#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxn = 2e5 + 2;
int n;
int ans = 0;
vector <int> ad [maxn];
string type;
int dp (int u, int p) {
int rs0 = 0, rs1 = 0;
for (int v: ad[u]) {
if (v == p) continue;
int k = dp(v, u);
rs0+=k;
rs1=max(rs1, k);
}
if (type[u] == '1') {
ans = max({ans, rs1 + 1, rs0 - 1, 1});
return max(rs0 - 1, 1);
}
ans = max(ans, rs0);
return rs0;
}
int main() {
cin >> n;
for (int i = 0; i < n - 1; i++){
int x,y;
cin >> x >> y;
x--;
y--;
ad[x].push_back(y);
ad[y].push_back(x);
}
cin >> type;
dp(0, -1);
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 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 |
3 ms |
4948 KB |
Output is correct |
5 |
Correct |
3 ms |
4948 KB |
Output is correct |
6 |
Correct |
3 ms |
4996 KB |
Output is correct |
7 |
Correct |
3 ms |
4948 KB |
Output is correct |
8 |
Correct |
4 ms |
4948 KB |
Output is correct |
9 |
Correct |
3 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
5000 KB |
Output is correct |
11 |
Correct |
3 ms |
4948 KB |
Output is correct |
12 |
Correct |
3 ms |
5004 KB |
Output is correct |
13 |
Correct |
3 ms |
4904 KB |
Output is correct |
14 |
Correct |
3 ms |
4948 KB |
Output is correct |
15 |
Correct |
3 ms |
4996 KB |
Output is correct |
16 |
Correct |
3 ms |
4948 KB |
Output is correct |
17 |
Correct |
3 ms |
4996 KB |
Output is correct |
18 |
Correct |
3 ms |
4948 KB |
Output is correct |
19 |
Correct |
3 ms |
4948 KB |
Output is correct |
20 |
Correct |
3 ms |
4996 KB |
Output is correct |
21 |
Correct |
3 ms |
4988 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 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 |
3 ms |
4948 KB |
Output is correct |
5 |
Correct |
3 ms |
4948 KB |
Output is correct |
6 |
Correct |
3 ms |
4996 KB |
Output is correct |
7 |
Correct |
3 ms |
4948 KB |
Output is correct |
8 |
Correct |
4 ms |
4948 KB |
Output is correct |
9 |
Correct |
3 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
5000 KB |
Output is correct |
11 |
Correct |
3 ms |
4948 KB |
Output is correct |
12 |
Correct |
3 ms |
5004 KB |
Output is correct |
13 |
Correct |
3 ms |
4904 KB |
Output is correct |
14 |
Correct |
3 ms |
4948 KB |
Output is correct |
15 |
Correct |
3 ms |
4996 KB |
Output is correct |
16 |
Correct |
3 ms |
4948 KB |
Output is correct |
17 |
Correct |
3 ms |
4996 KB |
Output is correct |
18 |
Correct |
3 ms |
4948 KB |
Output is correct |
19 |
Correct |
3 ms |
4948 KB |
Output is correct |
20 |
Correct |
3 ms |
4996 KB |
Output is correct |
21 |
Correct |
3 ms |
4988 KB |
Output is correct |
22 |
Correct |
4 ms |
5076 KB |
Output is correct |
23 |
Correct |
6 ms |
5012 KB |
Output is correct |
24 |
Correct |
4 ms |
5072 KB |
Output is correct |
25 |
Correct |
4 ms |
5076 KB |
Output is correct |
26 |
Correct |
5 ms |
5012 KB |
Output is correct |
27 |
Correct |
4 ms |
5076 KB |
Output is correct |
28 |
Correct |
4 ms |
5076 KB |
Output is correct |
29 |
Correct |
4 ms |
5204 KB |
Output is correct |
30 |
Correct |
4 ms |
5076 KB |
Output is correct |
31 |
Correct |
4 ms |
5076 KB |
Output is correct |
32 |
Correct |
5 ms |
5076 KB |
Output is correct |
33 |
Correct |
4 ms |
5076 KB |
Output is correct |
34 |
Correct |
4 ms |
5076 KB |
Output is correct |
35 |
Correct |
4 ms |
5076 KB |
Output is correct |
36 |
Correct |
4 ms |
5012 KB |
Output is correct |
37 |
Correct |
5 ms |
5016 KB |
Output is correct |
38 |
Correct |
5 ms |
5076 KB |
Output is correct |
39 |
Correct |
4 ms |
5076 KB |
Output is correct |
40 |
Correct |
4 ms |
5020 KB |
