# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
1037477 |
2024-07-28T23:50:46 Z |
ArthuroWich |
Race (IOI11_race) |
C++17 |
|
902 ms |
41296 KB |
#include "race.h"
#include<bits/stdc++.h>
using namespace std;
int n, k, ans = INT_MAX, proc[200005], si[200005];
vector<pair<int, int>> adj[200005];
map<int, int> occ[2];
void dfs(int i, int p) {
si[i] = 1;
for (auto [j, _] : adj[i]) {
if (proc[j] || j == p) {
continue;
}
dfs(j, i);
si[i] += si[j];
}
}
int centroid(int i, int p, int s) {
for (auto [j, w] : adj[i]) {
if (proc[j] || j == p) {
continue;
}
if (si[j] > s/2) {
return centroid(j, i, s);
}
}
return i;
}
void calc(int i, int p, int d, int path) {
if (path > k) {
return;
}
if (occ[1].find(path) == occ[1].end()) {
occ[1][path] = d;
} else {
occ[1][path] = min(occ[1][path], d);
}
if (k == path) {
ans = min(ans, d);
} else if (occ[0].find(k-path) != occ[0].end()) {
ans = min(ans, d+occ[0][k-path]);
}
for (auto [j, w] : adj[i]) {
if (proc[j] || j == p) {
continue;
}
calc(j, i, d+1, path+w);
}
}
void decompose(int i) {
dfs(i, -1);
if (si[i] == 1) {
return;
}
i = centroid(i, -1, si[i]);
proc[i] = 1;
for (auto [j, w] : adj[i]) {
if (proc[j]) {
continue;
}
calc(j, i, 1, w);
if (occ[0].size() < occ[1].size()) {
occ[0].swap(occ[1]);
}
for (auto c : occ[1]) {
if (occ[0].find(c.first) != occ[0].end()) {
occ[0][c.first] = min(occ[0][c.first], c.second);
} else {
occ[0][c.first] = c.second;
}
}
occ[1].clear();
}
occ[0].clear();
for (auto [j, w] : adj[i]) {
if (proc[j]) {
continue;
}
decompose(j);
}
}
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]].push_back({H[i][1], L[i]});
adj[H[i][1]].push_back({H[i][0], L[i]});
}
decompose(1);
if (ans == INT_MAX) {
return -1;
} else {
return ans;
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8796 KB |
Output is correct |
2 |
Correct |
1 ms |
8796 KB |
Output is correct |
3 |
Correct |
1 ms |
8796 KB |
Output is correct |
4 |
Correct |
1 ms |
8796 KB |
Output is correct |
5 |
Correct |
2 ms |
8796 KB |
Output is correct |
6 |
Correct |
2 ms |
8792 KB |
Output is correct |
7 |
Correct |
2 ms |
8796 KB |
Output is correct |
8 |
Correct |
2 ms |
8796 KB |
Output is correct |
9 |
Correct |
1 ms |
8796 KB |
Output is correct |
10 |
Correct |
1 ms |
8796 KB |
Output is correct |
11 |
Correct |
1 ms |
8796 KB |
Output is correct |
12 |
Correct |
1 ms |
8796 KB |
Output is correct |
13 |
Correct |
1 ms |
8796 KB |
Output is correct |
14 |
Correct |
1 ms |
8796 KB |
Output is correct |
15 |
Correct |
1 ms |
8796 KB |
Output is correct |
16 |
Correct |
2 ms |
8796 KB |
Output is correct |
17 |
Correct |
2 ms |
8796 KB |
Output is correct |
18 |
Correct |
1 ms |
8796 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8796 KB |
Output is correct |
2 |
Correct |
1 ms |
8796 KB |
Output is correct |
3 |
Correct |
1 ms |
8796 KB |
Output is correct |
4 |
Correct |
1 ms |
8796 KB |
Output is correct |
5 |
Correct |
2 ms |
8796 KB |
Output is correct |
6 |
Correct |
2 ms |
8792 KB |
Output is correct |
7 |
Correct |
2 ms |
8796 KB |
Output is correct |
8 |
Correct |
2 ms |
8796 KB |
Output is correct |
9 |
Correct |
1 ms |
8796 KB |
Output is correct |
10 |
Correct |
1 ms |
8796 KB |
Output is correct |
11 |
Correct |
1 ms |
8796 KB |
Output is correct |
12 |
Correct |
1 ms |
8796 KB |
Output is correct |
13 |
Correct |
1 ms |
8796 KB |
Output is correct |
14 |
Correct |
1 ms |
8796 KB |
Output is correct |
