#include <bits/stdc++.h>
using namespace std;
string s;
vector<int> V[200005], dp(200005, 0);
bool vis[200005];
void dfs(int v, int root) {
vis[v] = 1;
dp[v] = s[v - 1] - '0';
int rb = 0, rc = 0;
for(int i = 0; i < V[v].size(); i++) {
int u = V[v][i];
if(!vis[u]) {
dfs(u, root);
rb += dp[u];
rc = max(rc, dp[u]);
}
}
if(v == root)
dp[v] = rc + 1;
else {
rb -= s[v-1] - '0';
dp[v] = max(dp[v], rb);
}
}
int main() {
int n;
cin>>n;
for(int i=0; i<(n-1); i++) {
int a, b;
cin>>a>>b;
V[a].push_back(b);
V[b].push_back(a);
}
cin>>s;
int ans = 0;
for(int i=1; i<=n; i++) {
if(s[i-1] == '1') {
for(int i = 1; i <= n; i++) dp[i] = vis[i] = 0;
dfs(i, i);
ans = max(ans, dp[i]);
}
}
cout<<ans;
}
Compilation message
power.cpp: In function 'void dfs(int, int)':
power.cpp:12:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
12 | for(int i = 0; i < V[v].size(); i++) {
| ~~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 2 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5772 KB |
Output is correct |
| 5 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5956 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5880 KB |
Output is correct |
| 12 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 13 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5948 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 16 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 17 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 18 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 20 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5720 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 2 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5772 KB |
Output is correct |
| 5 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5956 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5880 KB |
Output is correct |
| 12 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 13 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5948 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 16 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 17 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 18 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 20 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 22 |
Correct |
57 ms |
6020 KB |
Output is correct |
| 23 |
Correct |
55 ms |
6024 KB |
Output is correct |
| 24 |
Correct |
50 ms |
6224 KB |
Output is correct |
| 25 |
Correct |
30 ms |
5980 KB |
Output is correct |
| 26 |
Correct |
16 ms |
6052 KB |
Output is correct |
| 27 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 29 |
Correct |
72 ms |
6224 KB |
Output is correct |
| 30 |
Correct |
38 ms |
5976 KB |
Output is correct |
| 31 |
Correct |
54 ms |
6024 KB |
Output is correct |
| 32 |
Correct |
28 ms |
5980 KB |
Output is correct |
| 33 |
Correct |
60 ms |
5980 KB |
Output is correct |
| 34 |
Correct |
36 ms |
6228 KB |
Output is correct |
| 35 |
Correct |
17 ms |
5980 KB |
Output is correct |
| 36 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 37 |
Correct |
39 ms |
5980 KB |
Output is correct |
| 38 |
Correct |
29 ms |
5980 KB |
Output is correct |
| 39 |
Correct |
67 ms |
6116 KB |
Output is correct |
| 40 |
Correct |
35 ms |
5980 KB |
Output is correct |
| 41 |
Correct |
19 ms |
5980 KB |
Output is correct |
| 42 |
Correct |
42 ms |
5980 KB |
Output is correct |
| 43 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 44 |
Correct |
66 ms |
6072 KB |
Output is correct |
| 45 |
Correct |
51 ms |
6228 KB |
Output is correct |
| 46 |
Correct |
30 ms |
5980 KB |
Output is correct |
| 47 |
Correct |
16 ms |
5976 KB |
Output is correct |
| 48 |
Correct |
56 ms |
6108 KB |
Output is correct |
| 49 |
Correct |
63 ms |
6232 KB |
Output is correct |
| 50 |
Correct |
71 ms |
5980 KB |
Output is correct |
| 51 |
Correct |
57 ms |
5980 KB |
Output is correct |
| 52 |
Correct |
52 ms |
5980 KB |
Output is correct |
| 53 |
Correct |
42 ms |
5976 KB |
Output is correct |
| 54 |
