#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
typedef long long ll;
typedef long double ld;
#define int ll
#define f first
#define s second
#define pb push_back
#define vi vector<int>
#define pii pair<int, int>
using namespace std;
const int maxn = 2e5 + 50;
vi r[maxn];
int ans = 0;
int dp[maxn];
string s;
void dfs(int v, int p = -1) {
dp[v] = -(s[v] - '0');
for (auto &u : r[v]) {
if (u != p) {
dfs(u, v);
dp[v] += max(int(s[u] - '0'), dp[u]);
}
}
}
void dfs2(int v, int p = -1) {
ans = max(ans, int(s[v] - '0'));
ans = max(ans, dp[v]);
for (auto &u : r[v])
ans = max(ans, max(int(s[u] - '0'), dp[u]) + (s[v] - '0'));
for (auto &u : r[v]) {
if (u != p) {
dp[v] -= max(int(s[u] - '0'), dp[u]);
dp[u] += max(int(s[v] - '0'), dp[v]);
dfs2(u, v);
dp[u] -= max(int(s[v] - '0'), dp[v]);
dp[v] += max(int(s[u] - '0'), dp[u]);
}
}
}
void solve() {
int n;
cin >> n;
for (int i = 0; i < n - 1; ++i) {
int a, b;
cin >> a >> b;
a--;
b--;
r[a].pb(b);
r[b].pb(a);
}
cin >> s;
dfs(0);
dfs2(0);
cout << ans << '\n';
}
signed main() {
// freopen("kthsubstr.in", "r", stdin);
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.precision(10);
int t;
t = 1;
while (t--)
solve();
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 7 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 8 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 10 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 12 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 13 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 14 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 15 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 17 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 18 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4972 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 7 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 8 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 10 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 12 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 13 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 14 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 15 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 17 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 18 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 22 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 23 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 24 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 25 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 26 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 28 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 29 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 40 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 41 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 43 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 44 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 45 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 46 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 47 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 48 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 50 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 51 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 52 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 53 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 54 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 55 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 56 |
Correct |
4 ms |
5120 KB |
Output is correct |
| 57 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 58 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 59 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 60 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 61 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5100 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 7 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 8 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 10 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 12 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 13 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 14 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 15 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 17 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 18 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4972 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 22 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 23 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 24 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 25 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 26 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 28 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 29 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 40 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 41 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 43 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 44 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 45 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 46 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 47 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 48 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 50 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 51 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 52 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 53 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 54 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 55 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 56 |
Correct |
4 ms |
5120 KB |
Output is correct |
| 57 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 58 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 59 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 60 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 61 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5228 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 64 |
Correct |
214 ms |
16944 KB |
Output is correct |
| 65 |
Correct |
233 ms |
17068 KB |
Output is correct |
| 66 |
Correct |
212 ms |
16924 KB |
Output is correct |
| 67 |
Correct |
227 ms |
16936 KB |
Output is correct |
| 68 |
Correct |
203 ms |
16924 KB |
Output is correct |
| 69 |
Correct |
204 ms |
17064 KB |
Output is correct |
| 70 |
Correct |
207 ms |
16956 KB |
Output is correct |
| 71 |
Correct |
203 ms |
16952 KB |
Output is correct |
| 72 |
Correct |
200 ms |
16936 KB |
Output is correct |
| 73 |
Correct |
256 ms |
23596 KB |
Output is correct |
| 74 |
Correct |
229 ms |
23452 KB |
Output is correct |
| 75 |
Correct |
234 ms |
18216 KB |
Output is correct |
| 76 |
Correct |
212 ms |
18248 KB |
Output is correct |
| 77 |
Correct |
219 ms |
16932 KB |
Output is correct |
| 78 |
Correct |
209 ms |
16936 KB |
Output is correct |
| 79 |
Correct |
214 ms |
16944 KB |
Output is correct |
| 80 |
Correct |
208 ms |
16936 KB |
Output is correct |
| 81 |
Correct |
174 ms |
17120 KB |
Output is correct |
| 82 |
Correct |
188 ms |
17200 KB |
Output is correct |
| 83 |
Correct |
235 ms |
20016 KB |
Output is correct |
| 84 |
Correct |
220 ms |
21308 KB |
Output is correct |
| 85 |
Correct |
221 ms |
21048 KB |
Output is correct |
| 86 |
Correct |
255 ms |
17836 KB |
Output is correct |
| 87 |
Correct |
232 ms |
17400 KB |
Output is correct |
| 88 |
Correct |
227 ms |
17640 KB |
Output is correct |
| 89 |
Correct |
217 ms |
17596 KB |
Output is correct |
| 90 |
Correct |
240 ms |
17424 KB |
Output is correct |
| 91 |
Correct |
204 ms |
17552 KB |
Output is correct |
| 92 |
Correct |
218 ms |
17820 KB |
Output is correct |
| 93 |
Correct |
203 ms |
19044 KB |
Output is correct |
| 94 |
Correct |
182 ms |
19936 KB |
Output is correct |
| 95 |
Correct |
175 ms |
19292 KB |
Output is correct |
| 96 |
Correct |
231 ms |
18316 KB |
Output is correct |
| 97 |
Correct |
203 ms |
17284 KB |
Output is correct |
| 98 |
Correct |
200 ms |
17116 KB |
Output is correct |
| 99 |
Correct |
209 ms |
17068 KB |
Output is correct |
| 100 |
Correct |
213 ms |
18780 KB |
Output is correct |
| 101 |
Correct |
192 ms |
17448 KB |
Output is correct |
| 102 |
Correct |
202 ms |
17168 KB |
Output is correct |
| 103 |
Correct |
194 ms |
17228 KB |
Output is correct |
| 104 |
Correct |
116 ms |
17628 KB |
Output is correct |
| 105 |
Correct |
245 ms |
21548 KB |
Output is correct |
| 106 |
Correct |
148 ms |
17500 KB |
Output is correct |
| 107 |
Correct |
108 ms |
17500 KB |
Output is correct |
| 108 |
Correct |
252 ms |
23980 KB |
Output is correct |
| 109 |
Correct |
115 ms |
17628 KB |
Output is correct |
| 110 |
Correct |
248 ms |
24168 KB |
Output is correct |
| 111 |
Correct |
199 ms |
16956 KB |
Output is correct |
