| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 500892 |
2022-01-01T15:09:22 Z |
aymanrs |
Race (IOI11_race) |
C++14 |
|
581 ms |
109176 KB |
#include <bits/stdc++.h>
using namespace std;
struct node {
list<pair<node*, int>> l;
int subtree = 1;
set<pair<long long, int>>* s = nullptr;
};
int m = 1e9, k;
void dfs(node* n, node* parent, long long sum, int depth){
int ms = -1;
node* mc = nullptr;
for(auto p : n->l){
if(p.first != parent){
dfs(p.first, n, sum + p.second, depth + 1);
n->subtree += p.first->subtree;
if(p.first->subtree > ms){
ms = p.first->subtree;
mc = p.first;
}
}
}
if(ms == -1){
n->s = new set<pair<long long, int>>();
} else {
n->s = mc->s;
}
n->s->insert({sum, depth});
for(auto p : n->l){
if(p.first != parent && p.first != mc){
for(auto f : *p.first->s){
long long target = k + 2 * sum - f.first;
auto it = n->s->lower_bound({target, 0});
if(it != n->s->end() && it->first == target){
if(f.second + it->second - 2 * depth < m) m = f.second + it->second - 2 * depth;
}
}
for(auto f : *p.first->s){
n->s->insert(f);
}
}
}
auto it = n->s->lower_bound({k + sum, 0});
if(it != n->s->end() && it->first == k + sum){
if(depth + it->second - 2 * depth < m) m = depth + it->second - 2 * depth;
}
}
int best_path(int N, int K, int H[][2], int L[]){
k = K;
node nodes[N+1];
int u, v, c;
for(int i = 0;i < N-1;i++){
u = H[i][0];
v = H[i][1];
c = L[i];
nodes[u].l.push_back({&nodes[v], c});
nodes[v].l.push_back({&nodes[u], c});
}
dfs(&nodes[1], nullptr, 0, 0);
map<set<pair<long long, int>>*, bool> del;
for(int i = 1;i <= N;i++) {
if(del[nodes[i].s]) continue;
delete nodes[i].s;
del[nodes[i].s] = true;
}
return m == 1e9 ? -1 : m;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
296 KB |
Output is correct |
| 3 |
Correct |
1 ms |
296 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
304 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
288 KB |
Output is correct |
| 12 |
Correct |
1 ms |
288 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
296 KB |
Output is correct |
| 3 |
Correct |
1 ms |
296 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
304 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
288 KB |
Output is correct |
| 12 |
Correct |
1 ms |
288 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
292 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
2 ms |
560 KB |
Output is correct |
| 22 |
Correct |
1 ms |
588 KB |
Output is correct |
| 23 |
Correct |
2 ms |
568 KB |
Output is correct |
| 24 |
Correct |
3 ms |
692 KB |
Output is correct |
| 25 |
Correct |
1 ms |
588 KB |
Output is correct |
| 26 |
Correct |
1 ms |
588 KB |
Output is correct |
| 27 |
Correct |
1 ms |
420 KB |
Output is correct |
| 28 |
Correct |
2 ms |
588 KB |
Output is correct |
| 29 |
Correct |
2 ms |
588 KB |
Output is correct |
| 30 |
Correct |
1 ms |
580 KB |
Output is correct |
| 31 |
Correct |
2 ms |
588 KB |
Output is correct |
| 32 |
Correct |
1 ms |
588 KB |
Output is correct |
| 33 |
Correct |
2 ms |
588 KB |
Output is correct |
| 34 |
Correct |
1 ms |
588 KB |
Output is correct |
| 35 |
Correct |
1 ms |
560 KB |
Output is correct |
| 36 |
Correct |
1 ms |
460 KB |
Output is correct |
| 37 |
Correct |
1 ms |
460 KB |
Output is correct |
| 38 |
Correct |
1 ms |
564 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
296 KB |
Output is correct |
| 3 |
Correct |
1 ms |
296 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
304 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
288 KB |
Output is correct |
| 12 |
Correct |
1 ms |
288 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
201 ms |
34592 KB |
Output is correct |
| 20 |
Correct |
165 ms |
34368 KB |
Output is correct |
| 21 |
Correct |
197 ms |
34096 KB |
Output is correct |
| 22 |
Correct |
221 ms |
33740 KB |
Output is correct |
| 23 |
Correct |
240 ms |
49024 KB |
