#include "closing.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int max_score(int N, int X, int Y, ll K, vector<int> U, vector<int> V, vector<int> W) {
vector<vector<array<int, 2>>> adj(N);
for (int i = 0; i < N - 1; i++) {
adj[U[i]].push_back({V[i], W[i]});
adj[V[i]].push_back({U[i], W[i]});
}
auto bfs = [&](int s) {
vector<ll> dis(N);
vector<int> from(N, -1);
from[s] = s;
queue<int> q;
q.push(s);
while (!q.empty()) {
int x = q.front();
q.pop();
for (auto [y, z] : adj[x]) {
if (from[y] == -1) {
from[y] = x;
dis[y] = dis[x] + z;
q.push(y);
}
}
}
return make_pair(dis, from);
};
auto [dis_x, from_x] = bfs(X);
auto [dis_y, from_y] = bfs(Y);
vector<ll> one(N), two(N);
for (int i = 0; i < N; i++) {
tie(one[i], two[i]) = minmax(dis_x[i], dis_y[i]);
}
int ans = 0; {
auto a(one);
sort(a.begin(), a.end());
ll sum = 0;
while (ans < N && sum + a[ans] <= K) sum += a[ans++];
}
vector<int> path{X};
while (path.back() != Y) path.push_back(from_y[path.back()]);
int M = path.size();
vector<int> on_path(N);
for (auto x : path) on_path[x] = 1;
vector dp(N, vector(3, vector<ll>(2 * N + 1, 1e18)));
function<void(int, int)> dfs = [&](int x, int p) {
dp[x][1][1] = one[x];
dp[x][2][2] = two[x];
for (auto [y, z] : adj[x]) {
if (y == p || on_path[y]) continue;
dfs(y, x);
for (int i = 2 * N; i >= 0; i--) {
for (int j = i - 1; j >= 0; j--) {
dp[x][1][i] = min(dp[x][1][i], dp[y][1][i - j] + dp[x][1][j]);
dp[x][2][i] = min(dp[x][2][i], min(dp[y][1][j], dp[y][2][j]) + dp[x][2][i - j]);
}
}
}
};
for (auto x : path) dfs(x, -1);
// for (int i = 0; i < M; i++) {
// int x = path[i];
// cout << x + 1 << ":-----------------\n";
// for (int j = 1; j <= 2; j++) {
// cout << " " << j << ":\n";
// for (int k = 0; k <= 2 * N; k++) {
// if (dp[x][j][k] != 1e18) {
// cout << " " << k << " " << dp[x][j][k] << "\n";
// }
// }
// }
// }
vector f(M + 1, vector(3, vector<ll>(2 * N + 1, 1e18)));
f[0][0][0] = 0;
for (int i = 1; i <= M; i++) {
int x = path[i - 1];
for (int j = 0; j <= 2 * N; j++) {
for (int k = j; k <= 2 * N; k++) {
f[i][0][k] = min(f[i][0][k], f[i - 1][0][j] + dp[x][1][k - j]);
f[i][2][k] = min(f[i][2][k], min(f[i - 1][0][j], f[i - 1][2][j]) + dp[x][2][k - j]);
f[i][1][k] = min(f[i][1][k], min(f[i - 1][1][j], f[i - 1][2][j]) + dp[x][1][k - j]);
}
}
}
for (int i = 2 * N; i >= 0; i--) {
if (f[M][1][i] <= K || f[M][2][i] <= K) {
ans = max(ans, i);
}
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
878 ms |
2097152 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
352 KB |
Output is correct |
3 |
Correct |
1 ms |
436 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
432 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
608 KB |
Output is correct |
10 |
Correct |
1 ms |
696 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
352 KB |
Output is correct |
3 |
Correct |
1 ms |
436 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
432 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
608 KB |
Output is correct |
10 |
Correct |
1 ms |
696 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
4 ms |
860 KB |
Output is correct |
13 |
Correct |
4 ms |
952 KB |
Output is correct |
14 |
Correct |
4 ms |
860 KB |
Output is correct |
15 |
Correct |
3 ms |
876 KB |
Output is correct |
16 |
Correct |
5 ms |
1628 KB |
Output is correct |
17 |
Correct |
5 ms |
1372 KB |
Output is correct |
18 |
Correct |
2 ms |
348 KB |
Output is correct |
19 |
Correct |
364 ms |
12380 KB |
Output is correct |
20 |
Correct |
300 ms |
10392 KB |
Output is correct |
21 |
Correct |
396 ms |
18292 KB |
Output is correct |
22 |
Correct |
426 ms |
17492 KB |
Output is correct |
23 |
Correct |
539 ms |
24156 KB |
Output is correct |
24 |
Correct |
508 ms |
24152 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
352 KB |
Output is correct |
3 |
Correct |
1 ms |
436 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
432 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
608 KB |
Output is correct |
10 |
Correct |
1 ms |