15 |
Correct |
1 ms |
8796 KB |
Output is correct |
16 |
Correct |
2 ms |
8796 KB |
Output is correct |
17 |
Correct |
2 ms |
8796 KB |
Output is correct |
18 |
Correct |
1 ms |
8796 KB |
Output is correct |
19 |
Correct |
2 ms |
8796 KB |
Output is correct |
20 |
Correct |
1 ms |
8796 KB |
Output is correct |
21 |
Correct |
3 ms |
8792 KB |
Output is correct |
22 |
Correct |
3 ms |
8796 KB |
Output is correct |
23 |
Correct |
1 ms |
8796 KB |
Output is correct |
24 |
Correct |
3 ms |
8796 KB |
Output is correct |
25 |
Correct |
2 ms |
8796 KB |
Output is correct |
26 |
Correct |
2 ms |
8796 KB |
Output is correct |
27 |
Correct |
2 ms |
8796 KB |
Output is correct |
28 |
Correct |
2 ms |
8796 KB |
Output is correct |
29 |
Correct |
2 ms |
8796 KB |
Output is correct |
30 |
Correct |
2 ms |
8796 KB |
Output is correct |
31 |
Correct |
2 ms |
8796 KB |
Output is correct |
32 |
Correct |
2 ms |
8796 KB |
Output is correct |
33 |
Correct |
4 ms |
8796 KB |
Output is correct |
34 |
Correct |
2 ms |
8796 KB |
Output is correct |
35 |
Correct |
2 ms |
8796 KB |
Output is correct |
36 |
Correct |
2 ms |
8796 KB |
Output is correct |
37 |
Correct |
2 ms |
8796 KB |
Output is correct |
38 |
Correct |
4 ms |
8796 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8796 KB |
Output is correct |
2 |
Correct |
1 ms |
8796 KB |
Output is correct |
3 |
Correct |
1 ms |
8796 KB |
Output is correct |
4 |
Correct |
1 ms |
8796 KB |
Output is correct |
5 |
Correct |
2 ms |
8796 KB |
Output is correct |
6 |
Correct |
2 ms |
8792 KB |
Output is correct |
7 |
Correct |
2 ms |
8796 KB |
Output is correct |
8 |
Correct |
2 ms |
8796 KB |
Output is correct |
9 |
Correct |
1 ms |
8796 KB |
Output is correct |
10 |
Correct |
1 ms |
8796 KB |
Output is correct |
11 |
Correct |
1 ms |
8796 KB |
Output is correct |
12 |
Correct |
1 ms |
8796 KB |
Output is correct |
13 |
Correct |
1 ms |
8796 KB |
Output is correct |
14 |
Correct |
1 ms |
8796 KB |
Output is correct |
15 |
Correct |
1 ms |
8796 KB |
Output is correct |
16 |
Correct |
2 ms |
8796 KB |
Output is correct |
17 |
Correct |
2 ms |
8796 KB |
Output is correct |
18 |
Correct |
1 ms |
8796 KB |
Output is correct |
19 |
Correct |
149 ms |
15284 KB |
Output is correct |
20 |
Correct |
127 ms |
15288 KB |
Output is correct |
21 |
Correct |
127 ms |
15448 KB |
Output is correct |
22 |
Correct |
134 ms |
15520 KB |
Output is correct |
23 |
Correct |
47 ms |
15444 KB |
Output is correct |
24 |
Correct |
49 ms |
15360 KB |
Output is correct |
25 |
Correct |
91 ms |
21960 KB |
Output is correct |
26 |
Correct |
60 ms |
22660 KB |
Output is correct |
27 |
Correct |
111 ms |
20052 KB |
Output is correct |
28 |
Correct |
165 ms |
33272 KB |
Output is correct |
29 |
Correct |
140 ms |
28132 KB |
Output is correct |
30 |
Correct |
113 ms |
19960 KB |
Output is correct |
31 |
Correct |
132 ms |
20048 KB |
Output is correct |
32 |
Correct |
112 ms |
20108 KB |
Output is correct |
33 |
Correct |
174 ms |
18936 KB |
Output is correct |
34 |
Correct |
126 ms |
18768 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8796 KB |
Output is correct |
2 |
Correct |
1 ms |
8796 KB |
Output is correct |
3 |
Correct |
1 ms |
8796 KB |
Output is correct |
4 |
Correct |
1 ms |
8796 KB |
Output is correct |
5 |
Correct |
2 ms |
8796 KB |
Output is correct |
6 |
Correct |
2 ms |
8792 KB |
Output is correct |
7 |
Correct |
