#include <cstdio>
#include <cstring>
#include <cassert>
#include <string>
#include <deque>
#include <vector>
#include <map>
#include <queue>
#include <algorithm>
#include <iostream>
#include <utility>
using namespace std;
using ll = long long;
using ld = long double;
#define ShinLena cin.tie(nullptr)->sync_with_stdio(false)
#define N 200005
#define ALL(x) x.begin(), x.end()
int n, ans, f[N], h[N], pwr[N];
vector<int> g[N];
char s[N];
void dfs(int u, int p)
{
for (auto v:g[u]) if(v-p)
{
dfs(v, u);
if(s[u]=='1')f[u]+=f[v],h[u]=max(h[u],f[v]+1);
else f[u]+=max(f[v],h[v]-2),h[u]=max(h[u],f[v]);
}
if(s[u]=='1')f[u]=max(1,f[u]-1),h[u]=max(h[u],1);
ans=max({ans,f[u],h[u]});
}
int main()
{
ShinLena;
cin >> n;
for (int i = 1, u, v; i < n; ++i) cin >> u >> v, g[u].push_back(v), g[v].push_back(u);
cin >> (s+1);
dfs(1, 0);
cout<<ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
6492 KB |
Output is correct |
2 |
Correct |
2 ms |
6492 KB |
Output is correct |
3 |
Correct |
1 ms |
6492 KB |
Output is correct |
4 |
Correct |
1 ms |
6492 KB |
Output is correct |
5 |
Correct |
1 ms |
6492 KB |
Output is correct |
6 |
Correct |
1 ms |
6648 KB |
Output is correct |
7 |
Correct |
2 ms |
6492 KB |
Output is correct |
8 |
Correct |
1 ms |
6492 KB |
Output is correct |
9 |
Correct |
1 ms |
6492 KB |
Output is correct |
10 |
Correct |
1 ms |
6492 KB |
Output is correct |
11 |
Correct |
1 ms |
6492 KB |
Output is correct |
12 |
Correct |
1 ms |
6492 KB |
Output is correct |
13 |
Correct |
1 ms |
6492 KB |
Output is correct |
14 |
Correct |
1 ms |
6488 KB |
Output is correct |
15 |
Correct |
1 ms |
6492 KB |
Output is correct |
16 |
Correct |
1 ms |
6492 KB |
Output is correct |
17 |
Correct |
1 ms |
6492 KB |
Output is correct |
18 |
Correct |
1 ms |
6744 KB |
Output is correct |
19 |
Correct |
2 ms |
6748 KB |
Output is correct |
20 |
Correct |
1 ms |
6492 KB |
Output is correct |
21 |
Correct |
1 ms |
6620 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
6492 KB |
Output is correct |
2 |
Correct |
2 ms |
6492 KB |
Output is correct |
3 |
Correct |
1 ms |
6492 KB |
Output is correct |
4 |
Correct |
1 ms |
6492 KB |
Output is correct |
5 |
Correct |
1 ms |
6492 KB |
Output is correct |
6 |
Correct |
1 ms |
6648 KB |
Output is correct |
7 |
Correct |
2 ms |
6492 KB |
Output is correct |
8 |
Correct |
1 ms |
6492 KB |
Output is correct |
9 |
Correct |
1 ms |
6492 KB |
Output is correct |
10 |
Correct |
1 ms |
6492 KB |
Output is correct |
11 |
Correct |
1 ms |
6492 KB |
Output is correct |
12 |
Correct |
1 ms |
6492 KB |
Output is correct |
13 |
Correct |
1 ms |
6492 KB |
Output is correct |
14 |
Correct |
1 ms |
6488 KB |
Output is correct |
15 |
Correct |
1 ms |
6492 KB |
Output is correct |
16 |
Correct |
1 ms |
6492 KB |
Output is correct |
17 |
Correct |
1 ms |
6492 KB |
Output is correct |
18 |
Correct |
1 ms |
6744 KB |
Output is correct |
19 |
Correct |
2 ms |
6748 KB |
Output is correct |
20 |
Correct |
1 ms |
6492 KB |
Output is correct |
21 |
Correct |
1 ms |
6620 KB |
Output is correct |
22 |
Correct |
2 ms |
6488 KB |
Output is correct |
23 |
Correct |
2 ms |
6492 KB |
Output is correct |
24 |
Correct |
2 ms |
6492 KB |
Output is correct |
25 |
Correct |
2 ms |
6492 KB |
Output is correct |
26 |
Correct |
2 ms |
6492 KB |
Output is correct |
27 |
Correct |
2 ms |
6492 KB |
Output is correct |
28 |
Correct |
2 ms |
6488 KB |
Output is correct |
29 |
Correct |
2 ms |
6744 KB |
Output is correct |
30 |
Correct |
2 ms |
6748 KB |
Output is correct |
31 |
Correct |
2 ms |
6492 KB |
Output is correct |
32 |
Correct |
2 ms |
6492 KB |
Output is correct |
33 |
Correct |
2 ms |
6492 KB |
Output is correct |
34 |
Correct |
2 ms |
6492 KB |
