#include <bits/stdc++.h>
using namespace std;
int n;
vector<int>g[200005];
string s;
int a[200005];
int dp[200005];
int ans=0;
void dfs(int u,int pa) {
dp[u]=a[u];
int sum1=0,sum2=0;
for(auto v:g[u])
if(v!=pa) {
dfs(v,u);
sum1=max(sum1,dp[v]);
sum2+=dp[v];
}
ans=max(ans,sum1+a[u]);
dp[u]=max(dp[u],sum2-a[u]);
ans=max(ans,dp[u]);
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin>>n;
for(int i=1; i<n; i++) {
int u,v;
cin>>u>>v;
g[u].push_back(v);
g[v].push_back(u);
}
cin>>s;
for(int i=0; i<n; i++)if(s[i]=='1')a[i+1]=1;
dfs(1,0);
cout<<ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4948 KB |
Output is correct |
2 |
Correct |
3 ms |
4948 KB |
Output is correct |
3 |
Correct |
3 ms |
4948 KB |
Output is correct |
4 |
Correct |
2 ms |
4948 KB |
Output is correct |
5 |
Correct |
2 ms |
4948 KB |
Output is correct |
6 |
Correct |
2 ms |
4948 KB |
Output is correct |
7 |
Correct |
2 ms |
4948 KB |
Output is correct |
8 |
Correct |
2 ms |
4948 KB |
Output is correct |
9 |
Correct |
3 ms |
4948 KB |
Output is correct |
10 |
Correct |
2 ms |
4948 KB |
Output is correct |
11 |
Correct |
2 ms |
4948 KB |
Output is correct |
12 |
Correct |
2 ms |
4948 KB |
Output is correct |
13 |
Correct |
3 ms |
4948 KB |
Output is correct |
14 |
Correct |
2 ms |
4948 KB |
Output is correct |
15 |
Correct |
3 ms |
4948 KB |
Output is correct |
16 |
Correct |
2 ms |
4948 KB |
Output is correct |
17 |
Correct |
2 ms |
4948 KB |
Output is correct |
18 |
Correct |
2 ms |
4948 KB |
Output is correct |
19 |
Correct |
3 ms |
4948 KB |
Output is correct |
20 |
Correct |
3 ms |
4948 KB |
Output is correct |
21 |
Correct |
2 ms |
4948 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4948 KB |
Output is correct |
2 |
Correct |
3 ms |
4948 KB |
Output is correct |
3 |
Correct |
3 ms |
4948 KB |
Output is correct |
4 |
Correct |
2 ms |
4948 KB |
Output is correct |
5 |
Correct |
2 ms |
4948 KB |
Output is correct |
6 |
Correct |
2 ms |
4948 KB |
Output is correct |
7 |
Correct |
2 ms |
4948 KB |
Output is correct |
8 |
Correct |
2 ms |
4948 KB |
Output is correct |
9 |
Correct |
3 ms |
4948 KB |
Output is correct |
10 |
Correct |
2 ms |
4948 KB |
Output is correct |
11 |
Correct |
2 ms |
4948 KB |
Output is correct |
12 |
Correct |
2 ms |
4948 KB |
Output is correct |
13 |
Correct |
3 ms |
4948 KB |
Output is correct |
14 |
Correct |
2 ms |
4948 KB |
Output is correct |
15 |
Correct |
3 ms |
4948 KB |
Output is correct |
16 |
Correct |
2 ms |
4948 KB |
Output is correct |
17 |
Correct |
2 ms |
4948 KB |
Output is correct |
18 |
Correct |
2 ms |
4948 KB |
Output is correct |
19 |
Correct |
3 ms |
4948 KB |
Output is correct |
20 |
Correct |
3 ms |
4948 KB |
Output is correct |
21 |
Correct |
2 ms |
4948 KB |
Output is correct |
22 |
Correct |
3 ms |
5076 KB |
Output is correct |
23 |
Correct |
3 ms |
5076 KB |
Output is correct |
24 |
Correct |
3 ms |
5076 KB |
Output is correct |
25 |
Correct |
3 ms |
5076 KB |
Output is correct |
26 |
Correct |
3 ms |
5076 KB |
Output is correct |
27 |
Correct |
3 ms |
5076 KB |
Output is correct |
28 |
Correct |
3 ms |
5076 KB |
Output is correct |
29 |
Correct |
3 ms |
5204 KB |
Output is correct |
30 |
Correct |
3 ms |
5076 KB |
Output is correct |
31 |
Correct |
3 ms |
5076 KB |
Output is correct |
32 |
Correct |
3 ms |
5076 KB |
Output is correct |
33 |
Correct |
3 ms |
5076 KB |
Output is correct |
34 |
Correct |
3 ms |
5076 KB |
Output is correct |
35 |
Correct |
3 ms |
5076 KB |
Output is correct |
36 |
Correct |
3 ms |
5076 KB |
Output is correct |
37 |
Correct |
3 ms |
5076 KB |
Output is correct |
38 |
Correct |
4 ms |
