#include <bits/stdc++.h>
using namespace std;
int n;
vector<vector<int>> adjList;
vector<int> parent;
string isBased;
vector<int> dp;
int result = 0;
void depthFirstSearch(int u, int p)
{
int V = 0;
for (auto &v : adjList[u])
if (v != p)
{
depthFirstSearch(v, u);
dp[u] += dp[v];
if (dp[v] > dp[V])
V = v;
}
if (isBased[u] == '1')
{
result = max(dp[V] + 1, result);
dp[u] = max(1, dp[u] - 1);
}
result = max(dp[u], result);
}
int main()
{
// freopen("inp.txt", "r", stdin);
ios::sync_with_stdio(false);
cin >> n;
adjList.resize(n + 1);
parent.resize(n + 1);
for (int u, v, i = 1; i < n; i++)
{
cin >> u >> v;
adjList[u].emplace_back(v);
adjList[v].emplace_back(u);
}
cin >> isBased;
isBased = "!" + isBased;
dp.resize(n + 1);
depthFirstSearch(1, -1);
cout << result;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 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 |
1 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 |
0 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 |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 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 |
1 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 |
0 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 |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
2 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
468 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
468 KB |
Output is correct |
40 |
Correct |
1 ms |
468 KB |
Output is correct |
41 |
Correct |
1 ms |
468 KB |
Output is correct |
42 |
Correct |
1 ms |
468 KB |
Output is correct |
43 |
Correct |
1 ms |
468 KB |
Output is correct |
44 |
Correct |
1 ms |
468 KB |
Output is correct |
45 |
Correct |
1 ms |
468 KB |
Output is correct |
46 |
Correct |
1 ms |
468 KB |
Output is correct |
47 |
Correct |
1 ms |
468 KB |
Output is correct |
48 |
Correct |
1 ms |
468 KB |
Output is correct |
49 |
Correct |
1 ms |
468 KB |
Output is correct |
50 |
Correct |
1 ms |
468 KB |
Output is correct |
51 |
Correct |
1 ms |
468 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
468 KB |
Output is correct |
54 |
Correct |
1 ms |
468 KB |
Output is correct |
55 |
Correct |
1 ms |
468 KB |
Output is correct |
56 |
Correct |
1 ms |
340 KB |
Output is correct |
57 |
Correct |
1 ms |
468 KB |
Output is correct |
58 |
Correct |
1 ms |
340 KB |
Output is correct |
59 |
Correct |
1 ms |
340 KB |
Output is correct |
60 |
Correct |
1 ms |
468 KB |
Output is correct |
61 |
Correct |
1 ms |
340 KB |
Output is correct |
62 |
Correct |
1 ms |
468 KB |
Output is correct |
63 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 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 |
1 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 |
0 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 |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
2 ms |
340 KB |
Output is correct |
25 |
Correct |
3 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
468 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
468 KB |
Output is correct |
40 |
Correct |
1 ms |
468 KB |
Output is correct |
41 |
Correct |
1 ms |
468 KB |
Output is correct |
42 |
Correct |
1 ms |
468 KB |
Output is correct |
43 |
Correct |
1 ms |
468 KB |
Output is correct |
44 |
Correct |
1 ms |
468 KB |
Output is correct |
45 |
Correct |
1 ms |
468 KB |
Output is correct |
46 |
Correct |
1 ms |
468 KB |
Output is correct |
47 |
Correct |
1 ms |
468 KB |
