#include <iostream>
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll maxn = 2*1e5+5, INF = 4e18+9;
void solve(){
int n;
cin >> n;
vector<vector<int>> adj(n+1);
for(int i = 1; i < n; i++){
int u, v;
cin >> u >> v;
adj[u].push_back(v);
adj[v].push_back(u);
}
string s;
cin >> s;
s = ' ' + s;
vector<int> f(n+1, 0);
int ans = 1;
auto dfs = [&](auto dfs, int u, int p) -> void{
int mx = 0;
for(int v : adj[u]){
if(v == p) continue;
dfs(dfs, v, u);
f[u] += f[v];
mx = max(mx, f[v]);
}
ans = max(ans, mx + (s[u] == '1'));
f[u] -= (s[u] == '1');
f[u] = max(f[u], (int)(s[u] == '1'));
ans = max(ans, f[u]);
};
dfs(dfs, 1, 0);
cout << ans;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
504 KB |
Output is correct |
6 |
Correct |
1 ms |
336 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
504 KB |
Output is correct |
14 |
Correct |
1 ms |
336 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
1 ms |
604 KB |
Output is correct |
19 |
Correct |
1 ms |
336 KB |
Output is correct |
20 |
Correct |
1 ms |
336 KB |
Output is correct |
21 |
Correct |
1 ms |
336 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
504 KB |
Output is correct |
6 |
Correct |
1 ms |
336 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
504 KB |
Output is correct |
14 |
Correct |
1 ms |
336 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
1 ms |
604 KB |
Output is correct |
19 |
Correct |
1 ms |
336 KB |
Output is correct |
20 |
Correct |
1 ms |
336 KB |
Output is correct |
21 |
Correct |
1 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
592 KB |
Output is correct |
23 |
Correct |
1 ms |
592 KB |
Output is correct |
24 |
Correct |
1 ms |
592 KB |
Output is correct |
25 |
Correct |
1 ms |
592 KB |
Output is correct |
26 |
Correct |
1 ms |
592 KB |
Output is correct |
27 |
Correct |
1 ms |
592 KB |
Output is correct |
28 |
Correct |
1 ms |
592 KB |
Output is correct |
29 |
Correct |
1 ms |
584 KB |
Output is correct |
30 |
Correct |
1 ms |
592 KB |
Output is correct |
31 |
Correct |
1 ms |
592 KB |
Output is correct |
32 |
Correct |
1 ms |
592 KB |
Output is correct |
33 |
Correct |
1 ms |
592 KB |
Output is correct |
34 |
Correct |
2 ms |
592 KB |
Output is correct |
35 |
Correct |
1 ms |
592 KB |
Output is correct |
36 |
Correct |
1 ms |
592 KB |
Output is correct |
37 |
Correct |
1 ms |
592 KB |
Output is correct |
38 |
Correct |
1 ms |
592 KB |
Output is correct |
39 |
Correct |
2 ms |
608 KB |
Output is correct |
40 |
Correct |
2 ms |
592 KB |
Output is correct |
41 |
Correct |
1 ms |
592 KB |
Output is correct |
42 |
Correct |
1 ms |
592 KB |
Output is correct |
43 |
Correct |
1 ms |
592 KB |
Output is correct |
44 |
Correct |
1 ms |
592 KB |
Output is correct |
45 |
Correct |
1 ms |
592 KB |
Output is correct |
46 |
Correct |
1 ms |
592 KB |
Output is correct |
47 |
Correct |
1 ms |
592 KB |
Output is correct |
48 |
Correct |
2 ms |
592 KB |
Output is correct |
49 |
Correct |
1 ms |
592 KB |
Output is correct |
50 |
Correct |
1 ms |
476 KB |
Output is correct |
51 |
Correct |
1 ms |
592 KB |
Output is correct |
52 |
Correct |
1 ms |
472 KB |
Output is correct |
53 |
Correct |
1 ms |
592 KB |
Output is correct |
54 |
Correct |
1 ms |
600 KB |
Output is correct |
55 |
Correct |
1 ms |
760 KB |
Output is correct |
56 |
Correct |
1 ms |
592 KB |
Output is correct |
57 |
Correct |
2 ms |
468 KB |
Output is correct |
58 |
Correct |
1 ms |
592 KB |
Output is correct |
59 |
Correct |
2 ms |
592 KB |
Output is correct |
60 |
Correct |
1 ms |
592 KB |
Output is correct |
61 |
Correct |
1 ms |
592 KB |
Output is correct |
62 |
Correct |
1 ms |
592 KB |
Output is correct |
63 |
Correct |
2 ms |
592 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
504 KB |
Output is correct |
6 |
Correct |
1 ms |
336 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
504 KB |
Output is correct |
14 |
Correct |
1 ms |
336 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
1 ms |
604 KB |
Output is correct |
19 |
Correct |
1 ms |
336 KB |
Output is correct |
20 |
Correct |
1 ms |
336 KB |
Output is correct |
21 |
Correct |
1 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
592 KB |
Output is correct |
23 |
Correct |
1 ms |
592 KB |
Output is correct |
24 |
Correct |
1 ms |
592 KB |
Output is correct |
25 |
Correct |
1 ms |
592 KB |
Output is correct |
26 |
Correct |
1 ms |
592 KB |
Output is correct |
27 |
Correct |
1 ms |
592 KB |
Output is correct |
28 |
Correct |