Output is correct |
41 |
Correct |
4 ms |
5076 KB |
Output is correct |
42 |
Correct |
4 ms |
5076 KB |
Output is correct |
43 |
Correct |
3 ms |
5076 KB |
Output is correct |
44 |
Correct |
5 ms |
5012 KB |
Output is correct |
45 |
Correct |
4 ms |
5076 KB |
Output is correct |
46 |
Correct |
4 ms |
5076 KB |
Output is correct |
47 |
Correct |
4 ms |
5076 KB |
Output is correct |
48 |
Correct |
4 ms |
5076 KB |
Output is correct |
49 |
Correct |
4 ms |
5076 KB |
Output is correct |
50 |
Correct |
5 ms |
5076 KB |
Output is correct |
51 |
Correct |
5 ms |
5076 KB |
Output is correct |
52 |
Correct |
5 ms |
5076 KB |
Output is correct |
53 |
Correct |
4 ms |
5076 KB |
Output is correct |
54 |
Correct |
5 ms |
5020 KB |
Output is correct |
55 |
Correct |
4 ms |
5016 KB |
Output is correct |
56 |
Correct |
4 ms |
5076 KB |
Output is correct |
57 |
Correct |
4 ms |
5204 KB |
Output is correct |
58 |
Correct |
4 ms |
5020 KB |
Output is correct |
59 |
Correct |
4 ms |
5076 KB |
Output is correct |
60 |
Correct |
4 ms |
5076 KB |
Output is correct |
61 |
Correct |
4 ms |
5076 KB |
Output is correct |
62 |
Correct |
4 ms |
5076 KB |
Output is correct |
63 |
Correct |
4 ms |
5012 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 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 |
3 ms |
4948 KB |
Output is correct |
5 |
Correct |
3 ms |
4948 KB |
Output is correct |
6 |
Correct |
3 ms |
4996 KB |
Output is correct |
7 |
Correct |
3 ms |
4948 KB |
Output is correct |
8 |
Correct |
4 ms |
4948 KB |
Output is correct |
9 |
Correct |
3 ms |
4948 KB |
Output is correct |
10 |
Correct |
3 ms |
5000 KB |
Output is correct |
11 |
Correct |
3 ms |
4948 KB |
Output is correct |
12 |
Correct |
3 ms |
5004 KB |
Output is correct |
13 |
Correct |
3 ms |
4904 KB |
Output is correct |
14 |
Correct |
3 ms |
4948 KB |
Output is correct |
15 |
Correct |
3 ms |
4996 KB |
Output is correct |
16 |
Correct |
3 ms |
4948 KB |
Output is correct |
17 |
Correct |
3 ms |
4996 KB |
Output is correct |
18 |
Correct |
3 ms |
4948 KB |
Output is correct |
19 |
Correct |
3 ms |
4948 KB |
Output is correct |
20 |
Correct |
3 ms |
4996 KB |
Output is correct |
21 |
Correct |
3 ms |
4988 KB |
Output is correct |
22 |
Correct |
4 ms |
5076 KB |
Output is correct |
23 |
Correct |
6 ms |
5012 KB |
Output is correct |
24 |
Correct |
4 ms |
5072 KB |
Output is correct |
25 |
Correct |
4 ms |
5076 KB |
Output is correct |
26 |
Correct |
5 ms |
5012 KB |
Output is correct |
27 |
Correct |
4 ms |
5076 KB |
Output is correct |
28 |
Correct |
4 ms |
5076 KB |
Output is correct |
29 |
Correct |
4 ms |
5204 KB |
Output is correct |
30 |
Correct |
4 ms |
5076 KB |
Output is correct |
31 |
Correct |
4 ms |
5076 KB |
Output is correct |
32 |
Correct |
5 ms |
5076 KB |
Output is correct |
33 |
Correct |
4 ms |
5076 KB |
Output is correct |
34 |
Correct |
4 ms |
5076 KB |
Output is correct |
35 |
Correct |
4 ms |
5076 KB |
Output is correct |
36 |
Correct |
4 ms |
5012 KB |
Output is correct |
37 |
Correct |
5 ms |
5016 KB |
Output is correct |
38 |
Correct |
5 ms |
5076 KB |
Output is correct |
39 |
Correct |
4 ms |
5076 KB |
Output is correct |
40 |
Correct |
4 ms |
5020 KB |
Output is correct |
41 |
Correct |
4 ms |
5076 KB |
Output is correct |
42 |
Correct |
4 ms |
5076 KB |
Output is correct |
43 |
Correct |
3 ms |
5076 KB |
Output is correct |
44 |
Correct |
5 ms |
5012 KB |
Output is correct |
45 |
Correct |
4 ms |
5076 KB |
Output is correct |
46 |
Correct |
4 ms |
5076 KB |
Output is correct |
47 |
