#include <bits/stdc++.h>
using namespace std;
#define all(v) v.begin(), v.end()
typedef long long ll;
const int NMAX = 2e5 + 5;
int n, ans, a[NMAX], u, v;
vector<int> adj[NMAX];
string s;
int dfs(int x, int p){
int v1 = 0, v2 = 0;
for(int& nx : adj[x]){
if(nx == p) continue;
int t = dfs(nx, x);
v1 = max(v1, t);
v2 += max(t, 0);
}
ans = max(ans, v1 + a[x]);
ans = max(ans, v2 - a[x]);
return max(v2 - a[x], a[x]);
}
int main(void){
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n;
for(int i = 1; i < n; i++){
cin >> u >> v;
adj[u].emplace_back(v);
adj[v].emplace_back(u);
}
cin >>s;
for(int i = 1; i <= n; i++) a[i] = s[i - 1] - '0';
dfs(1, -1);
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5024 KB |
Output is correct |
2 |
Correct |
3 ms |
5024 KB |
Output is correct |
3 |
Correct |
3 ms |
5024 KB |
Output is correct |
4 |
Correct |
2 ms |
4948 KB |
Output is correct |
5 |
Correct |
2 ms |
4948 KB |
Output is correct |
6 |
Correct |
3 ms |
5020 KB |
Output is correct |
7 |
Correct |
2 ms |
5024 KB |
Output is correct |
8 |
Correct |
3 ms |
5020 KB |
Output is correct |
9 |
Correct |
2 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
4948 KB |
Output is correct |
11 |
Correct |
2 ms |
4948 KB |
Output is correct |
12 |
Correct |
3 ms |
4944 KB |
Output is correct |
13 |
Correct |
3 ms |
4948 KB |
Output is correct |
14 |
Correct |
4 ms |
5024 KB |
Output is correct |
15 |
Correct |
2 ms |
4948 KB |
Output is correct |
16 |
Correct |
2 ms |
5024 KB |
Output is correct |
17 |
Correct |
3 ms |
4948 KB |
Output is correct |
18 |
Correct |
3 ms |
5024 KB |
Output is correct |
19 |
Correct |
3 ms |
5028 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 |
3 ms |
5024 KB |
Output is correct |
2 |
Correct |
3 ms |
5024 KB |
Output is correct |
3 |
Correct |
3 ms |
5024 KB |
Output is correct |
4 |
Correct |
2 ms |
4948 KB |
Output is correct |
5 |
Correct |
2 ms |
4948 KB |
Output is correct |
6 |
Correct |
3 ms |
5020 KB |
Output is correct |
7 |
Correct |
2 ms |
5024 KB |
Output is correct |
8 |
Correct |
3 ms |
5020 KB |
Output is correct |
9 |
Correct |
2 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
4948 KB |
Output is correct |
11 |
Correct |
2 ms |
4948 KB |
Output is correct |
12 |
Correct |
3 ms |
4944 KB |
Output is correct |
13 |
Correct |
3 ms |
4948 KB |
Output is correct |
14 |
Correct |
4 ms |
5024 KB |
Output is correct |
15 |
Correct |
2 ms |
4948 KB |
Output is correct |
16 |
Correct |
2 ms |
5024 KB |
Output is correct |
17 |
Correct |
3 ms |
4948 KB |
Output is correct |
18 |
Correct |
3 ms |
5024 KB |
Output is correct |
19 |
Correct |
3 ms |
5028 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 |
4 ms |
5076 KB |
Output is correct |
24 |
Correct |
4 ms |
5076 KB |
Output is correct |
25 |
Correct |
3 ms |
5076 KB |
Output is correct |
26 |
Correct |
3 ms |
5032 KB |
Output is correct |
27 |
Correct |
4 ms |
5076 KB |
Output is correct |
28 |
Correct |
4 ms |
5036 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 |
2 ms |
5040 KB |
Output is correct |
33 |
Correct |
3 ms |
5076 KB |
Output is correct |
34 |
Correct |
4 ms |
4988 KB |
Output is correct |
35 |
Correct |
4 ms |
5040 KB |
Output is correct |
36 |
Correct |
4 ms |
5036 KB |
Output is correct |
37 |
Correct |
3 ms |
5040 KB |
