#include<bits/stdc++.h>
using namespace std;
const int N = 200'000;
#define vec vector
#define pb push_back
int dp[N][2];
vec<int> tree[N];
string s;
void dfs(int u, int p = -1) {
for(int v : tree[u]) {
if(p==v) continue;
dfs(v, u);
}
int a = 1; int b = -1; int c = 0;
for(int v : tree[u]) {
if(v==p) continue;
a = max(dp[v][1]+1, a);
b += dp[v][1];
c = max(dp[v][0], c);
}
if(s[u] == '1') {
dp[u][0] = max(max(a, b), c);
dp[u][1] = max(b, 1);
}
else {
dp[u][1] = b+1;
dp[u][0] = max(c, b+1);
}
}
int main() {
int n;
cin >> n;
for(int i = 0; i<n-1; i++) {
int u, v;
cin >> u >> v;
u--; v--;
tree[u].pb(v);
tree[v].pb(u);
}
cin >> s;
dfs(0);
cout << dp[0][0] << '\n';
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 17 |
Correct |
1 ms |
5144 KB |
Output is correct |
| 18 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 19 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 20 |
Correct |
1 ms |
5208 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5136 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 17 |
Correct |
1 ms |
5144 KB |
Output is correct |
| 18 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 19 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 20 |
Correct |
1 ms |
5208 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5136 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 23 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 24 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 26 |
Correct |
2 ms |
5004 KB |
Output is correct |
| 27 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 28 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 29 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 30 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 31 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 32 |
Correct |
2 ms |
5168 KB |
Output is correct |
| 33 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 34 |
Correct |
3 ms |
5172 KB |
Output is correct |
| 35 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 36 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 38 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 39 |
Correct |
2 ms |
5156 KB |
Output is correct |
| 40 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 41 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 42 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 43 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 44 |
Correct |
2 ms |
5192 KB |
Output is correct |
| 45 |
Correct |
2 ms |
5464 KB |
Output is correct |
| 46 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 47 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 48 |
Correct |
3 ms |
5152 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5212 KB |
Output is correct |
| 50 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 51 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 52 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 53 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 54 |
Correct |
2 ms |
5148 KB |
Output is correct |
| 55 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 56 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 57 |
Correct |
3 ms |
5220 KB |
Output is correct |
| 58 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 59 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 60 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 61 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5212 KB |
Output is correct |
| 63 |
Correct |
3 ms |
5208 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 17 |
Correct |
1 ms |
5144 KB |
Output is correct |
| 18 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 19 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 20 |
Correct |
1 ms |
5208 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5136 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 23 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 24 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 26 |
Correct |
2 ms |
5004 KB |
Output is correct |
| 27 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 28 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 29 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 30 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 31 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 32 |
Correct |
2 ms |
5168 KB |
Output is correct |
| 33 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 34 |
Correct |
3 ms |
5172 KB |
Output is correct |
| 35 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 36 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 38 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 39 |
Correct |
2 ms |
5156 KB |
Output is correct |
| 40 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 41 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 42 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 43 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 44 |
Correct |
2 ms |
5192 KB |
Output is correct |
| 45 |
Correct |
2 ms |
5464 KB |
Output is correct |
| 46 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 47 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 48 |
Correct |
3 ms |
5152 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5212 KB |
Output is correct |
| 50 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 51 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 52 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 53 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 54 |
Correct |
2 ms |
5148 KB |
Output is correct |
| 55 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 56 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 57 |
Correct |
3 ms |
5220 KB |
Output is correct |
| 58 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 59 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 60 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 61 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5212 KB |
Output is correct |
| 63 |
Correct |
3 ms |
5208 KB |
Output is correct |
| 64 |
Correct |
145 ms |
16004 KB |
Output is correct |
| 65 |
Correct |
143 ms |
16052 KB |
Output is correct |
| 66 |
Correct |
174 ms |
16116 KB |
Output is correct |
| 67 |
Correct |
167 ms |
15948 KB |
Output is correct |
| 68 |
Correct |
150 ms |
16024 KB |
Output is correct |
| 69 |
Correct |
188 ms |
15956 KB |
Output is correct |
| 70 |
Correct |
161 ms |
15964 KB |
Output is correct |
| 71 |
Correct |
130 ms |
15956 KB |
Output is correct |
| 72 |
Correct |
155 ms |
16108 KB |
Output is correct |
| 73 |
Correct |
167 ms |
28580 KB |
Output is correct |
| 74 |
Correct |
141 ms |
28516 KB |
Output is correct |
| 75 |
Correct |
127 ms |
15948 KB |
Output is correct |
| 76 |
Correct |
132 ms |
15952 KB |
Output is correct |
| 77 |
Correct |
168 ms |
15816 KB |
Output is correct |
| 78 |
Correct |
134 ms |
15840 KB |
Output is correct |
| 79 |
Correct |
184 ms |
15784 KB |
Output is correct |
| 80 |
Correct |
168 ms |
16096 KB |
Output is correct |
| 81 |
Correct |
122 ms |
16252 KB |
Output is correct |
| 82 |
Correct |
133 ms |
16288 KB |
Output is correct |
| 83 |
Correct |
147 ms |
20972 KB |
Output is correct |
| 84 |
Correct |
143 ms |
23268 KB |
Output is correct |
| 85 |
Correct |
148 ms |
22948 KB |
Output is correct |
| 86 |
Correct |
168 ms |
17384 KB |
Output is correct |
| 87 |
Correct |
141 ms |
16868 KB |
Output is correct |
| 88 |
Correct |
127 ms |
17288 KB |
Output is correct |
| 89 |
Correct |
126 ms |
17308 KB |
Output is correct |
| 90 |
Correct |
157 ms |
17184 KB |
Output is correct |
| 91 |
Correct |
140 ms |
17348 KB |
Output is correct |
| 92 |
Correct |
154 ms |
17648 KB |
Output is correct |
| 93 |
Correct |
143 ms |
20004 KB |
Output is correct |
| 94 |
Correct |
133 ms |
21652 KB |
Output is correct |
| 95 |
Correct |
200 ms |
20312 KB |
Output is correct |
| 96 |
Correct |
132 ms |
18568 KB |
Output is correct |
| 97 |
Correct |
137 ms |
17120 KB |
Output is correct |
| 98 |
Correct |
125 ms |
16612 KB |
Output is correct |
| 99 |
Correct |
154 ms |
16356 KB |
Output is correct |
| 100 |
Correct |
149 ms |
19692 KB |
Output is correct |
| 101 |
Correct |
139 ms |
17540 KB |
Output is correct |
| 102 |
Correct |
164 ms |
16712 KB |
Output is correct |
| 103 |
Correct |
139 ms |
16648 KB |
Output is correct |
| 104 |
Correct |
121 ms |
16940 KB |
Output is correct |
| 105 |
Correct |
162 ms |
25312 KB |
Output is correct |
| 106 |
Correct |
104 ms |
16684 KB |
Output is correct |
| 107 |
Correct |
109 ms |
16580 KB |
Output is correct |
| 108 |
Correct |
188 ms |
29408 KB |
Output is correct |
| 109 |
Correct |
112 ms |
16836 KB |
Output is correct |
| 110 |
Correct |
158 ms |
29668 KB |
Output is correct |
| 111 |
Correct |
121 ms |
15888 KB |
Output is correct |
