#include <iostream>
#include <vector>
#include <string>
using namespace std;
int n, ans = 0;
string s;
vector<vector<int>> adj;
vector<int> dp;
void bfs(int node, int parent) {
int mx = 0, sum = 0, val = s[node] - '0';
for(int i : adj[node]) {
if(i == parent) continue;
bfs(i, node);
mx = max(mx, dp[i]);
sum += dp[i];
}
ans = max(ans, mx + val);
ans = max(ans, sum - val);
dp[node] = max(dp[node], mx - val);
dp[node] = max(dp[node], sum - val);
dp[node] = max(dp[node], val);
ans = max(ans, dp[node]);
}
void solve() {
cin >> n;
dp.resize(n, 0); adj.resize(n);
for(int i = 0; i < n - 1; i++) {
int a, b;
cin >> a >> b;
a--; b--;
adj[a].push_back(b);
adj[b].push_back(a);
}
cin >> s;
bfs(0, -1);
cout << ans << endl;
}
int main() {
ios_base::sync_with_stdio(false);
solve();
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
492 KB |
Output is correct |
| 23 |
Correct |
1 ms |
492 KB |
Output is correct |
| 24 |
Correct |
1 ms |
492 KB |
Output is correct |
| 25 |
Correct |
1 ms |
492 KB |
Output is correct |
| 26 |
Correct |
2 ms |
492 KB |
Output is correct |
| 27 |
Correct |
2 ms |
492 KB |
Output is correct |
| 28 |
Correct |
1 ms |
492 KB |
Output is correct |
| 29 |
Correct |
1 ms |
620 KB |
Output is correct |
| 30 |
Correct |
1 ms |
620 KB |
Output is correct |
| 31 |
Correct |
1 ms |
492 KB |
Output is correct |
| 32 |
Correct |
1 ms |
492 KB |
Output is correct |
| 33 |
Correct |
2 ms |
492 KB |
Output is correct |
| 34 |
Correct |
1 ms |
512 KB |
Output is correct |
| 35 |
Correct |
1 ms |
504 KB |
Output is correct |
| 36 |
Correct |
1 ms |
492 KB |
Output is correct |
| 37 |
Correct |
1 ms |
492 KB |
Output is correct |
| 38 |
Correct |
1 ms |
492 KB |
Output is correct |
| 39 |
Correct |
1 ms |
492 KB |
Output is correct |
| 40 |
Correct |
1 ms |
492 KB |
Output is correct |
| 41 |
Correct |
1 ms |
492 KB |
Output is correct |
| 42 |
Correct |
1 ms |
492 KB |
Output is correct |
| 43 |
Correct |
1 ms |
492 KB |
Output is correct |
| 44 |
Correct |
1 ms |
492 KB |
Output is correct |
| 45 |
Correct |
1 ms |
492 KB |
Output is correct |
| 46 |
Correct |
1 ms |
492 KB |
Output is correct |
| 47 |
Correct |
1 ms |
492 KB |
Output is correct |
| 48 |
Correct |
1 ms |
620 KB |
Output is correct |
| 49 |
Correct |
1 ms |
620 KB |
Output is correct |
| 50 |
Correct |
1 ms |
492 KB |
Output is correct |
| 51 |
Correct |
1 ms |
492 KB |
Output is correct |
| 52 |
Correct |
1 ms |
492 KB |
Output is correct |
| 53 |
Correct |
1 ms |
492 KB |
Output is correct |
| 54 |
Correct |
1 ms |
492 KB |
Output is correct |
| 55 |
Correct |
1 ms |
492 KB |
Output is correct |
| 56 |
Correct |
1 ms |
492 KB |
Output is correct |
| 57 |
Correct |
1 ms |
620 KB |
Output is correct |
| 58 |
Correct |
1 ms |
492 KB |
Output is correct |
| 59 |
Correct |
1 ms |
492 KB |
Output is correct |
| 60 |
Correct |
1 ms |
620 KB |
Output is correct |
| 61 |
Correct |
1 ms |
492 KB |
Output is correct |
| 62 |
Correct |
1 ms |
620 KB |
Output is correct |
| 63 |
Correct |
1 ms |
492 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
492 KB |
Output is correct |
| 23 |
Correct |
1 ms |
492 KB |
Output is correct |
| 24 |
Correct |
1 ms |
492 KB |
Output is correct |
| 25 |
Correct |
1 ms |
492 KB |
Output is correct |
| 26 |
Correct |
2 ms |
492 KB |
Output is correct |
| 27 |
Correct |
2 ms |
492 KB |
Output is correct |
| 28 |
Correct |
1 ms |
492 KB |
Output is correct |
| 29 |
Correct |
1 ms |
620 KB |
Output is correct |
| 30 |
Correct |
1 ms |
620 KB |
Output is correct |
| 31 |
Correct |
1 ms |
492 KB |
Output is correct |
| 32 |
Correct |
1 ms |
492 KB |
Output is correct |
| 33 |
Correct |
2 ms |
492 KB |
Output is correct |
| 34 |
Correct |
1 ms |
512 KB |
Output is correct |
| 35 |
Correct |
1 ms |
504 KB |
Output is correct |
| 36 |
Correct |
1 ms |
492 KB |
Output is correct |
| 37 |
Correct |
1 ms |
492 KB |
Output is correct |
| 38 |
Correct |
1 ms |
492 KB |
Output is correct |
| 39 |
Correct |
1 ms |
492 KB |
Output is correct |
| 40 |
Correct |
