 |
Correct |
6 ms |
14804 KB |
Output is correct |
| 32 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 33 |
Correct |
6 ms |
14680 KB |
Output is correct |
| 34 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 35 |
Correct |
8 ms |
14684 KB |
Output is correct |
| 36 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 37 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 38 |
Correct |
7 ms |
14728 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
14424 KB |
Output is correct |
| 2 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 3 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 4 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 5 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 6 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 7 |
Correct |
6 ms |
14528 KB |
Output is correct |
| 8 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 9 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 10 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 11 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 12 |
Correct |
6 ms |
14584 KB |
Output is correct |
| 13 |
Correct |
6 ms |
14340 KB |
Output is correct |
| 14 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 15 |
Correct |
6 ms |
14536 KB |
Output is correct |
| 16 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 17 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 18 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 19 |
Correct |
96 ms |
37296 KB |
Output is correct |
| 20 |
Correct |
91 ms |
37460 KB |
Output is correct |
| 21 |
Correct |
95 ms |
37200 KB |
Output is correct |
| 22 |
Correct |
95 ms |
36760 KB |
Output is correct |
| 23 |
Correct |
129 ms |
49600 KB |
Output is correct |
| 24 |
Correct |
103 ms |
40276 KB |
Output is correct |
| 25 |
Correct |
86 ms |
37968 KB |
Output is correct |
| 26 |
Correct |
52 ms |
46420 KB |
Output is correct |
| 27 |
Correct |
141 ms |
48724 KB |
Output is correct |
| 28 |
Correct |
243 ms |
90912 KB |
Output is correct |
| 29 |
Correct |
253 ms |
89172 KB |
Output is correct |
| 30 |
Correct |
144 ms |
48636 KB |
Output is correct |
| 31 |
Correct |
131 ms |
48572 KB |
Output is correct |
| 32 |
Correct |
183 ms |
48724 KB |
Output is correct |
| 33 |
Correct |
205 ms |
53636 KB |
Output is correct |
| 34 |
Correct |
295 ms |
86588 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
14424 KB |
Output is correct |
| 2 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 3 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 4 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 5 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 6 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 7 |
Correct |
6 ms |
14528 KB |
Output is correct |
| 8 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 9 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 10 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 11 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 12 |
Correct |
6 ms |
14584 KB |
Output is correct |
| 13 |
Correct |
6 ms |
14340 KB |
Output is correct |
| 14 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 15 |
Correct |
6 ms |
14536 KB |
Output is correct |
| 16 |
Correct |
5 ms |
14428 KB |
Output is correct |
| 17 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 18 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 19 |
Correct |
6 ms |
14536 KB |
Output is correct |
| 20 |
Correct |
6 ms |
14428 KB |
Output is correct |
| 21 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 22 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 23 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 24 |
Correct |
6 ms |
14844 KB |
Output is correct |
| 25 |
Correct |
6 ms |
14752 KB |
Output is correct |
| 26 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 27 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 28 |
Correct |
6 ms |
14708 KB |
Output is correct |
| 29 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 30 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 31 |
Correct |
6 ms |
14804 KB |
Output is correct |
| 32 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 33 |
Correct |
6 ms |
14680 KB |
Output is correct |
| 34 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 35 |
Correct |
8 ms |
14684 KB |
Output is correct |
| 36 |
Correct |
6 ms |
14684 KB |
Output is correct |
| 37 |
Correct |
7 ms |
14684 KB |
Output is correct |
| 38 |
Correct |
7 ms |
14728 KB |
Output is correct |
| 39 |
Correct |
96 ms |
37296 KB |
Output is correct |
| 40 |
Correct |
91 ms |
37460 KB |
Output is correct |
| 41 |
Correct |
95 ms |
37200 KB |
Output is correct |
| 42 |
Correct |
95 ms |
36760 KB |
Output is correct |
| 43 |
Correct |
129 ms |
49600 KB |
Output is correct |
| 44 |
Correct |
103 ms |
40276 KB |
Output is correct |
| 45 |
Correct |
86 ms |
37968 KB |
Output is correct |
| 46 |
Correct |
52 ms |
46420 KB |
Output is correct |
| 47 |
Correct |
141 ms |
48724 KB |
Output is correct |
| 48 |
Correct |
243 ms |
90912 KB |
Output is correct |
| 49 |
Correct |
253 ms |
89172 KB |
Output is correct |
| 50 |
Correct |
144 ms |
48636 KB |
Output is correct |
| 51 |
Correct |
131 ms |
48572 KB |
Output is correct |
| 52 |
Correct |
183 ms |
48724 KB |
Output is correct |
| 53 |
Correct |
205 ms |
53636 KB |
Output is correct |
| 54 |
Correct |
295 ms |
86588 KB |
Output is correct |
| 55 |
Correct |
18 ms |
17752 KB |
Output is correct |
| 56 |
Correct |
12 ms |
16476 KB |
Output is correct |
| 57 |
Correct |
59 ms |
34652 KB |
Output is correct |
| 58 |
Correct |
46 ms |
28136 KB |
Output is correct |
| 59 |
Correct |
78 ms |
52560 KB |
Output is correct |
| 60 |
Correct |
249 ms |
89428 KB |
Output is correct |
| 61 |
Correct |
175 ms |
52108 KB |
Output is correct |
| 62 |
Correct |
147 ms |
48724 KB |
Output is correct |
| 63 |
Correct |
180 ms |
48800 KB |
Output is correct |
| 64 |
Correct |
380 ms |
104016 KB |
Output is correct |
| 65 |
Correct |
356 ms |
101968 KB |
Output is correct |
| 66 |
Correct |
226 ms |
85136 KB |
Output is correct |
| 67 |
Correct |
120 ms |
43052 KB |
Output is correct |
| 68 |
Correct |
248 ms |
65672 KB |
Output is correct |
| 69 |
Correct |
278 ms |
70780 KB |
Output is correct |
| 70 |
Correct |
234 ms |
63568 KB |
Output is correct |