Correct |
55 ms |
6060 KB |
Output is correct |
| 55 |
Correct |
56 ms |
5980 KB |
Output is correct |
| 56 |
Correct |
4 ms |
5976 KB |
Output is correct |
| 57 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 58 |
Correct |
41 ms |
5980 KB |
Output is correct |
| 59 |
Correct |
43 ms |
6040 KB |
Output is correct |
| 60 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 61 |
Correct |
3 ms |
6232 KB |
Output is correct |
| 62 |
Correct |
3 ms |
5976 KB |
Output is correct |
| 63 |
Correct |
51 ms |
6228 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 2 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 3 |
Correct |
2 ms |
5956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
5772 KB |
Output is correct |
| 5 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 6 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 7 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5724 KB |
Output is correct |
| 9 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 10 |
Correct |
3 ms |
5956 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5880 KB |
Output is correct |
| 12 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 13 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5948 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 16 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 17 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 18 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5724 KB |
Output is correct |
| 20 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5720 KB |
Output is correct |
| 22 |
Correct |
57 ms |
6020 KB |
Output is correct |
| 23 |
Correct |
55 ms |
6024 KB |
Output is correct |
| 24 |
Correct |
50 ms |
6224 KB |
Output is correct |
| 25 |
Correct |
30 ms |
5980 KB |
Output is correct |
| 26 |
Correct |
16 ms |
6052 KB |
Output is correct |
| 27 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5980 KB |
Output is correct |
| 29 |
Correct |
72 ms |
6224 KB |
Output is correct |
| 30 |
Correct |
38 ms |
5976 KB |
Output is correct |
| 31 |
Correct |
54 ms |
6024 KB |
Output is correct |
| 32 |
Correct |
28 ms |
5980 KB |
Output is correct |
| 33 |
Correct |
60 ms |
5980 KB |
Output is correct |
| 34 |
Correct |
36 ms |
6228 KB |
Output is correct |
| 35 |
Correct |
17 ms |
5980 KB |
Output is correct |
| 36 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 37 |
Correct |
39 ms |
5980 KB |
Output is correct |
| 38 |
Correct |
29 ms |
5980 KB |
Output is correct |
| 39 |
Correct |
67 ms |
6116 KB |
Output is correct |
| 40 |
Correct |
35 ms |
5980 KB |
Output is correct |
| 41 |
Correct |
19 ms |
5980 KB |
Output is correct |
| 42 |
Correct |
42 ms |
5980 KB |
Output is correct |
| 43 |
Correct |
9 ms |
5980 KB |
Output is correct |
| 44 |
Correct |
66 ms |
6072 KB |
Output is correct |
| 45 |
Correct |
51 ms |
6228 KB |
Output is correct |
| 46 |
Correct |
30 ms |
5980 KB |
Output is correct |
| 47 |
Correct |
16 ms |
5976 KB |
Output is correct |
| 48 |
Correct |
56 ms |
6108 KB |
Output is correct |
| 49 |
Correct |
63 ms |
6232 KB |
Output is correct |
| 50 |
Correct |
71 ms |
5980 KB |
Output is correct |
| 51 |
Correct |
57 ms |
5980 KB |
Output is correct |
| 52 |
Correct |
52 ms |
5980 KB |
Output is correct |
| 53 |
Correct |
42 ms |
5976 KB |
Output is correct |
| 54 |
Correct |
55 ms |
6060 KB |
Output is correct |
| 55 |
Correct |
56 ms |
5980 KB |
Output is correct |
| 56 |
Correct |
4 ms |
5976 KB |
Output is correct |
| 57 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 58 |
Correct |
41 ms |
5980 KB |
Output is correct |
| 59 |
Correct |
43 ms |
6040 KB |
Output is correct |
| 60 |
Correct |
3 ms |
5980 KB |
Output is correct |
| 61 |
Correct |
3 ms |
6232 KB |
Output is correct |
| 62 |
Correct |
3 ms |
5976 KB |
Output is correct |
| 63 |
Correct |
51 ms |
6228 KB |
Output is correct |
| 64 |
Execution timed out |
1591 ms |
15532 KB |
Time limit exceeded |
| 65 |
Halted |
0 ms |
0 KB |
- |