1 ms |
492 KB |
Output is correct |
| 41 |
Correct |
1 ms |
492 KB |
Output is correct |
| 42 |
Correct |
1 ms |
492 KB |
Output is correct |
| 43 |
Correct |
1 ms |
492 KB |
Output is correct |
| 44 |
Correct |
1 ms |
492 KB |
Output is correct |
| 45 |
Correct |
1 ms |
492 KB |
Output is correct |
| 46 |
Correct |
1 ms |
492 KB |
Output is correct |
| 47 |
Correct |
1 ms |
492 KB |
Output is correct |
| 48 |
Correct |
1 ms |
620 KB |
Output is correct |
| 49 |
Correct |
1 ms |
620 KB |
Output is correct |
| 50 |
Correct |
1 ms |
492 KB |
Output is correct |
| 51 |
Correct |
1 ms |
492 KB |
Output is correct |
| 52 |
Correct |
1 ms |
492 KB |
Output is correct |
| 53 |
Correct |
1 ms |
492 KB |
Output is correct |
| 54 |
Correct |
1 ms |
492 KB |
Output is correct |
| 55 |
Correct |
1 ms |
492 KB |
Output is correct |
| 56 |
Correct |
1 ms |
492 KB |
Output is correct |
| 57 |
Correct |
1 ms |
620 KB |
Output is correct |
| 58 |
Correct |
1 ms |
492 KB |
Output is correct |
| 59 |
Correct |
1 ms |
492 KB |
Output is correct |
| 60 |
Correct |
1 ms |
620 KB |
Output is correct |
| 61 |
Correct |
1 ms |
492 KB |
Output is correct |
| 62 |
Correct |
1 ms |
620 KB |
Output is correct |
| 63 |
Correct |
1 ms |
492 KB |
Output is correct |
| 64 |
Correct |
175 ms |
15316 KB |
Output is correct |
| 65 |
Correct |
174 ms |
15440 KB |
Output is correct |
| 66 |
Correct |
173 ms |
15448 KB |
Output is correct |
| 67 |
Correct |
175 ms |
15440 KB |
Output is correct |
| 68 |
Correct |
174 ms |
15428 KB |
Output is correct |
| 69 |
Correct |
174 ms |
15308 KB |
Output is correct |
| 70 |
Correct |
174 ms |
15320 KB |
Output is correct |
| 71 |
Correct |
176 ms |
15332 KB |
Output is correct |
| 72 |
Correct |
180 ms |
15308 KB |
Output is correct |
| 73 |
Correct |
195 ms |
30380 KB |
Output is correct |
| 74 |
Correct |
200 ms |
30380 KB |
Output is correct |
| 75 |
Correct |
170 ms |
15308 KB |
Output is correct |
| 76 |
Correct |
170 ms |
15316 KB |
Output is correct |
| 77 |
Correct |
186 ms |
15284 KB |
Output is correct |
| 78 |
Correct |
175 ms |
15308 KB |
Output is correct |
| 79 |
Correct |
180 ms |
15316 KB |
Output is correct |
| 80 |
Correct |
181 ms |
15308 KB |
Output is correct |
| 81 |
Correct |
155 ms |
15588 KB |
Output is correct |
| 82 |
Correct |
157 ms |
15464 KB |
Output is correct |
| 83 |
Correct |
202 ms |
21424 KB |
Output is correct |
| 84 |
Correct |
185 ms |
23992 KB |
Output is correct |
| 85 |
Correct |
186 ms |
23608 KB |
Output is correct |
| 86 |
Correct |
175 ms |
16940 KB |
Output is correct |
| 87 |
Correct |
175 ms |
16168 KB |
Output is correct |
| 88 |
Correct |
160 ms |
16616 KB |
Output is correct |
| 89 |
Correct |
167 ms |
16568 KB |
Output is correct |
| 90 |
Correct |
163 ms |
16652 KB |
Output is correct |
| 91 |
Correct |
161 ms |
16656 KB |
Output is correct |
| 92 |
Correct |
166 ms |
17048 KB |
Output is correct |
| 93 |
Correct |
149 ms |
20092 KB |
Output is correct |
| 94 |
Correct |
160 ms |
22116 KB |
Output is correct |
| 95 |
Correct |
152 ms |
20452 KB |
Output is correct |
| 96 |
Correct |
155 ms |
18328 KB |
Output is correct |
| 97 |
Correct |
163 ms |
16516 KB |
Output is correct |
| 98 |
Correct |
154 ms |
15848 KB |
Output is correct |
| 99 |
Correct |
171 ms |
15820 KB |
Output is correct |
| 100 |
Correct |
163 ms |
19352 KB |
Output is correct |
| 101 |
Correct |
163 ms |
17064 KB |
Output is correct |
| 102 |
Correct |
154 ms |
16124 KB |
Output is correct |
| 103 |
Correct |
167 ms |
15840 KB |
Output is correct |
| 104 |
Correct |
119 ms |
16356 KB |
Output is correct |
| 105 |
Correct |
188 ms |
26540 KB |
Output is correct |
| 106 |
Correct |
113 ms |
15968 KB |
Output is correct |
| 107 |
Correct |
122 ms |
16096 KB |
Output is correct |
| 108 |
Correct |
201 ms |
31296 KB |
Output is correct |
| 109 |
Correct |
116 ms |
16188 KB |
Output is correct |
| 110 |
Correct |
200 ms |
31660 KB |
Output is correct |
| 111 |
Correct |
167 ms |
15316 KB |
Output is correct |