Output is correct |
38 |
Correct |
3 ms |
5076 KB |
Output is correct |
39 |
Correct |
3 ms |
5076 KB |
Output is correct |
40 |
Correct |
3 ms |
5032 KB |
Output is correct |
41 |
Correct |
4 ms |
5076 KB |
Output is correct |
42 |
Correct |
3 ms |
5040 KB |
Output is correct |
43 |
Correct |
3 ms |
5076 KB |
Output is correct |
44 |
Correct |
4 ms |
5140 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 |
5160 KB |
Output is correct |
49 |
Correct |
3 ms |
5076 KB |
Output is correct |
50 |
Correct |
3 ms |
5076 KB |
Output is correct |
51 |
Correct |
2 ms |
5144 KB |
Output is correct |
52 |
Correct |
3 ms |
5036 KB |
Output is correct |
53 |
Correct |
4 ms |
5084 KB |
Output is correct |
54 |
Correct |
4 ms |
5076 KB |
Output is correct |
55 |
Correct |
3 ms |
5160 KB |
Output is correct |
56 |
Correct |
3 ms |
5076 KB |
Output is correct |
57 |
Correct |
3 ms |
5204 KB |
Output is correct |
58 |
Correct |
4 ms |
5076 KB |
Output is correct |
59 |
Correct |
3 ms |
5076 KB |
Output is correct |
60 |
Correct |
3 ms |
5088 KB |
Output is correct |
61 |
Correct |
3 ms |
5036 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 |
3 ms |
5024 KB |
Output is correct |
2 |
Correct |
3 ms |
5024 KB |
Output is correct |
3 |
Correct |
3 ms |
5024 KB |
Output is correct |
4 |
Correct |
2 ms |
4948 KB |
Output is correct |
5 |
Correct |
2 ms |
4948 KB |
Output is correct |
6 |
Correct |
3 ms |
5020 KB |
Output is correct |
7 |
Correct |
2 ms |
5024 KB |
Output is correct |
8 |
Correct |
3 ms |
5020 KB |
Output is correct |
9 |
Correct |
2 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
4948 KB |
Output is correct |
11 |
Correct |
2 ms |
4948 KB |
Output is correct |
12 |
Correct |
3 ms |
4944 KB |
Output is correct |
13 |
Correct |
3 ms |
4948 KB |
Output is correct |
14 |
Correct |
4 ms |
5024 KB |
Output is correct |
15 |
Correct |
2 ms |
4948 KB |
Output is correct |
16 |
Correct |
2 ms |
5024 KB |
Output is correct |
17 |
Correct |
3 ms |
4948 KB |
Output is correct |
18 |
Correct |
3 ms |
5024 KB |
Output is correct |
19 |
Correct |
3 ms |
5028 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 |
4 ms |
5076 KB |
Output is correct |
24 |
Correct |
4 ms |
5076 KB |
Output is correct |
25 |
Correct |
3 ms |
5076 KB |
Output is correct |
26 |
Correct |
3 ms |
5032 KB |
Output is correct |
27 |
Correct |
4 ms |
5076 KB |
Output is correct |
28 |
Correct |
4 ms |
5036 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 |
2 ms |
5040 KB |
Output is correct |
33 |
Correct |
3 ms |
5076 KB |
Output is correct |
34 |
Correct |
4 ms |
4988 KB |
Output is correct |
35 |
Correct |
4 ms |
5040 KB |
Output is correct |
36 |
Correct |
4 ms |
5036 KB |
Output is correct |
37 |
Correct |
3 ms |
5040 KB |
Output is correct |
38 |
Correct |
3 ms |
5076 KB |
Output is correct |
39 |
Correct |
3 ms |
5076 KB |
Output is correct |
40 |
Correct |
3 ms |
5032 KB |
Output is correct |
41 |
Correct |
4 ms |
5076 KB |
Output is correct |
42 |
Correct |
3 ms |
5040 KB |
Output is correct |
43 |
Correct |
3 ms |
5076 KB |
Output is correct |
44 |
Correct |
4 ms |
5140 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 |
5160 KB |
Output is correct |
49 |
Correct |
3 ms |
5076 KB |
Output is correct |
50 |
Correct |
3 ms |
5076 KB |
Output is correct |