Output is correct |
| 24 |
Correct |
206 ms |
39968 KB |
Output is correct |
| 25 |
Correct |
118 ms |
37072 KB |
Output is correct |
| 26 |
Correct |
84 ms |
38024 KB |
Output is correct |
| 27 |
Correct |
257 ms |
54164 KB |
Output is correct |
| 28 |
Correct |
272 ms |
74836 KB |
Output is correct |
| 29 |
Correct |
296 ms |
68552 KB |
Output is correct |
| 30 |
Correct |
250 ms |
54376 KB |
Output is correct |
| 31 |
Correct |
277 ms |
54128 KB |
Output is correct |
| 32 |
Correct |
360 ms |
54212 KB |
Output is correct |
| 33 |
Correct |
244 ms |
45012 KB |
Output is correct |
| 34 |
Correct |
314 ms |
78880 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
296 KB |
Output is correct |
| 3 |
Correct |
1 ms |
296 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
304 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
288 KB |
Output is correct |
| 12 |
Correct |
1 ms |
288 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
332 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
292 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
2 ms |
560 KB |
Output is correct |
| 22 |
Correct |
1 ms |
588 KB |
Output is correct |
| 23 |
Correct |
2 ms |
568 KB |
Output is correct |
| 24 |
Correct |
3 ms |
692 KB |
Output is correct |
| 25 |
Correct |
1 ms |
588 KB |
Output is correct |
| 26 |
Correct |
1 ms |
588 KB |
Output is correct |
| 27 |
Correct |
1 ms |
420 KB |
Output is correct |
| 28 |
Correct |
2 ms |
588 KB |
Output is correct |
| 29 |
Correct |
2 ms |
588 KB |
Output is correct |
| 30 |
Correct |
1 ms |
580 KB |
Output is correct |
| 31 |
Correct |
2 ms |
588 KB |
Output is correct |
| 32 |
Correct |
1 ms |
588 KB |
Output is correct |
| 33 |
Correct |
2 ms |
588 KB |
Output is correct |
| 34 |
Correct |
1 ms |
588 KB |
Output is correct |
| 35 |
Correct |
1 ms |
560 KB |
Output is correct |
| 36 |
Correct |
1 ms |
460 KB |
Output is correct |
| 37 |
Correct |
1 ms |
460 KB |
Output is correct |
| 38 |
Correct |
1 ms |
564 KB |
Output is correct |
| 39 |
Correct |
201 ms |
34592 KB |
Output is correct |
| 40 |
Correct |
165 ms |
34368 KB |
Output is correct |
| 41 |
Correct |
197 ms |
34096 KB |
Output is correct |
| 42 |
Correct |
221 ms |
33740 KB |
Output is correct |
| 43 |
Correct |
240 ms |
49024 KB |
Output is correct |
| 44 |
Correct |
206 ms |
39968 KB |
Output is correct |
| 45 |
Correct |
118 ms |
37072 KB |
Output is correct |
| 46 |
Correct |
84 ms |
38024 KB |
Output is correct |
| 47 |
Correct |
257 ms |
54164 KB |
Output is correct |
| 48 |
Correct |
272 ms |
74836 KB |
Output is correct |
| 49 |
Correct |
296 ms |
68552 KB |
Output is correct |
| 50 |
Correct |
250 ms |
54376 KB |
Output is correct |
| 51 |
Correct |
277 ms |
54128 KB |
Output is correct |
| 52 |
Correct |
360 ms |
54212 KB |
Output is correct |
| 53 |
Correct |
244 ms |
45012 KB |
Output is correct |
| 54 |
Correct |
314 ms |
78880 KB |
Output is correct |
| 55 |
Correct |
15 ms |
4432 KB |
Output is correct |
| 56 |
Correct |
10 ms |
3128 KB |
Output is correct |
| 57 |
Correct |
96 ms |
31404 KB |
Output is correct |
| 58 |
Correct |
99 ms |
28348 KB |
Output is correct |
| 59 |
Correct |
75 ms |
38000 KB |
Output is correct |
| 60 |
Correct |
247 ms |
66876 KB |
Output is correct |
| 61 |
Correct |
290 ms |
60044 KB |
Output is correct |
| 62 |
Correct |
256 ms |
54224 KB |
Output is correct |
| 63 |
Correct |
349 ms |
54172 KB |
Output is correct |
| 64 |
Correct |
557 ms |
109176 KB |
Output is correct |
| 65 |
Correct |
581 ms |
102460 KB |
Output is correct |
| 66 |
Correct |
239 ms |
73372 KB |
Output is correct |
| 67 |
Correct |
440 ms |
57540 KB |
Output is correct |
| 68 |
Correct |
458 ms |
72772 KB |
Output is correct |
| 69 |
Correct |
560 ms |
74040 KB |
Output is correct |
| 70 |
Correct |
438 ms |
69696 KB |
Output is correct |
