| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 500614 |
2021-12-31T15:04:21 Z |
Joo |
Race (IOI11_race) |
C++17 |
|
435 ms |
101484 KB |
#include "race.h"
#include <bits/stdc++.h>
#define DEBUG 0
using namespace std;
const int MAXN = 2e5+10;
int ans = MAXN;
map<long long, int> mp[MAXN];
vector<pair<int,int>> G[MAXN];
void dfs(int u, int p, int dep, long long d, long long k){
mp[u][d] = dep;
for(auto [v, w] : G[u]){
if(v == p) continue;
dfs(v, u, dep+1, d+w, k);
if(mp[v].size() > mp[u].size()) swap(mp[v], mp[u]);
for(auto &[key, val] : mp[v]){
long long tmp = k-key+2*d;
if(mp[u].count(tmp)) ans = min(ans, val+mp[u][tmp]-2*dep);
}
for(auto &[key, val] : mp[v]){
if(mp[u].count(key)) mp[u][key] = min(mp[u][key], val);
else mp[u][key] = val;
}
}
if(mp[u].count(k+d)) ans = min(ans, mp[u][k+d]-dep);
}
int best_path(int N, int K, int H[][2], int L[])
{
for(int i = 0; i < N-1; i++){
int u = H[i][0], v = H[i][1];
G[u].emplace_back(v, L[i]);
G[v].emplace_back(u, L[i]);
}
dfs(0, 0, 0, 0, K);
if(ans >= MAXN) ans = -1;
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14372 KB |
Output is correct |
| 3 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 4 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 5 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 6 |
Correct |
9 ms |
14412 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 8 |
Correct |
10 ms |
14388 KB |
Output is correct |
| 9 |
Correct |
7 ms |
14392 KB |
Output is correct |
| 10 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 11 |
Correct |
7 ms |
14384 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14384 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14388 KB |
Output is correct |
| 14 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14388 KB |
Output is correct |
| 16 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 17 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14392 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14372 KB |
Output is correct |
| 3 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 4 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 5 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 6 |
Correct |
9 ms |
14412 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 8 |
Correct |
10 ms |
14388 KB |
Output is correct |
| 9 |
Correct |
7 ms |
14392 KB |
Output is correct |
| 10 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 11 |
Correct |
7 ms |
14384 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14384 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14388 KB |
Output is correct |
| 14 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14388 KB |
Output is correct |
| 16 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 17 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14392 KB |
Output is correct |
| 19 |
Correct |
8 ms |
14284 KB |
Output is correct |
| 20 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 21 |
Correct |
9 ms |
14540 KB |
Output is correct |
| 22 |
Correct |
8 ms |
14636 KB |
Output is correct |
| 23 |
Correct |
8 ms |
14660 KB |
Output is correct |
| 24 |
Correct |
9 ms |
14668 KB |
Output is correct |
| 25 |
Correct |
9 ms |
14656 KB |
Output is correct |
| 26 |
Correct |
8 ms |
14668 KB |
Output is correct |
| 27 |
Correct |
8 ms |
14532 KB |
Output is correct |
| 28 |
Correct |
9 ms |
14664 KB |
Output is correct |
| 29 |
Correct |
9 ms |
14668 KB |
Output is correct |
| 30 |
Correct |
9 ms |
14644 KB |
Output is correct |
| 31 |
Correct |
9 ms |
14664 KB |
Output is correct |
| 32 |
Correct |
9 ms |
14656 KB |
Output is correct |
| 33 |
Correct |
11 ms |
14728 KB |
Output is correct |
| 34 |
Correct |
8 ms |
14524 KB |
Output is correct |
| 35 |
Correct |
8 ms |
14520 KB |
Output is correct |
| 36 |
Correct |
9 ms |
14536 KB |
Output is correct |
| 37 |
Correct |
8 ms |
14540 KB |
Output is correct |
| 38 |
Correct |
11 ms |
14652 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14372 KB |
Output is correct |
| 3 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 4 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 5 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 6 |
Correct |
9 ms |
14412 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 8 |
Correct |
10 ms |
14388 KB |
Output is correct |
| 9 |
Correct |
7 ms |
14392 KB |
Output is correct |
| 10 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 11 |
Correct |
7 ms |
14384 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14384 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14388 KB |
Output is correct |
| 14 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14388 KB |
Output is correct |
| 16 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 17 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14392 KB |
Output is correct |
