| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 43652 |
2018-03-19T07:00:48 Z |
baactree |
Race (IOI11_race) |
C++14 |
|
1544 ms |
43684 KB |
#include "race.h"
#include <bits/stdc++.h>
using namespace std;
const int inf = 0x3f3f3f3f;
int n, k;
vector<pair<int, int> > adj[200005];
int cnt[200005], trip[200005];
int get_cnt(int now, int par) {
cnt[now] = 1;
for (auto &there : adj[now]) {
if (there.first == par || trip[there.first])continue;
cnt[now] += get_cnt(there.first, now);
}
return cnt[now];
}
int get_centroid(int now, int par,int c) {
for (auto &there : adj[now]) {
if (there.first == par || trip[there.first])continue;
if(cnt[there.first]>c)
return get_centroid(there.first, now, c);
}
return now;
}
void dfs(int now, int par, int weight, int depth, vector<pair<int, int> > &vec) {
vec.emplace_back(weight, depth);
for (auto &there : adj[now]) {
if (there.first == par || trip[there.first])continue;
dfs(there.first, now, weight + there.second, depth + 1, vec);
}
}
int solve(int now) {
get_cnt(now, -1);
int centroid = get_centroid(now, -1, cnt[now] / 2);
trip[centroid] = true;
int ret = inf;
map<int, int> mp;
mp[0] = 0;
for (auto &there : adj[centroid]) {
if (trip[there.first])continue;
vector<pair<int, int> > vec;
dfs(there.first, centroid, there.second, 1, vec);
for (auto x : vec)
if (mp.count(k - x.first))
ret = min(ret, x.second + mp[k - x.first]);
for (auto x : vec) {
if (!mp.count(x.first))
mp[x.first] = x.second;
else
mp[x.first] = min(mp[x.first], x.second);
}
}
for (auto &there : adj[centroid]) {
if (trip[there.first])continue;
ret = min(ret, solve(there.first));
}
return ret;
}
int best_path(int N, int K, int H[][2], int L[])
{
n = N; 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]);
}
int ret = solve(0);
return ret == inf ? -1 : ret;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 10 |
Correct |
5 ms |
5336 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 12 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 13 |
Correct |
5 ms |
5344 KB |
Output is correct |
| 14 |
Correct |
7 ms |
5344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 10 |
Correct |
5 ms |
5336 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 12 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 13 |
Correct |
5 ms |
5344 KB |
Output is correct |
| 14 |
Correct |
7 ms |
5344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 19 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 20 |
Correct |
7 ms |
5344 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5348 KB |
Output is correct |
| 22 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 23 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 24 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 25 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 26 |
Correct |
10 ms |
5476 KB |
Output is correct |
| 27 |
Correct |
7 ms |
5476 KB |
Output is correct |
| 28 |
Correct |
9 ms |
5476 KB |
Output is correct |
| 29 |
Correct |
9 ms |
5484 KB |
Output is correct |
| 30 |
Correct |
9 ms |
5484 KB |
Output is correct |
| 31 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 32 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 33 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 34 |
Correct |
7 ms |
5484 KB |
Output is correct |
| 35 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 36 |
Correct |
7 ms |
5484 KB |
Output is correct |
| 37 |
Correct |
7 ms |
5484 KB |
Output is correct |
| 38 |
Correct |
8 ms |
5484 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 10 |
Correct |
5 ms |
5336 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 12 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 13 |
Correct |
5 ms |
5344 KB |
Output is correct |
| 14 |
Correct |
7 ms |
5344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 19 |
Correct |
362 ms |
11436 KB |
Output is correct |
| 20 |
Correct |
339 ms |
11476 KB |
Output is correct |
| 21 |
Correct |
327 ms |
11520 KB |
Output is correct |
| 22 |
Correct |
292 ms |
11520 KB |
Output is correct |