Output is correct |
48 |
Correct |
1 ms |
468 KB |
Output is correct |
49 |
Correct |
1 ms |
468 KB |
Output is correct |
50 |
Correct |
1 ms |
468 KB |
Output is correct |
51 |
Correct |
1 ms |
468 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
468 KB |
Output is correct |
54 |
Correct |
1 ms |
468 KB |
Output is correct |
55 |
Correct |
1 ms |
468 KB |
Output is correct |
56 |
Correct |
1 ms |
340 KB |
Output is correct |
57 |
Correct |
1 ms |
468 KB |
Output is correct |
58 |
Correct |
1 ms |
340 KB |
Output is correct |
59 |
Correct |
1 ms |
340 KB |
Output is correct |
60 |
Correct |
1 ms |
468 KB |
Output is correct |
61 |
Correct |
1 ms |
340 KB |
Output is correct |
62 |
Correct |
1 ms |
468 KB |
Output is correct |
63 |
Correct |
1 ms |
340 KB |
Output is correct |
64 |
Correct |
71 ms |
13284 KB |
Output is correct |
65 |
Correct |
87 ms |
13212 KB |
Output is correct |
66 |
Correct |
71 ms |
13216 KB |
Output is correct |
67 |
Correct |
108 ms |
13228 KB |
Output is correct |
68 |
Correct |
86 ms |
13280 KB |
Output is correct |
69 |
Correct |
70 ms |
13172 KB |
Output is correct |
70 |
Correct |
69 ms |
13156 KB |
Output is correct |
71 |
Correct |
68 ms |
13148 KB |
Output is correct |
72 |
Correct |
75 ms |
13176 KB |
Output is correct |
73 |
Correct |
106 ms |
25804 KB |
Output is correct |
74 |
Correct |
92 ms |
25828 KB |
Output is correct |
75 |
Correct |
69 ms |
13128 KB |
Output is correct |
76 |
Correct |
92 ms |
13236 KB |
Output is correct |
77 |
Correct |
74 ms |
13096 KB |
Output is correct |
78 |
Correct |
72 ms |
13076 KB |
Output is correct |
79 |
Correct |
77 ms |
13136 KB |
Output is correct |
80 |
Correct |
99 ms |
13168 KB |
Output is correct |
81 |
Correct |
62 ms |
13648 KB |
Output is correct |
82 |
Correct |
88 ms |
13372 KB |
Output is correct |
83 |
Correct |
79 ms |
18312 KB |
Output is correct |
84 |
Correct |
86 ms |
20484 KB |
Output is correct |
85 |
Correct |
82 ms |
20100 KB |
Output is correct |
86 |
Correct |
123 ms |
14628 KB |
Output is correct |
87 |
Correct |
74 ms |
13992 KB |
Output is correct |
88 |
Correct |
72 ms |
14468 KB |
Output is correct |
89 |
Correct |
70 ms |
14444 KB |
Output is correct |
90 |
Correct |
76 ms |
14248 KB |
Output is correct |
91 |
Correct |
72 ms |
14544 KB |
Output is correct |
92 |
Correct |
75 ms |
14772 KB |
Output is correct |
93 |
Correct |
83 ms |
17260 KB |
Output is correct |
94 |
Correct |
72 ms |
19048 KB |
Output is correct |
95 |
Correct |
88 ms |
17572 KB |
Output is correct |
96 |
Correct |
70 ms |
15736 KB |
Output is correct |
97 |
Correct |
70 ms |
14308 KB |
Output is correct |
98 |
Correct |
67 ms |
13736 KB |
Output is correct |
99 |
Correct |
82 ms |
13560 KB |
Output is correct |
100 |
Correct |
73 ms |
16780 KB |
Output is correct |
101 |
Correct |
93 ms |
14668 KB |
Output is correct |
102 |
Correct |
84 ms |
13928 KB |
Output is correct |
103 |
Correct |
72 ms |
13784 KB |
Output is correct |
104 |
Correct |
50 ms |
13988 KB |
Output is correct |
105 |
Correct |
140 ms |
22700 KB |
Output is correct |
106 |
Correct |
51 ms |
14056 KB |
Output is correct |
107 |
Correct |
48 ms |
14016 KB |
Output is correct |
108 |
Correct |
88 ms |
26580 KB |
Output is correct |
109 |
Correct |
50 ms |
14016 KB |
Output is correct |
110 |
Correct |
89 ms |
26860 KB |
Output is correct |
111 |
Correct |
81 ms |
13144 KB |
Output is correct |