#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5;
int n, ans, dp[MAXN];
vector<int> g[MAXN];
string s;
void dfs(int u, int p){
if(s[u] - '0') dp[u] = -1;
for(int &v : g[u]){
if(v == p) continue;
dfs(v, u);
if(s[u] - '0') ans = max(ans, 1 + dp[v]);
dp[u] += dp[v];
}
dp[u] = max(dp[u], s[u] - '0');
ans = max(ans, dp[u]);
}
signed main(){
cin.tie(0)->sync_with_stdio(0);
cin >> n;
for(int i=1; i<n; ++i){
int u, v; cin >> u >> v;
--u, --v;
g[u].push_back(v);
g[v].push_back(u);
}
cin >> s;
dfs(0, 0);
cout << ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 9 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 11 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 14 |
Correct |
3 ms |
4984 KB |
Output is correct |
| 15 |
Correct |
4 ms |
5016 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
4 ms |
5020 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4940 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 9 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 11 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 14 |
Correct |
3 ms |
4984 KB |
Output is correct |
| 15 |
Correct |
4 ms |
5016 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
4 ms |
5020 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 22 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 23 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 24 |
Correct |
5 ms |
5068 KB |
Output is correct |
| 25 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 29 |
Correct |
5 ms |
5196 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5000 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5032 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5068 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5160 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5024 KB |
Output is correct |
| 41 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5040 KB |
Output is correct |
| 43 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 44 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 45 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 46 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 47 |
Correct |
4 ms |
5032 KB |
Output is correct |
| 48 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5060 KB |
Output is correct |
| 50 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 51 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 52 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 53 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 54 |
Correct |
3 ms |
5032 KB |
Output is correct |
| 55 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 56 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 57 |
Correct |
5 ms |
5196 KB |
Output is correct |
| 58 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 59 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 60 |
Correct |
3 ms |
5092 KB |
Output is correct |
| 61 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5024 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 9 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 11 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 14 |
Correct |
3 ms |
4984 KB |
Output is correct |
| 15 |
Correct |
4 ms |
5016 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
4 ms |
5020 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 22 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 23 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 24 |
Correct |
5 ms |
5068 KB |
Output is correct |
| 25 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 29 |
Correct |
5 ms |
5196 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5000 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5032 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5068 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5160 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5024 KB |
Output is correct |
| 41 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5040 KB |
Output is correct |
| 43 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 44 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 45 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 46 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 47 |
Correct |
4 ms |
5032 KB |
Output is correct |
| 48 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5060 KB |
Output is correct |
| 50 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 51 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 52 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 53 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 54 |
Correct |
3 ms |
5032 KB |
Output is correct |
| 55 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 56 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 57 |
Correct |
5 ms |
5196 KB |
Output is correct |
| 58 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 59 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 60 |
Correct |
3 ms |
5092 KB |
Output is correct |
| 61 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5024 KB |
Output is correct |
| 64 |
Correct |
145 ms |
12992 KB |
Output is correct |
| 65 |
Correct |
136 ms |
12940 KB |
Output is correct |
| 66 |
Correct |
138 ms |
12956 KB |
Output is correct |
| 67 |
Correct |
134 ms |
12956 KB |
Output is correct |
| 68 |
Correct |
164 ms |
12936 KB |
Output is correct |
| 69 |
Correct |
157 ms |
12904 KB |
Output is correct |
| 70 |
Correct |
151 ms |
12864 KB |
Output is correct |
| 71 |
Correct |
138 ms |
12892 KB |
Output is correct |
| 72 |
Correct |
149 ms |
13104 KB |
Output is correct |
| 73 |
Correct |
177 ms |
22936 KB |
Output is correct |
| 74 |
Correct |
139 ms |
23060 KB |
Output is correct |
| 75 |
Correct |
164 ms |
12788 KB |
Output is correct |
| 76 |
Correct |
155 ms |
12812 KB |
Output is correct |
| 77 |
Correct |
159 ms |
12804 KB |
Output is correct |
| 78 |
Correct |
155 ms |
12796 KB |
Output is correct |
| 79 |
Correct |
140 ms |
12820 KB |
Output is correct |
| 80 |
Correct |
131 ms |
12876 KB |
Output is correct |
| 81 |
Correct |
129 ms |
13260 KB |
Output is correct |
| 82 |
Correct |
129 ms |
13052 KB |
Output is correct |
| 83 |
Correct |
166 ms |
16940 KB |
Output is correct |
| 84 |
Correct |
151 ms |
18664 KB |
Output is correct |
| 85 |
Correct |
144 ms |
18440 KB |
Output is correct |
| 86 |
Correct |
167 ms |
14084 KB |
Output is correct |
| 87 |
Correct |
157 ms |
13596 KB |
Output is correct |
| 88 |
Correct |
136 ms |
13992 KB |
Output is correct |
| 89 |
Correct |
149 ms |
14008 KB |
Output is correct |
| 90 |
Correct |
175 ms |
13900 KB |
Output is correct |
| 91 |
Correct |
154 ms |
14128 KB |
Output is correct |
| 92 |
Correct |
193 ms |
14576 KB |
Output is correct |
| 93 |
Correct |
136 ms |
16448 KB |
Output is correct |
| 94 |
Correct |
182 ms |
17928 KB |
Output is correct |
| 95 |
Correct |
138 ms |
16788 KB |
Output is correct |
| 96 |
Correct |
152 ms |
15332 KB |
Output is correct |
| 97 |
Correct |
176 ms |
14168 KB |
Output is correct |
| 98 |
Correct |
143 ms |
13760 KB |
Output is correct |
| 99 |
Correct |
163 ms |
13652 KB |
Output is correct |
| 100 |
Correct |
151 ms |
16080 KB |
Output is correct |
| 101 |
Correct |
170 ms |
14468 KB |
Output is correct |
| 102 |
Correct |
153 ms |
13868 KB |
Output is correct |
| 103 |
Correct |
192 ms |
13684 KB |
Output is correct |
| 104 |
Correct |
116 ms |
13916 KB |
Output is correct |
| 105 |
Correct |
185 ms |
20756 KB |
Output is correct |
| 106 |
Correct |
112 ms |
13988 KB |
Output is correct |
| 107 |
Correct |
107 ms |
14008 KB |
Output is correct |
| 108 |
Correct |
171 ms |
23904 KB |
Output is correct |
| 109 |
Correct |
92 ms |
13968 KB |
Output is correct |
| 110 |
Correct |
176 ms |
24228 KB |
Output is correct |
| 111 |
Correct |
147 ms |
13088 KB |
Output is correct |