5076 KB |
Output is correct |
39 |
Correct |
3 ms |
5116 KB |
Output is correct |
40 |
Correct |
3 ms |
5076 KB |
Output is correct |
41 |
Correct |
2 ms |
5076 KB |
Output is correct |
42 |
Correct |
3 ms |
5076 KB |
Output is correct |
43 |
Correct |
3 ms |
5076 KB |
Output is correct |
44 |
Correct |
3 ms |
5076 KB |
Output is correct |
45 |
Correct |
3 ms |
5076 KB |
Output is correct |
46 |
Correct |
3 ms |
5076 KB |
Output is correct |
47 |
Correct |
3 ms |
5032 KB |
Output is correct |
48 |
Correct |
3 ms |
5076 KB |
Output is correct |
49 |
Correct |
3 ms |
5076 KB |
Output is correct |
50 |
Correct |
3 ms |
5076 KB |
Output is correct |
51 |
Correct |
3 ms |
5076 KB |
Output is correct |
52 |
Correct |
2 ms |
5076 KB |
Output is correct |
53 |
Correct |
3 ms |
5076 KB |
Output is correct |
54 |
Correct |
3 ms |
5100 KB |
Output is correct |
55 |
Correct |
3 ms |
5076 KB |
Output is correct |
56 |
Correct |
3 ms |
5076 KB |
Output is correct |
57 |
Correct |
3 ms |
5204 KB |
Output is correct |
58 |
Correct |
2 ms |
5076 KB |
Output is correct |
59 |
Correct |
3 ms |
5076 KB |
Output is correct |
60 |
Correct |
3 ms |
5076 KB |
Output is correct |
61 |
Correct |
3 ms |
5076 KB |
Output is correct |
62 |
Correct |
3 ms |
5204 KB |
Output is correct |
63 |
Correct |
3 ms |
5076 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4948 KB |
Output is correct |
2 |
Correct |
3 ms |
4948 KB |
Output is correct |
3 |
Correct |
3 ms |
4948 KB |
Output is correct |
4 |
Correct |
2 ms |
4948 KB |
Output is correct |
5 |
Correct |
2 ms |
4948 KB |
Output is correct |
6 |
Correct |
2 ms |
4948 KB |
Output is correct |
7 |
Correct |
2 ms |
4948 KB |
Output is correct |
8 |
Correct |
2 ms |
4948 KB |
Output is correct |
9 |
Correct |
3 ms |
4948 KB |
Output is correct |
10 |
Correct |
2 ms |
4948 KB |
Output is correct |
11 |
Correct |
2 ms |
4948 KB |
Output is correct |
12 |
Correct |
2 ms |
4948 KB |
Output is correct |
13 |
Correct |
3 ms |
4948 KB |
Output is correct |
14 |
Correct |
2 ms |
4948 KB |
Output is correct |
15 |
Correct |
3 ms |
4948 KB |
Output is correct |
16 |
Correct |
2 ms |
4948 KB |
Output is correct |
17 |
Correct |
2 ms |
4948 KB |
Output is correct |
18 |
Correct |
2 ms |
4948 KB |
Output is correct |
19 |
Correct |
3 ms |
4948 KB |
Output is correct |
20 |
Correct |
3 ms |
4948 KB |
Output is correct |
21 |
Correct |
2 ms |
4948 KB |
Output is correct |
22 |
Correct |
3 ms |
5076 KB |
Output is correct |
23 |
Correct |
3 ms |
5076 KB |
Output is correct |
24 |
Correct |
3 ms |
5076 KB |
Output is correct |
25 |
Correct |
3 ms |
5076 KB |
Output is correct |
26 |
Correct |
3 ms |
5076 KB |
Output is correct |
27 |
Correct |
3 ms |
5076 KB |
Output is correct |
28 |
Correct |
3 ms |
5076 KB |
Output is correct |
29 |
Correct |
3 ms |
5204 KB |
Output is correct |
30 |
Correct |
3 ms |
5076 KB |
Output is correct |
31 |
Correct |
3 ms |
5076 KB |
Output is correct |
32 |
Correct |
3 ms |
5076 KB |
Output is correct |
33 |
Correct |
3 ms |
5076 KB |
Output is correct |
34 |
Correct |
3 ms |
5076 KB |
Output is correct |
35 |
Correct |
3 ms |
5076 KB |
Output is correct |
36 |
Correct |
3 ms |
5076 KB |
Output is correct |
37 |
Correct |
3 ms |
5076 KB |
Output is correct |
38 |
Correct |
4 ms |
5076 KB |
Output is correct |
39 |
Correct |
3 ms |
5116 KB |
Output is correct |
40 |
Correct |
3 ms |
5076 KB |
Output is correct |
41 |
Correct |
2 ms |
5076 KB |
Output is correct |
42 |
Correct |
3 ms |
5076 KB |
Output is correct |
43 |
Correct |
3 ms |
5076 KB |
Output is correct |
44 |
Correct |
3 ms |
5076 KB |
Output is correct |
