#include <bits/stdc++.h>
using namespace std;
int main() {
cin.tie(0)->sync_with_stdio(0);
int n;
cin >> n;
vector<vector<int>> adj(n);
for (auto i = 0; i < n - 1; ++i) {
int u, v;
cin >> u >> v;
--u, --v;
adj[u].emplace_back(v);
adj[v].emplace_back(u);
}
vector<bool> s(n);
auto ans = 0;
for (auto i = 0; i < n; ++i) {
char c;
cin >> c;
s[i] = (c == '1');
ans += int(s[i]);
}
ans = min(ans, 2);
auto f = [&](auto self, int u, int p) -> int {
auto sum = 0;
for (auto v : adj[u]) {
if (v != p) {
sum += self(self, v, u);
}
}
return (s[u] ? max(sum - 1, 1) : sum);
};
for (auto i = 0; i < n; ++i) {
ans = max(ans, f(f, i, i));
}
cout << ans << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
320 KB |
Output is correct |
6 |
Correct |
0 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
324 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
320 KB |
Output is correct |
6 |
Correct |
0 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
324 KB |
Output is correct |
22 |
Correct |
85 ms |
440 KB |
Output is correct |
23 |
Correct |
94 ms |
436 KB |
Output is correct |
24 |
Correct |
100 ms |
340 KB |
Output is correct |
25 |
Correct |
95 ms |
432 KB |
Output is correct |
26 |
Correct |
94 ms |
444 KB |
Output is correct |
27 |
Correct |
93 ms |
432 KB |
Output is correct |
28 |
Correct |
87 ms |
432 KB |
Output is correct |
29 |
Correct |
91 ms |
468 KB |
Output is correct |
30 |
Correct |
103 ms |
464 KB |
Output is correct |
31 |
Correct |
54 ms |
428 KB |
Output is correct |
32 |
Correct |
73 ms |
432 KB |
Output is correct |
33 |
Correct |
78 ms |
428 KB |
Output is correct |
34 |
Correct |
91 ms |
432 KB |
Output is correct |
35 |
Correct |
87 ms |
340 KB |
Output is correct |
36 |
Correct |
76 ms |
428 KB |
Output is correct |
37 |
Correct |
55 ms |
340 KB |
Output is correct |
38 |
Correct |
83 ms |
340 KB |
Output is correct |
39 |
Correct |
92 ms |
472 KB |
Output is correct |
40 |
Correct |
110 ms |
468 KB |
Output is correct |
41 |
Correct |
107 ms |
460 KB |
Output is correct |
42 |
Correct |
107 ms |
448 KB |
Output is correct |
43 |
Correct |
97 ms |
340 KB |
Output is correct |
44 |
Correct |
64 ms |
340 KB |
Output is correct |
45 |
Correct |
74 ms |
468 KB |
Output is correct |
46 |
Correct |
84 ms |
468 KB |
Output is correct |
47 |
Correct |
73 ms |
340 KB |
Output is correct |
48 |
Correct |
56 ms |
476 KB |
Output is correct |
49 |
Correct |
59 ms |
480 KB |
Output is correct |
50 |
Correct |
59 ms |
424 KB |
Output is correct |
51 |
Correct |
59 ms |
460 KB |
Output is correct |
52 |
Correct |
74 ms |
328 KB |
Output is correct |
53 |
Correct |
64 ms |
468 KB |
Output is correct |
54 |
Correct |
60 ms |
468 KB |
Output is correct |
55 |
Correct |
74 ms |
444 KB |
Output is correct |
56 |
Correct |
26 ms |
456 KB |
Output is correct |
57 |
Correct |
84 ms |
468 KB |
Output is correct |
58 |
Correct |
33 ms |
340 KB |
Output is correct |
59 |
Correct |
36 ms |
468 KB |
Output is correct |
60 |
Correct |
83 ms |
432 KB |
Output is correct |
61 |
Correct |
26 ms |
340 KB |
Output is correct |
62 |
Correct |
86 ms |
508 KB |
Output is correct |
63 |
Correct |
46 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
320 KB |
Output is correct |
6 |
Correct |
0 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
324 KB |
Output is correct |
22 |
Correct |
85 ms |
440 KB |
Output is correct |
23 |
Correct |
94 ms |
436 KB |
Output is correct |
24 |
Correct |
100 ms |
340 KB |
Output is correct |
25 |
Correct |
95 ms |
432 KB |
Output is correct |
26 |
Correct |
94 ms |
444 KB |
Output is correct |
27 |
Correct |
93 ms |
432 KB |
Output is correct |
28 |
Correct |
87 ms |
432 KB |
Output is correct |
29 |
Correct |
91 ms |
468 KB |
Output is correct |
30 |
Correct |
103 ms |
464 KB |
Output is correct |
31 |
Correct |
54 ms |
428 KB |
Output is correct |
32 |
Correct |
73 ms |
432 KB |
Output is correct |
33 |
Correct |
78 ms |
428 KB |
Output is correct |
34 |
Correct |
91 ms |
432 KB |
Output is correct |
35 |
Correct |
87 ms |
340 KB |
Output is correct |
36 |
Correct |
76 ms |
428 KB |
Output is correct |
37 |
Correct |
55 ms |
340 KB |
Output is correct |
38 |
Correct |
83 ms |
340 KB |
Output is correct |
39 |
Correct |
92 ms |
472 KB |
Output is correct |
40 |
Correct |
110 ms |
468 KB |
Output is correct |
41 |
Correct |
107 ms |
460 KB |
Output is correct |
42 |
Correct |
107 ms |
448 KB |
Output is correct |
43 |
Correct |
97 ms |
340 KB |
Output is correct |
44 |
Correct |
64 ms |
340 KB |
Output is correct |
45 |
Correct |
74 ms |
468 KB |
Output is correct |
46 |
Correct |
84 ms |
468 KB |
Output is correct |
47 |
Correct |
73 ms |
340 KB |
Output is correct |
48 |
Correct |
56 ms |
476 KB |
Output is correct |
49 |
Correct |
59 ms |
480 KB |
Output is correct |
50 |
Correct |
59 ms |
424 KB |
Output is correct |
51 |
Correct |
59 ms |
460 KB |
Output is correct |
52 |
Correct |
74 ms |
328 KB |
Output is correct |
53 |
Correct |
64 ms |
468 KB |
Output is correct |
54 |
Correct |
60 ms |
468 KB |
Output is correct |
55 |
Correct |
74 ms |
444 KB |
Output is correct |
56 |
Correct |
26 ms |
456 KB |
Output is correct |
57 |
Correct |
84 ms |
468 KB |
Output is correct |
58 |
Correct |
33 ms |
340 KB |
Output is correct |
59 |
Correct |
36 ms |
468 KB |
Output is correct |
60 |
Correct |
83 ms |
432 KB |
Output is correct |
61 |
Correct |
26 ms |
340 KB |
Output is correct |
62 |
Correct |
86 ms |
508 KB |
Output is correct |
63 |
Correct |
46 ms |
340 KB |
Output is correct |
64 |
Execution timed out |
1586 ms |
14152 KB |
Time limit exceeded |
65 |
Halted |
0 ms |
0 KB |
- |