| 23 |
Correct |
433 ms |
11836 KB |
Output is correct |
| 24 |
Correct |
242 ms |
11836 KB |
Output is correct |
| 25 |
Correct |
277 ms |
14404 KB |
Output is correct |
| 26 |
Correct |
138 ms |
15588 KB |
Output is correct |
| 27 |
Correct |
465 ms |
17008 KB |
Output is correct |
| 28 |
Correct |
1369 ms |
43684 KB |
Output is correct |
| 29 |
Correct |
1239 ms |
43684 KB |
Output is correct |
| 30 |
Correct |
425 ms |
43684 KB |
Output is correct |
| 31 |
Correct |
524 ms |
43684 KB |
Output is correct |
| 32 |
Correct |
497 ms |
43684 KB |
Output is correct |
| 33 |
Correct |
989 ms |
43684 KB |
Output is correct |
| 34 |
Correct |
1436 ms |
43684 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5220 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5336 KB |
Output is correct |
| 10 |
Correct |
5 ms |
5336 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 12 |
Correct |
7 ms |
5336 KB |
Output is correct |
| 13 |
Correct |
5 ms |
5344 KB |
Output is correct |
| 14 |
Correct |
7 ms |
5344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 19 |
Correct |
6 ms |
5344 KB |
Output is correct |
| 20 |
Correct |
7 ms |
5344 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5348 KB |
Output is correct |
| 22 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 23 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 24 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 25 |
Correct |
8 ms |
5412 KB |
Output is correct |
| 26 |
Correct |
10 ms |
5476 KB |
Output is correct |
| 27 |
Correct |
7 ms |
5476 KB |
Output is correct |
| 28 |
Correct |
9 ms |
5476 KB |
Output is correct |
| 29 |
Correct |
9 ms |
5484 KB |
Output is correct |
| 30 |
Correct |
9 ms |
5484 KB |
Output is correct |
| 31 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 32 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 33 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 34 |
Correct |
7 ms |
5484 KB |
Output is correct |
| 35 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 36 |
Correct |
7 ms |
5484 KB |
Output is correct |
| 37 |
Correct |
7 ms |
5484 KB |
Output is correct |
| 38 |
Correct |
8 ms |
5484 KB |
Output is correct |
| 39 |
Correct |
362 ms |
11436 KB |
Output is correct |
| 40 |
Correct |
339 ms |
11476 KB |
Output is correct |
| 41 |
Correct |
327 ms |
11520 KB |
Output is correct |
| 42 |
Correct |
292 ms |
11520 KB |
Output is correct |
| 43 |
Correct |
433 ms |
11836 KB |
Output is correct |
| 44 |
Correct |
242 ms |
11836 KB |
Output is correct |
| 45 |
Correct |
277 ms |
14404 KB |
Output is correct |
| 46 |
Correct |
138 ms |
15588 KB |
Output is correct |
| 47 |
Correct |
465 ms |
17008 KB |
Output is correct |
| 48 |
Correct |
1369 ms |
43684 KB |
Output is correct |
| 49 |
Correct |
1239 ms |
43684 KB |
Output is correct |
| 50 |
Correct |
425 ms |
43684 KB |
Output is correct |
| 51 |
Correct |
524 ms |
43684 KB |
Output is correct |
| 52 |
Correct |
497 ms |
43684 KB |
Output is correct |
| 53 |
Correct |
989 ms |
43684 KB |
Output is correct |
| 54 |
Correct |
1436 ms |
43684 KB |
Output is correct |
| 55 |
Correct |
33 ms |
43684 KB |
Output is correct |
| 56 |
Correct |
23 ms |
43684 KB |
Output is correct |
| 57 |
Correct |
186 ms |
43684 KB |
Output is correct |
| 58 |
Correct |
63 ms |
43684 KB |
Output is correct |
| 59 |
Correct |
404 ms |
43684 KB |
Output is correct |
| 60 |
Correct |
1282 ms |
43684 KB |
Output is correct |
| 61 |
Correct |
468 ms |
43684 KB |
Output is correct |
| 62 |
Correct |
426 ms |
43684 KB |
Output is correct |
| 63 |
Correct |
584 ms |
43684 KB |
Output is correct |
| 64 |
Correct |
1544 ms |
43684 KB |
Output is correct |
| 65 |
Correct |
1211 ms |
43684 KB |
Output is correct |
| 66 |
Correct |
1529 ms |
43684 KB |
Output is correct |
| 67 |
Correct |
263 ms |
43684 KB |
Output is correct |
| 68 |
Correct |
766 ms |
43684 KB |
Output is correct |
| 69 |
Correct |
747 ms |
43684 KB |
Output is correct |
| 70 |
Correct |
715 ms |
43684 KB |
Output is correct |