Output is correct |
35 |
Correct |
2 ms |
6692 KB |
Output is correct |
36 |
Correct |
2 ms |
6632 KB |
Output is correct |
37 |
Correct |
2 ms |
6656 KB |
Output is correct |
38 |
Correct |
2 ms |
6628 KB |
Output is correct |
39 |
Correct |
2 ms |
6632 KB |
Output is correct |
40 |
Correct |
2 ms |
6748 KB |
Output is correct |
41 |
Correct |
2 ms |
6748 KB |
Output is correct |
42 |
Correct |
2 ms |
6492 KB |
Output is correct |
43 |
Correct |
2 ms |
6632 KB |
Output is correct |
44 |
Correct |
2 ms |
6748 KB |
Output is correct |
45 |
Correct |
2 ms |
6748 KB |
Output is correct |
46 |
Correct |
2 ms |
6492 KB |
Output is correct |
47 |
Correct |
2 ms |
6580 KB |
Output is correct |
48 |
Correct |
2 ms |
6748 KB |
Output is correct |
49 |
Correct |
2 ms |
6748 KB |
Output is correct |
50 |
Correct |
2 ms |
6744 KB |
Output is correct |
51 |
Correct |
2 ms |
6744 KB |
Output is correct |
52 |
Correct |
2 ms |
6488 KB |
Output is correct |
53 |
Correct |
2 ms |
6632 KB |
Output is correct |
54 |
Correct |
2 ms |
6492 KB |
Output is correct |
55 |
Correct |
2 ms |
6492 KB |
Output is correct |
56 |
Correct |
2 ms |
6492 KB |
Output is correct |
57 |
Correct |
2 ms |
6748 KB |
Output is correct |
58 |
Correct |
2 ms |
6488 KB |
Output is correct |
59 |
Correct |
2 ms |
6492 KB |
Output is correct |
60 |
Correct |
2 ms |
6744 KB |
Output is correct |
61 |
Correct |
1 ms |
6492 KB |
Output is correct |
62 |
Correct |
2 ms |
6748 KB |
Output is correct |
63 |
Correct |
2 ms |
6492 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
6492 KB |
Output is correct |
2 |
Correct |
2 ms |
6492 KB |
Output is correct |
3 |
Correct |
1 ms |
6492 KB |
Output is correct |
4 |
Correct |
1 ms |
6492 KB |
Output is correct |
5 |
Correct |
1 ms |
6492 KB |
Output is correct |
6 |
Correct |
1 ms |
6648 KB |
Output is correct |
7 |
Correct |
2 ms |
6492 KB |
Output is correct |
8 |
Correct |
1 ms |
6492 KB |
Output is correct |
9 |
Correct |
1 ms |
6492 KB |
Output is correct |
10 |
Correct |
1 ms |
6492 KB |
Output is correct |
11 |
Correct |
1 ms |
6492 KB |
Output is correct |
12 |
Correct |
1 ms |
6492 KB |
Output is correct |
13 |
Correct |
1 ms |
6492 KB |
Output is correct |
14 |
Correct |
1 ms |
6488 KB |
Output is correct |
15 |
Correct |
1 ms |
6492 KB |
Output is correct |
16 |
Correct |
1 ms |
6492 KB |
Output is correct |
17 |
Correct |
1 ms |
6492 KB |
Output is correct |
18 |
Correct |
1 ms |
6744 KB |
Output is correct |
19 |
Correct |
2 ms |
6748 KB |
Output is correct |
20 |
Correct |
1 ms |
6492 KB |
Output is correct |
21 |
Correct |
1 ms |
6620 KB |
Output is correct |
22 |
Correct |
2 ms |
6488 KB |
Output is correct |
23 |
Correct |
2 ms |
6492 KB |
Output is correct |
24 |
Correct |
2 ms |
6492 KB |
Output is correct |
25 |
Correct |
2 ms |
6492 KB |
Output is correct |
26 |
Correct |
2 ms |
6492 KB |
Output is correct |
27 |
Correct |
2 ms |
6492 KB |
Output is correct |
28 |
Correct |
2 ms |
6488 KB |
Output is correct |
29 |
Correct |
2 ms |
6744 KB |
Output is correct |
30 |
Correct |
2 ms |
6748 KB |
Output is correct |
31 |
Correct |
2 ms |
6492 KB |
Output is correct |
32 |
Correct |
2 ms |
6492 KB |
Output is correct |
33 |
Correct |
2 ms |
6492 KB |
Output is correct |
34 |
Correct |
2 ms |
6492 KB |
Output is correct |
35 |
Correct |
2 ms |
6692 KB |
Output is correct |
36 |
Correct |
2 ms |
6632 KB |
Output is correct |
37 |
Correct |
2 ms |
6656 KB |
Output is correct |
38 |
Correct |
2 ms |
6628 KB |
Output is correct |
39 |
Correct |
2 ms |
6632 KB |
Output is correct |
40 |
Correct |
2 ms |
6748 KB |
Output is correct |
41 |
Correct |
2 ms |
6748 KB |
Output is correct |
42 |
Correct |
2 ms |
6492 KB |
Output is correct |