Correct |
4 ms |
5076 KB |
Output is correct |
48 |
Correct |
4 ms |
5076 KB |
Output is correct |
49 |
Correct |
4 ms |
5076 KB |
Output is correct |
50 |
Correct |
5 ms |
5076 KB |
Output is correct |
51 |
Correct |
5 ms |
5076 KB |
Output is correct |
52 |
Correct |
5 ms |
5076 KB |
Output is correct |
53 |
Correct |
4 ms |
5076 KB |
Output is correct |
54 |
Correct |
5 ms |
5020 KB |
Output is correct |
55 |
Correct |
4 ms |
5016 KB |
Output is correct |
56 |
Correct |
4 ms |
5076 KB |
Output is correct |
57 |
Correct |
4 ms |
5204 KB |
Output is correct |
58 |
Correct |
4 ms |
5020 KB |
Output is correct |
59 |
Correct |
4 ms |
5076 KB |
Output is correct |
60 |
Correct |
4 ms |
5076 KB |
Output is correct |
61 |
Correct |
4 ms |
5076 KB |
Output is correct |
62 |
Correct |
4 ms |
5076 KB |
Output is correct |
63 |
Correct |
4 ms |
5012 KB |
Output is correct |
64 |
Correct |
222 ms |
14356 KB |
Output is correct |
65 |
Correct |
198 ms |
14432 KB |
Output is correct |
66 |
Correct |
188 ms |
14404 KB |
Output is correct |
67 |
Correct |
219 ms |
14400 KB |
Output is correct |
68 |
Correct |
204 ms |
14416 KB |
Output is correct |
69 |
Correct |
189 ms |
14516 KB |
Output is correct |
70 |
Correct |
226 ms |
14400 KB |
Output is correct |
71 |
Correct |
213 ms |
14356 KB |
Output is correct |
72 |
Correct |
258 ms |
14424 KB |
Output is correct |
73 |
Correct |
238 ms |
26912 KB |
Output is correct |
74 |
Correct |
237 ms |
26916 KB |
Output is correct |
75 |
Correct |
224 ms |
14268 KB |
Output is correct |
76 |
Correct |
196 ms |
14316 KB |
Output is correct |
77 |
Correct |
210 ms |
14288 KB |
Output is correct |
78 |
Correct |
213 ms |
14272 KB |
Output is correct |
79 |
Correct |
214 ms |
14328 KB |
Output is correct |
80 |
Correct |
226 ms |
14348 KB |
Output is correct |
81 |
Correct |
186 ms |
14772 KB |
Output is correct |
82 |
Correct |
191 ms |
14504 KB |
Output is correct |
83 |
Correct |
213 ms |
19452 KB |
Output is correct |
84 |
Correct |
205 ms |
21536 KB |
Output is correct |
85 |
Correct |
228 ms |
21344 KB |
Output is correct |
86 |
Correct |
205 ms |
15704 KB |
Output is correct |
87 |
Correct |
192 ms |
15064 KB |
Output is correct |
88 |
Correct |
197 ms |
15552 KB |
Output is correct |
89 |
Correct |
242 ms |
15572 KB |
Output is correct |
90 |
Correct |
184 ms |
15356 KB |
Output is correct |
91 |
Correct |
212 ms |
15644 KB |
Output is correct |
92 |
Correct |
255 ms |
15980 KB |
Output is correct |
93 |
Correct |
177 ms |
18248 KB |
Output is correct |
94 |
Correct |
199 ms |
20092 KB |
Output is correct |
95 |
Correct |
206 ms |
18716 KB |
Output is correct |
96 |
Correct |
191 ms |
16908 KB |
Output is correct |
97 |
Correct |
195 ms |
15356 KB |
Output is correct |
98 |
Correct |
204 ms |
14964 KB |
Output is correct |
99 |
Correct |
208 ms |
14844 KB |
Output is correct |
100 |
Correct |
241 ms |
17916 KB |
Output is correct |
101 |
Correct |
210 ms |
15844 KB |
Output is correct |
102 |
Correct |
178 ms |
15072 KB |
Output is correct |
103 |
Correct |
209 ms |
15060 KB |
Output is correct |
104 |
Correct |
166 ms |
15296 KB |
Output is correct |
105 |
Correct |
217 ms |
23764 KB |
Output is correct |
106 |
Correct |
154 ms |
15092 KB |
Output is correct |
107 |
Correct |
201 ms |
15168 KB |
Output is correct |
108 |
Correct |
226 ms |
27748 KB |
Output is correct |
109 |
Correct |
160 ms |
15256 KB |
Output is correct |
110 |
Correct |
257 ms |
28056 KB |
Output is correct |
111 |
Correct |
216 ms |
14324 KB |
Output is correct |