45 |
Correct |
3 ms |
5076 KB |
Output is correct |
46 |
Correct |
3 ms |
5076 KB |
Output is correct |
47 |
Correct |
3 ms |
5032 KB |
Output is correct |
48 |
Correct |
3 ms |
5076 KB |
Output is correct |
49 |
Correct |
3 ms |
5076 KB |
Output is correct |
50 |
Correct |
3 ms |
5076 KB |
Output is correct |
51 |
Correct |
3 ms |
5076 KB |
Output is correct |
52 |
Correct |
2 ms |
5076 KB |
Output is correct |
53 |
Correct |
3 ms |
5076 KB |
Output is correct |
54 |
Correct |
3 ms |
5100 KB |
Output is correct |
55 |
Correct |
3 ms |
5076 KB |
Output is correct |
56 |
Correct |
3 ms |
5076 KB |
Output is correct |
57 |
Correct |
3 ms |
5204 KB |
Output is correct |
58 |
Correct |
2 ms |
5076 KB |
Output is correct |
59 |
Correct |
3 ms |
5076 KB |
Output is correct |
60 |
Correct |
3 ms |
5076 KB |
Output is correct |
61 |
Correct |
3 ms |
5076 KB |
Output is correct |
62 |
Correct |
3 ms |
5204 KB |
Output is correct |
63 |
Correct |
3 ms |
5076 KB |
Output is correct |
64 |
Correct |
70 ms |
13220 KB |
Output is correct |
65 |
Correct |
85 ms |
13188 KB |
Output is correct |
66 |
Correct |
68 ms |
13268 KB |
Output is correct |
67 |
Correct |
65 ms |
13152 KB |
Output is correct |
68 |
Correct |
71 ms |
13192 KB |
Output is correct |
69 |
Correct |
109 ms |
13264 KB |
Output is correct |
70 |
Correct |
66 ms |
13220 KB |
Output is correct |
71 |
Correct |
68 ms |
13244 KB |
Output is correct |
72 |
Correct |
61 ms |
12492 KB |
Output is correct |
73 |
Correct |
113 ms |
25856 KB |
Output is correct |
74 |
Correct |
90 ms |
25700 KB |
Output is correct |
75 |
Correct |
82 ms |
13128 KB |
Output is correct |
76 |
Correct |
77 ms |
13076 KB |
Output is correct |
77 |
Correct |
76 ms |
13140 KB |
Output is correct |
78 |
Correct |
66 ms |
13052 KB |
Output is correct |
79 |
Correct |
68 ms |
13156 KB |
Output is correct |
80 |
Correct |
84 ms |
13140 KB |
Output is correct |
81 |
Correct |
62 ms |
13548 KB |
Output is correct |
82 |
Correct |
71 ms |
13296 KB |
Output is correct |
83 |
Correct |
99 ms |
18364 KB |
Output is correct |
84 |
Correct |
99 ms |
20420 KB |
Output is correct |
85 |
Correct |
91 ms |
20120 KB |
Output is correct |
86 |
Correct |
114 ms |
14612 KB |
Output is correct |
87 |
Correct |
90 ms |
14020 KB |
Output is correct |
88 |
Correct |
72 ms |
14440 KB |
Output is correct |
89 |
Correct |
126 ms |
14476 KB |
Output is correct |
90 |
Correct |
74 ms |
14240 KB |
Output is correct |
91 |
Correct |
88 ms |
14448 KB |
Output is correct |
92 |
Correct |
70 ms |
14840 KB |
Output is correct |
93 |
Correct |
99 ms |
17280 KB |
Output is correct |
94 |
Correct |
82 ms |
19072 KB |
Output is correct |
95 |
Correct |
89 ms |
17612 KB |
Output is correct |
96 |
Correct |
109 ms |
15820 KB |
Output is correct |
97 |
Correct |
92 ms |
14224 KB |
Output is correct |
98 |
Correct |
135 ms |
13784 KB |
Output is correct |
99 |
Correct |
84 ms |
13580 KB |
Output is correct |
100 |
Correct |
73 ms |
16784 KB |
Output is correct |
101 |
Correct |
106 ms |
14808 KB |
Output is correct |
102 |
Correct |
75 ms |
13980 KB |
Output is correct |
103 |
Correct |
107 ms |
13748 KB |
Output is correct |
104 |
Correct |
65 ms |
13180 KB |
Output is correct |
105 |
Correct |
123 ms |
21928 KB |
Output is correct |
106 |
Correct |
67 ms |
14052 KB |
Output is correct |
107 |
Correct |
56 ms |
14032 KB |
Output is correct |
108 |
Correct |
126 ms |
25824 KB |
Output is correct |
109 |
Correct |
65 ms |
13180 KB |
Output is correct |
110 |
Correct |
142 ms |
26156 KB |
Output is correct |
111 |
Correct |
75 ms |
13096 KB |
Output is correct |