1 ms |
592 KB |
Output is correct |
29 |
Correct |
1 ms |
584 KB |
Output is correct |
30 |
Correct |
1 ms |
592 KB |
Output is correct |
31 |
Correct |
1 ms |
592 KB |
Output is correct |
32 |
Correct |
1 ms |
592 KB |
Output is correct |
33 |
Correct |
1 ms |
592 KB |
Output is correct |
34 |
Correct |
2 ms |
592 KB |
Output is correct |
35 |
Correct |
1 ms |
592 KB |
Output is correct |
36 |
Correct |
1 ms |
592 KB |
Output is correct |
37 |
Correct |
1 ms |
592 KB |
Output is correct |
38 |
Correct |
1 ms |
592 KB |
Output is correct |
39 |
Correct |
2 ms |
608 KB |
Output is correct |
40 |
Correct |
2 ms |
592 KB |
Output is correct |
41 |
Correct |
1 ms |
592 KB |
Output is correct |
42 |
Correct |
1 ms |
592 KB |
Output is correct |
43 |
Correct |
1 ms |
592 KB |
Output is correct |
44 |
Correct |
1 ms |
592 KB |
Output is correct |
45 |
Correct |
1 ms |
592 KB |
Output is correct |
46 |
Correct |
1 ms |
592 KB |
Output is correct |
47 |
Correct |
1 ms |
592 KB |
Output is correct |
48 |
Correct |
2 ms |
592 KB |
Output is correct |
49 |
Correct |
1 ms |
592 KB |
Output is correct |
50 |
Correct |
1 ms |
476 KB |
Output is correct |
51 |
Correct |
1 ms |
592 KB |
Output is correct |
52 |
Correct |
1 ms |
472 KB |
Output is correct |
53 |
Correct |
1 ms |
592 KB |
Output is correct |
54 |
Correct |
1 ms |
600 KB |
Output is correct |
55 |
Correct |
1 ms |
760 KB |
Output is correct |
56 |
Correct |
1 ms |
592 KB |
Output is correct |
57 |
Correct |
2 ms |
468 KB |
Output is correct |
58 |
Correct |
1 ms |
592 KB |
Output is correct |
59 |
Correct |
2 ms |
592 KB |
Output is correct |
60 |
Correct |
1 ms |
592 KB |
Output is correct |
61 |
Correct |
1 ms |
592 KB |
Output is correct |
62 |
Correct |
1 ms |
592 KB |
Output is correct |
63 |
Correct |
2 ms |
592 KB |
Output is correct |
64 |
Correct |
57 ms |
15304 KB |
Output is correct |
65 |
Correct |
68 ms |
15236 KB |
Output is correct |
66 |
Correct |
59 ms |
15328 KB |
Output is correct |
67 |
Correct |
65 ms |
15180 KB |
Output is correct |
68 |
Correct |
64 ms |
15280 KB |
Output is correct |
69 |
Correct |
86 ms |
15248 KB |
Output is correct |
70 |
Correct |
91 ms |
15088 KB |
Output is correct |
71 |
Correct |
89 ms |
15312 KB |
Output is correct |
72 |
Correct |
71 ms |
15164 KB |
Output is correct |
73 |
Correct |
145 ms |
25892 KB |
Output is correct |
74 |
Correct |
80 ms |
25540 KB |
Output is correct |
75 |
Correct |
61 ms |
15044 KB |
Output is correct |
76 |
Correct |
82 ms |
15160 KB |
Output is correct |
77 |
Correct |
91 ms |
14996 KB |
Output is correct |
78 |
Correct |
142 ms |
15044 KB |
Output is correct |
79 |
Correct |
68 ms |
15184 KB |
Output is correct |
80 |
Correct |
68 ms |
15040 KB |
Output is correct |
81 |
Correct |
81 ms |
15560 KB |
Output is correct |
82 |
Correct |
67 ms |
15240 KB |
Output is correct |
83 |
Correct |
60 ms |
19400 KB |
Output is correct |
84 |
Correct |
67 ms |
21184 KB |
Output is correct |
85 |
Correct |
76 ms |
21200 KB |
Output is correct |
86 |
Correct |
72 ms |
16236 KB |
Output is correct |
87 |
Correct |
59 ms |
15812 KB |
Output is correct |
88 |
Correct |
62 ms |
16384 KB |
Output is correct |
89 |
Correct |
87 ms |
16336 KB |
Output is correct |
90 |
Correct |
82 ms |
16164 KB |
Output is correct |
91 |
Correct |
66 ms |
16304 KB |
Output is correct |
92 |
Correct |
82 ms |
16560 KB |
Output is correct |
93 |
Correct |
103 ms |
18580 KB |
Output is correct |
94 |
Correct |
61 ms |
19960 KB |
Output is correct |
95 |
Correct |
64 ms |
18944 KB |
Output is correct |
96 |
Correct |
65 ms |
17460 KB |
Output is correct |
97 |
Correct |
75 ms |
16156 KB |
Output is correct |
98 |
Correct |
73 ms |
15872 KB |
Output is correct |
99 |
Correct |
72 ms |
15552 KB |
Output is correct |
100 |
Correct |
90 ms |
18352 KB |
Output is correct |
101 |
Correct |
90 ms |
16396 KB |
Output is correct |
102 |
Correct |
83 ms |
15800 KB |
Output is correct |
103 |
Correct |
81 ms |
16100 KB |
Output is correct |
104 |
Correct |
46 ms |
16072 KB |
Output is correct |
105 |
Correct |
78 ms |
22888 KB |
Output is correct |
106 |
Correct |
43 ms |
16080 KB |
Output is correct |
107 |
Correct |
47 ms |
16068 KB |
Output is correct |
108 |
Correct |
83 ms |
26240 KB |
Output is correct |
109 |
Correct |
51 ms |
16064 KB |
Output is correct |
110 |
Correct |
114 ms |
26800 KB |
Output is correct |
111 |
Correct |
92 ms |
15060 KB |
Output is correct |