| 19 |
Correct |
124 ms |
35420 KB |
Output is correct |
| 20 |
Correct |
117 ms |
36164 KB |
Output is correct |
| 21 |
Correct |
122 ms |
35876 KB |
Output is correct |
| 22 |
Correct |
122 ms |
35428 KB |
Output is correct |
| 23 |
Correct |
169 ms |
48244 KB |
Output is correct |
| 24 |
Correct |
130 ms |
38856 KB |
Output is correct |
| 25 |
Correct |
119 ms |
35272 KB |
Output is correct |
| 26 |
Correct |
60 ms |
41904 KB |
Output is correct |
| 27 |
Correct |
192 ms |
46292 KB |
Output is correct |
| 28 |
Correct |
360 ms |
82336 KB |
Output is correct |
| 29 |
Correct |
307 ms |
80856 KB |
Output is correct |
| 30 |
Correct |
205 ms |
46332 KB |
Output is correct |
| 31 |
Correct |
190 ms |
46276 KB |
Output is correct |
| 32 |
Correct |
232 ms |
46424 KB |
Output is correct |
| 33 |
Correct |
225 ms |
51168 KB |
Output is correct |
| 34 |
Correct |
333 ms |
84024 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 2 |
Correct |
7 ms |
14372 KB |
Output is correct |
| 3 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 4 |
Correct |
8 ms |
14396 KB |
Output is correct |
| 5 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 6 |
Correct |
9 ms |
14412 KB |
Output is correct |
| 7 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 8 |
Correct |
10 ms |
14388 KB |
Output is correct |
| 9 |
Correct |
7 ms |
14392 KB |
Output is correct |
| 10 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 11 |
Correct |
7 ms |
14384 KB |
Output is correct |
| 12 |
Correct |
8 ms |
14384 KB |
Output is correct |
| 13 |
Correct |
7 ms |
14388 KB |
Output is correct |
| 14 |
Correct |
8 ms |
14412 KB |
Output is correct |
| 15 |
Correct |
8 ms |
14388 KB |
Output is correct |
| 16 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 17 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 18 |
Correct |
7 ms |
14392 KB |
Output is correct |
| 19 |
Correct |
8 ms |
14284 KB |
Output is correct |
| 20 |
Correct |
7 ms |
14412 KB |
Output is correct |
| 21 |
Correct |
9 ms |
14540 KB |
Output is correct |
| 22 |
Correct |
8 ms |
14636 KB |
Output is correct |
| 23 |
Correct |
8 ms |
14660 KB |
Output is correct |
| 24 |
Correct |
9 ms |
14668 KB |
Output is correct |
| 25 |
Correct |
9 ms |
14656 KB |
Output is correct |
| 26 |
Correct |
8 ms |
14668 KB |
Output is correct |
| 27 |
Correct |
8 ms |
14532 KB |
Output is correct |
| 28 |
Correct |
9 ms |
14664 KB |
Output is correct |
| 29 |
Correct |
9 ms |
14668 KB |
Output is correct |
| 30 |
Correct |
9 ms |
14644 KB |
Output is correct |
| 31 |
Correct |
9 ms |
14664 KB |
Output is correct |
| 32 |
Correct |
9 ms |
14656 KB |
Output is correct |
| 33 |
Correct |
11 ms |
14728 KB |
Output is correct |
| 34 |
Correct |
8 ms |
14524 KB |
Output is correct |
| 35 |
Correct |
8 ms |
14520 KB |
Output is correct |
| 36 |
Correct |
9 ms |
14536 KB |
Output is correct |
| 37 |
Correct |
8 ms |
14540 KB |
Output is correct |
| 38 |
Correct |
11 ms |
14652 KB |
Output is correct |
| 39 |
Correct |
124 ms |
35420 KB |
Output is correct |
| 40 |
Correct |
117 ms |
36164 KB |
Output is correct |
| 41 |
Correct |
122 ms |
35876 KB |
Output is correct |
| 42 |
Correct |
122 ms |
35428 KB |
Output is correct |
| 43 |
Correct |
169 ms |
48244 KB |
Output is correct |
| 44 |
Correct |
130 ms |
38856 KB |
Output is correct |
| 45 |
Correct |
119 ms |
35272 KB |
Output is correct |
| 46 |
Correct |
60 ms |
41904 KB |
Output is correct |
| 47 |
Correct |
192 ms |
46292 KB |
Output is correct |
| 48 |
Correct |
360 ms |
82336 KB |
Output is correct |
| 49 |
Correct |
307 ms |
80856 KB |
Output is correct |
| 50 |
Correct |
205 ms |
46332 KB |
Output is correct |
| 51 |
Correct |
190 ms |
46276 KB |
Output is correct |
| 52 |
Correct |
232 ms |
46424 KB |
Output is correct |
| 53 |
Correct |
225 ms |
51168 KB |
Output is correct |
| 54 |
Correct |
333 ms |
84024 KB |
Output is correct |
| 55 |
Correct |
22 ms |
17448 KB |
Output is correct |
| 56 |
Correct |
18 ms |
16232 KB |
Output is correct |
| 57 |
Correct |
74 ms |
33500 KB |
Output is correct |
| 58 |
Correct |
54 ms |
26748 KB |
Output is correct |
| 59 |
Correct |
105 ms |
48136 KB |
Output is correct |
| 60 |
Correct |
315 ms |
81196 KB |
Output is correct |
| 61 |
Correct |
215 ms |
49732 KB |
Output is correct |
| 62 |
Correct |
195 ms |
46328 KB |
Output is correct |
| 63 |
Correct |
229 ms |
46424 KB |
Output is correct |
| 64 |
Correct |
435 ms |
101484 KB |
Output is correct |
| 65 |
Correct |
427 ms |
99564 KB |
Output is correct |
| 66 |
Correct |
324 ms |
77988 KB |
Output is correct |
| 67 |
Correct |
181 ms |
40784 KB |
Output is correct |
| 68 |
Correct |
326 ms |
63252 KB |
Output is correct |
| 69 |
Correct |
361 ms |
68368 KB |
Output is correct |
| 70 |
Correct |
307 ms |
61392 KB |
Output is correct |