51 |
Correct |
2 ms |
5144 KB |
Output is correct |
52 |
Correct |
3 ms |
5036 KB |
Output is correct |
53 |
Correct |
4 ms |
5084 KB |
Output is correct |
54 |
Correct |
4 ms |
5076 KB |
Output is correct |
55 |
Correct |
3 ms |
5160 KB |
Output is correct |
56 |
Correct |
3 ms |
5076 KB |
Output is correct |
57 |
Correct |
3 ms |
5204 KB |
Output is correct |
58 |
Correct |
4 ms |
5076 KB |
Output is correct |
59 |
Correct |
3 ms |
5076 KB |
Output is correct |
60 |
Correct |
3 ms |
5088 KB |
Output is correct |
61 |
Correct |
3 ms |
5036 KB |
Output is correct |
62 |
Correct |
3 ms |
5204 KB |
Output is correct |
63 |
Correct |
3 ms |
5076 KB |
Output is correct |
64 |
Correct |
67 ms |
15096 KB |
Output is correct |
65 |
Correct |
60 ms |
15148 KB |
Output is correct |
66 |
Correct |
81 ms |
15092 KB |
Output is correct |
67 |
Correct |
120 ms |
15204 KB |
Output is correct |
68 |
Correct |
69 ms |
15096 KB |
Output is correct |
69 |
Correct |
77 ms |
15088 KB |
Output is correct |
70 |
Correct |
84 ms |
15104 KB |
Output is correct |
71 |
Correct |
91 ms |
15192 KB |
Output is correct |
72 |
Correct |
85 ms |
15188 KB |
Output is correct |
73 |
Correct |
93 ms |
27704 KB |
Output is correct |
74 |
Correct |
100 ms |
27748 KB |
Output is correct |
75 |
Correct |
85 ms |
14988 KB |
Output is correct |
76 |
Correct |
95 ms |
15028 KB |
Output is correct |
77 |
Correct |
92 ms |
14992 KB |
Output is correct |
78 |
Correct |
100 ms |
15048 KB |
Output is correct |
79 |
Correct |
95 ms |
15032 KB |
Output is correct |
80 |
Correct |
126 ms |
15064 KB |
Output is correct |
81 |
Correct |
58 ms |
15464 KB |
Output is correct |
82 |
Correct |
96 ms |
15264 KB |
Output is correct |
83 |
Correct |
110 ms |
20248 KB |
Output is correct |
84 |
Correct |
99 ms |
22388 KB |
Output is correct |
85 |
Correct |
92 ms |
22060 KB |
Output is correct |
86 |
Correct |
66 ms |
16528 KB |
Output is correct |
87 |
Correct |
111 ms |
15868 KB |
Output is correct |
88 |
Correct |
105 ms |
16356 KB |
Output is correct |
89 |
Correct |
67 ms |
16448 KB |
Output is correct |
90 |
Correct |
73 ms |
16232 KB |
Output is correct |
91 |
Correct |
75 ms |
16376 KB |
Output is correct |
92 |
Correct |
67 ms |
16764 KB |
Output is correct |
93 |
Correct |
103 ms |
19052 KB |
Output is correct |
94 |
Correct |
67 ms |
20908 KB |
Output is correct |
95 |
Correct |
74 ms |
19528 KB |
Output is correct |
96 |
Correct |
73 ms |
17728 KB |
Output is correct |
97 |
Correct |
82 ms |
16164 KB |
Output is correct |
98 |
Correct |
71 ms |
15760 KB |
Output is correct |
99 |
Correct |
67 ms |
15456 KB |
Output is correct |
100 |
Correct |
82 ms |
18640 KB |
Output is correct |
101 |
Correct |
79 ms |
16648 KB |
Output is correct |
102 |
Correct |
66 ms |
15932 KB |
Output is correct |
103 |
Correct |
79 ms |
15696 KB |
Output is correct |
104 |
Correct |
53 ms |
15992 KB |
Output is correct |
105 |
Correct |
90 ms |
24616 KB |
Output is correct |
106 |
Correct |
44 ms |
15932 KB |
Output is correct |
107 |
Correct |
44 ms |
15892 KB |
Output is correct |
108 |
Correct |
89 ms |
28532 KB |
Output is correct |
109 |
Correct |
65 ms |
16028 KB |
Output is correct |
110 |
Correct |
109 ms |
28888 KB |
Output is correct |
111 |
Correct |
63 ms |
15076 KB |
Output is correct |