696 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
4 ms |
860 KB |
Output is correct |
13 |
Correct |
4 ms |
952 KB |
Output is correct |
14 |
Correct |
4 ms |
860 KB |
Output is correct |
15 |
Correct |
3 ms |
876 KB |
Output is correct |
16 |
Correct |
5 ms |
1628 KB |
Output is correct |
17 |
Correct |
5 ms |
1372 KB |
Output is correct |
18 |
Correct |
2 ms |
348 KB |
Output is correct |
19 |
Correct |
364 ms |
12380 KB |
Output is correct |
20 |
Correct |
300 ms |
10392 KB |
Output is correct |
21 |
Correct |
396 ms |
18292 KB |
Output is correct |
22 |
Correct |
426 ms |
17492 KB |
Output is correct |
23 |
Correct |
539 ms |
24156 KB |
Output is correct |
24 |
Correct |
508 ms |
24152 KB |
Output is correct |
25 |
Correct |
31 ms |
752 KB |
Output is correct |
26 |
Execution timed out |
1073 ms |
424276 KB |
Time limit exceeded |
27 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
352 KB |
Output is correct |
4 |
Correct |
1 ms |
436 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
432 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
436 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
352 KB |
Output is correct |
4 |
Correct |
1 ms |
436 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
432 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
352 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
1 ms |
608 KB |
Output is correct |
11 |
Correct |
1 ms |
696 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
4 ms |
860 KB |
Output is correct |
14 |
Correct |
4 ms |
952 KB |
Output is correct |
15 |
Correct |
4 ms |
860 KB |
Output is correct |
16 |
Correct |
3 ms |
876 KB |
Output is correct |
17 |
Correct |
5 ms |
1628 KB |
Output is correct |
18 |
Correct |
5 ms |
1372 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
344 KB |
Output is correct |
31 |
Correct |
0 ms |
436 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
1 ms |
344 KB |
Output is correct |
38 |
Correct |
1 ms |
348 KB |
Output is correct |
39 |
Correct |
4 ms |
860 KB |
Output is correct |
40 |
Correct |
3 ms |
860 KB |
Output is correct |
41 |
Correct |
4 ms |
860 KB |
Output is correct |
42 |
Correct |
4 ms |
860 KB |
Output is correct |
43 |
Correct |
5 ms |
1116 KB |
Output is correct |
44 |
Correct |
4 ms |
860 KB |
Output is correct |
45 |
Correct |
4 ms |
936 KB |
Output is correct |
46 |
Correct |
5 ms |
864 KB |
Output is correct |
47 |
Correct |
4 ms |
864 KB |
Output is correct |
48 |
Correct |
3 ms |
832 KB |
Output is correct |
49 |
Correct |
2 ms |
600 KB |
Output is correct |
50 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
352 KB |
Output is correct |
4 |
Correct |
1 ms |
436 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
432 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
352 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
1 ms |
608 KB |
Output is correct |
11 |
Correct |
1 ms |
696 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
4 ms |
860 KB |
Output is correct |
14 |
Correct |
4 ms |
952 KB |
Output is correct |
15 |
Correct |
4 ms |
860 KB |
Output is correct |
16 |
Correct |
3 ms |
876 KB |
Output is correct |
17 |
Correct |
5 ms |
1628 KB |
Output is correct |
18 |
Correct |
5 ms |
1372 KB |
Output is correct |
19 |
Correct |
2 ms |
348 KB |
Output is correct |
20 |
Correct |
364 ms |
12380 KB |
Output is correct |
21 |
Correct |
300 ms |
10392 KB |
Output is correct |
22 |
Correct |
396 ms |
18292 KB |
Output is correct |
23 |
Correct |
426 ms |
17492 KB |
Output is correct |
24 |
Correct |
539 ms |
24156 KB |
Output is correct |
25 |
Correct |
508 ms |
24152 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
344 KB |
Output is correct |
38 |
Correct |
0 ms |
436 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
0 ms |
348 KB |
Output is correct |
42 |
Correct |
1 ms |
344 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
1 ms |
344 KB |
Output is correct |
45 |
Correct |
1 ms |
348 KB |
Output is correct |
46 |