2 ms |
8796 KB |
Output is correct |
8 |
Correct |
2 ms |
8796 KB |
Output is correct |
9 |
Correct |
1 ms |
8796 KB |
Output is correct |
10 |
Correct |
1 ms |
8796 KB |
Output is correct |
11 |
Correct |
1 ms |
8796 KB |
Output is correct |
12 |
Correct |
1 ms |
8796 KB |
Output is correct |
13 |
Correct |
1 ms |
8796 KB |
Output is correct |
14 |
Correct |
1 ms |
8796 KB |
Output is correct |
15 |
Correct |
1 ms |
8796 KB |
Output is correct |
16 |
Correct |
2 ms |
8796 KB |
Output is correct |
17 |
Correct |
2 ms |
8796 KB |
Output is correct |
18 |
Correct |
1 ms |
8796 KB |
Output is correct |
19 |
Correct |
2 ms |
8796 KB |
Output is correct |
20 |
Correct |
1 ms |
8796 KB |
Output is correct |
21 |
Correct |
3 ms |
8792 KB |
Output is correct |
22 |
Correct |
3 ms |
8796 KB |
Output is correct |
23 |
Correct |
1 ms |
8796 KB |
Output is correct |
24 |
Correct |
3 ms |
8796 KB |
Output is correct |
25 |
Correct |
2 ms |
8796 KB |
Output is correct |
26 |
Correct |
2 ms |
8796 KB |
Output is correct |
27 |
Correct |
2 ms |
8796 KB |
Output is correct |
28 |
Correct |
2 ms |
8796 KB |
Output is correct |
29 |
Correct |
2 ms |
8796 KB |
Output is correct |
30 |
Correct |
2 ms |
8796 KB |
Output is correct |
31 |
Correct |
2 ms |
8796 KB |
Output is correct |
32 |
Correct |
2 ms |
8796 KB |
Output is correct |
33 |
Correct |
4 ms |
8796 KB |
Output is correct |
34 |
Correct |
2 ms |
8796 KB |
Output is correct |
35 |
Correct |
2 ms |
8796 KB |
Output is correct |
36 |
Correct |
2 ms |
8796 KB |
Output is correct |
37 |
Correct |
2 ms |
8796 KB |
Output is correct |
38 |
Correct |
4 ms |
8796 KB |
Output is correct |
39 |
Correct |
149 ms |
15284 KB |
Output is correct |
40 |
Correct |
127 ms |
15288 KB |
Output is correct |
41 |
Correct |
127 ms |
15448 KB |
Output is correct |
42 |
Correct |
134 ms |
15520 KB |
Output is correct |
43 |
Correct |
47 ms |
15444 KB |
Output is correct |
44 |
Correct |
49 ms |
15360 KB |
Output is correct |
45 |
Correct |
91 ms |
21960 KB |
Output is correct |
46 |
Correct |
60 ms |
22660 KB |
Output is correct |
47 |
Correct |
111 ms |
20052 KB |
Output is correct |
48 |
Correct |
165 ms |
33272 KB |
Output is correct |
49 |
Correct |
140 ms |
28132 KB |
Output is correct |
50 |
Correct |
113 ms |
19960 KB |
Output is correct |
51 |
Correct |
132 ms |
20048 KB |
Output is correct |
52 |
Correct |
112 ms |
20108 KB |
Output is correct |
53 |
Correct |
174 ms |
18936 KB |
Output is correct |
54 |
Correct |
126 ms |
18768 KB |
Output is correct |
55 |
Correct |
23 ms |
9448 KB |
Output is correct |
56 |
Correct |
10 ms |
9052 KB |
Output is correct |
57 |
Correct |
88 ms |
15408 KB |
Output is correct |
58 |
Correct |
30 ms |
15308 KB |
Output is correct |
59 |
Correct |
266 ms |
28500 KB |
Output is correct |
60 |
Correct |
767 ms |
41296 KB |
Output is correct |
61 |
Correct |
244 ms |
20224 KB |
Output is correct |
62 |
Correct |
280 ms |
20052 KB |
Output is correct |
63 |
Correct |
276 ms |
20308 KB |
Output is correct |
64 |
Correct |
902 ms |
26252 KB |
Output is correct |
65 |
Correct |
179 ms |
19792 KB |
Output is correct |
66 |
Correct |
527 ms |
32080 KB |
Output is correct |
67 |
Correct |
93 ms |
20416 KB |
Output is correct |
68 |
Correct |
334 ms |
23888 KB |
Output is correct |
69 |
Correct |
299 ms |
23888 KB |
Output is correct |
70 |
Correct |
326 ms |
23340 KB |
Output is correct |