#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
int n;
int cnt;
string s;
vector<int> adj[100005];
bool pw[100005];
int dp[100005][2];
void dfs(int v, int p = -1) {
if (s[v] == '1') dp[v][0] = 1;
int tot = 0, mx = 0;
for (int u : adj[v]) {
if (u == p) continue;
dfs(u, v);
tot += dp[u][0];
mx = max(mx, dp[u][0]);
}
dp[v][0] = max(tot - dp[v][0], dp[v][0]);
if (s[v] == '1') dp[v][1] = mx + 1;
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n;
for (int i = 1; i < n; i++) {
int u, v; cin >> u >> v;
u--; v--;
adj[u].push_back(v);
adj[v].push_back(u);
}
cin >> s;
for (int i = 0; i < n; i++) {
if (s[i] == '1') cnt++;
}
int ans = 0;
dfs(0);
for (int i = 0; i < n; i++) {
ans = max({ans, dp[i][0], dp[i][1]});
}
cout << ans << '\n';
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 17 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2636 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 17 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 24 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 27 |
Correct |
3 ms |
2732 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 29 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 30 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 31 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 32 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 33 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 34 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 35 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 37 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 39 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 40 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 41 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 42 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 43 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 44 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 45 |
Correct |
4 ms |
2764 KB |
Output is correct |
| 46 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 47 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 48 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 49 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 50 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 51 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 52 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 53 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 54 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 55 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 56 |
Correct |
2 ms |
2764 KB |
Output is correct |
| 57 |
Correct |
3 ms |
2892 KB |
Output is correct |
| 58 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 59 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 60 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 61 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 62 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 63 |
Correct |
3 ms |
2764 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 17 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 24 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 27 |
Correct |
3 ms |
2732 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 29 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 30 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 31 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 32 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 33 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 34 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 35 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 37 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 39 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 40 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 41 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 42 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 43 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 44 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 45 |
Correct |
4 ms |
2764 KB |
Output is correct |
| 46 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 47 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 48 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 49 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 50 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 51 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 52 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 53 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 54 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 55 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 56 |
Correct |
2 ms |
2764 KB |
Output is correct |
| 57 |
Correct |
3 ms |
2892 KB |
Output is correct |
| 58 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 59 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 60 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 61 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 62 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 63 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 64 |
Runtime error |
5 ms |
5108 KB |
Execution killed with signal 11 |
| 65 |
Halted |
0 ms |
0 KB |
- |