Correct |
4 ms |
860 KB |
Output is correct |
47 |
Correct |
3 ms |
860 KB |
Output is correct |
48 |
Correct |
4 ms |
860 KB |
Output is correct |
49 |
Correct |
4 ms |
860 KB |
Output is correct |
50 |
Correct |
5 ms |
1116 KB |
Output is correct |
51 |
Correct |
4 ms |
860 KB |
Output is correct |
52 |
Correct |
4 ms |
936 KB |
Output is correct |
53 |
Correct |
5 ms |
864 KB |
Output is correct |
54 |
Correct |
4 ms |
864 KB |
Output is correct |
55 |
Correct |
3 ms |
832 KB |
Output is correct |
56 |
Correct |
2 ms |
600 KB |
Output is correct |
57 |
Correct |
1 ms |
344 KB |
Output is correct |
58 |
Correct |
2 ms |
348 KB |
Output is correct |
59 |
Correct |
13 ms |
860 KB |
Output is correct |
60 |
Correct |
19 ms |
1272 KB |
Output is correct |
61 |
Correct |
35 ms |
1704 KB |
Output is correct |
62 |
Correct |
34 ms |
1624 KB |
Output is correct |
63 |
Correct |
344 ms |
12340 KB |
Output is correct |
64 |
Correct |
288 ms |
10832 KB |
Output is correct |
65 |
Correct |
276 ms |
11096 KB |
Output is correct |
66 |
Correct |
292 ms |
10844 KB |
Output is correct |
67 |
Correct |
350 ms |
12120 KB |
Output is correct |
68 |
Correct |
382 ms |
19228 KB |
Output is correct |
69 |
Correct |
470 ms |
21280 KB |
Output is correct |
70 |
Correct |
354 ms |
13912 KB |
Output is correct |
71 |
Correct |
358 ms |
14932 KB |
Output is correct |
72 |
Correct |
309 ms |
11856 KB |
Output is correct |
73 |
Correct |
189 ms |
7700 KB |
Output is correct |
74 |
Correct |
192 ms |
8536 KB |
Output is correct |
75 |
Correct |
11 ms |
860 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
352 KB |
Output is correct |
4 |
Correct |
1 ms |
436 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
432 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
352 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
1 ms |
608 KB |
Output is correct |
11 |
Correct |
1 ms |
696 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
4 ms |
860 KB |
Output is correct |
14 |
Correct |
4 ms |
952 KB |
Output is correct |
15 |
Correct |
4 ms |
860 KB |
Output is correct |
16 |
Correct |
3 ms |
876 KB |
Output is correct |
17 |
Correct |
5 ms |
1628 KB |
Output is correct |
18 |
Correct |
5 ms |
1372 KB |
Output is correct |
19 |
Correct |
2 ms |
348 KB |
Output is correct |
20 |
Correct |
364 ms |
12380 KB |
Output is correct |
21 |
Correct |
300 ms |
10392 KB |
Output is correct |
22 |
Correct |
396 ms |
18292 KB |
Output is correct |
23 |
Correct |
426 ms |
17492 KB |
Output is correct |
24 |
Correct |
539 ms |
24156 KB |
Output is correct |
25 |
Correct |
508 ms |
24152 KB |
Output is correct |
26 |
Correct |
31 ms |
752 KB |
Output is correct |
27 |
Execution timed out |
1073 ms |
424276 KB |
Time limit exceeded |
28 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
352 KB |
Output is correct |
4 |
Correct |
1 ms |
436 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
432 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
352 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
1 ms |
608 KB |
Output is correct |
11 |
Correct |
1 ms |
696 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
4 ms |
860 KB |
Output is correct |
14 |
Correct |
4 ms |
952 KB |
Output is correct |
15 |
Correct |
4 ms |
860 KB |
Output is correct |
16 |
Correct |
3 ms |
876 KB |
Output is correct |
17 |
Correct |
5 ms |
1628 KB |
Output is correct |
18 |
Correct |
5 ms |
1372 KB |
Output is correct |
19 |
Correct |
2 ms |
348 KB |
Output is correct |
20 |
Correct |
364 ms |
12380 KB |
Output is correct |
21 |
Correct |
300 ms |
10392 KB |
Output is correct |
22 |
Correct |
396 ms |
18292 KB |
Output is correct |
23 |
Correct |
426 ms |
17492 KB |
Output is correct |
24 |
Correct |
539 ms |
24156 KB |
Output is correct |
25 |
Correct |
508 ms |
24152 KB |
Output is correct |
26 |
Correct |
31 ms |
752 KB |
Output is correct |
27 |
Execution timed out |
1073 ms |
424276 KB |
Time limit exceeded |
28 |
Halted |
0 ms |
0 KB |
- |