43 |
Correct |
2 ms |
6632 KB |
Output is correct |
44 |
Correct |
2 ms |
6748 KB |
Output is correct |
45 |
Correct |
2 ms |
6748 KB |
Output is correct |
46 |
Correct |
2 ms |
6492 KB |
Output is correct |
47 |
Correct |
2 ms |
6580 KB |
Output is correct |
48 |
Correct |
2 ms |
6748 KB |
Output is correct |
49 |
Correct |
2 ms |
6748 KB |
Output is correct |
50 |
Correct |
2 ms |
6744 KB |
Output is correct |
51 |
Correct |
2 ms |
6744 KB |
Output is correct |
52 |
Correct |
2 ms |
6488 KB |
Output is correct |
53 |
Correct |
2 ms |
6632 KB |
Output is correct |
54 |
Correct |
2 ms |
6492 KB |
Output is correct |
55 |
Correct |
2 ms |
6492 KB |
Output is correct |
56 |
Correct |
2 ms |
6492 KB |
Output is correct |
57 |
Correct |
2 ms |
6748 KB |
Output is correct |
58 |
Correct |
2 ms |
6488 KB |
Output is correct |
59 |
Correct |
2 ms |
6492 KB |
Output is correct |
60 |
Correct |
2 ms |
6744 KB |
Output is correct |
61 |
Correct |
1 ms |
6492 KB |
Output is correct |
62 |
Correct |
2 ms |
6748 KB |
Output is correct |
63 |
Correct |
2 ms |
6492 KB |
Output is correct |
64 |
Correct |
78 ms |
15468 KB |
Output is correct |
65 |
Correct |
67 ms |
15440 KB |
Output is correct |
66 |
Correct |
58 ms |
15584 KB |
Output is correct |
67 |
Correct |
64 ms |
15416 KB |
Output is correct |
68 |
Correct |
57 ms |
15444 KB |
Output is correct |
69 |
Correct |
73 ms |
15440 KB |
Output is correct |
70 |
Correct |
61 ms |
15444 KB |
Output is correct |
71 |
Correct |
55 ms |
15448 KB |
Output is correct |
72 |
Correct |
65 ms |
15352 KB |
Output is correct |
73 |
Correct |
79 ms |
27980 KB |
Output is correct |
74 |
Correct |
73 ms |
28024 KB |
Output is correct |
75 |
Correct |
63 ms |
15444 KB |
Output is correct |
76 |
Correct |
54 ms |
15440 KB |
Output is correct |
77 |
Correct |
58 ms |
15232 KB |
Output is correct |
78 |
Correct |
57 ms |
15424 KB |
Output is correct |
79 |
Correct |
77 ms |
15472 KB |
Output is correct |
80 |
Correct |
59 ms |
15440 KB |
Output is correct |
81 |
Correct |
51 ms |
15816 KB |
Output is correct |
82 |
Correct |
58 ms |
15568 KB |
Output is correct |
83 |
Correct |
75 ms |
20564 KB |
Output is correct |
84 |
Correct |
75 ms |
22596 KB |
Output is correct |
85 |
Correct |
70 ms |
22504 KB |
Output is correct |
86 |
Correct |
61 ms |
16720 KB |
Output is correct |
87 |
Correct |
59 ms |
16140 KB |
Output is correct |
88 |
Correct |
74 ms |
16976 KB |
Output is correct |
89 |
Correct |
61 ms |
16976 KB |
Output is correct |
90 |
Correct |
58 ms |
16468 KB |
Output is correct |
91 |
Correct |
64 ms |
16828 KB |
Output is correct |
92 |
Correct |
89 ms |
17004 KB |
Output is correct |
93 |
Correct |
73 ms |
19548 KB |
Output is correct |
94 |
Correct |
59 ms |
21192 KB |
Output is correct |
95 |
Correct |
67 ms |
19920 KB |
Output is correct |
96 |
Correct |
58 ms |
18256 KB |
Output is correct |
97 |
Correct |
59 ms |
16468 KB |
Output is correct |
98 |
Correct |
57 ms |
16124 KB |
Output is correct |
99 |
Correct |
73 ms |
15696 KB |
Output is correct |
100 |
Correct |
63 ms |
19024 KB |
Output is correct |
101 |
Correct |
60 ms |
17096 KB |
Output is correct |
102 |
Correct |
53 ms |
16212 KB |
Output is correct |
103 |
Correct |
86 ms |
15948 KB |
Output is correct |
104 |
Correct |
42 ms |
15516 KB |
Output is correct |
105 |
Correct |
74 ms |
24920 KB |
Output is correct |
106 |
Correct |
39 ms |
16068 KB |
Output is correct |
107 |
Correct |
39 ms |
16068 KB |
Output is correct |
108 |
Correct |
76 ms |
28960 KB |
Output is correct |
109 |
Correct |
54 ms |
15556 KB |
Output is correct |
110 |
Correct |
78 ms |
29268 KB |
Output is correct |
111 |
Correct |
51 ms |
15444 KB |
Output is correct |