#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()
const int N=2e5+5;
int n,ans=0;
vector<int>g[N];
string s;
int dp[N],e[N];
void dfs(int x,int p){
e[x]=(s[x]=='1'?1:0);
dp[x]=0;
for(int y:g[x]){
if(y!=p){
dfs(y,x);
dp[x]+=dp[y];
}
}
dp[x]=max(dp[x]-e[x],e[x]);
}
int main(){
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin>>n;
for(int i=1;i<n;i++){
int a,b;
cin>>a>>b;
a--,b--;
g[a].pb(b);
g[b].pb(a);
}
cin>>s;
for(int i=0;i<n;i++){
if(s[i]=='1'){
dfs(i,i);
for(int j:g[i]){
ans=max(ans,dp[j]+1);
}
ans=max(ans,dp[i]);
}
}
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6484 KB |
Output is correct |
2 |
Correct |
3 ms |
6564 KB |
Output is correct |
3 |
Correct |
4 ms |
6496 KB |
Output is correct |
4 |
Correct |
3 ms |
6496 KB |
Output is correct |
5 |
Correct |
3 ms |
6496 KB |
Output is correct |
6 |
Correct |
3 ms |
6496 KB |
Output is correct |
7 |
Correct |
2 ms |
6496 KB |
Output is correct |
8 |
Correct |
3 ms |
6496 KB |
Output is correct |
9 |
Correct |
3 ms |
6728 KB |
Output is correct |
10 |
Correct |
3 ms |
6524 KB |
Output is correct |
11 |
Correct |
4 ms |
6520 KB |
Output is correct |
12 |
Correct |
3 ms |
6552 KB |
Output is correct |
13 |
Correct |
2 ms |
6496 KB |
Output is correct |
14 |
Correct |
3 ms |
6648 KB |
Output is correct |
15 |
Correct |
3 ms |
6496 KB |
Output is correct |
16 |
Correct |
3 ms |
6496 KB |
Output is correct |
17 |
Correct |
3 ms |
6496 KB |
Output is correct |
18 |
Correct |
2 ms |
6496 KB |
Output is correct |
19 |
Correct |
2 ms |
6564 KB |
Output is correct |
20 |
Correct |
3 ms |
6496 KB |
Output is correct |
21 |
Correct |
3 ms |
6496 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6484 KB |
Output is correct |
2 |
Correct |
3 ms |
6564 KB |
Output is correct |
3 |
Correct |
4 ms |
6496 KB |
Output is correct |
4 |
Correct |
3 ms |
6496 KB |
Output is correct |
5 |
Correct |
3 ms |
6496 KB |
Output is correct |
6 |
Correct |
3 ms |
6496 KB |
Output is correct |
7 |
Correct |
2 ms |
6496 KB |
Output is correct |
8 |
Correct |
3 ms |
6496 KB |
Output is correct |
9 |
Correct |
3 ms |
6728 KB |
Output is correct |
10 |
Correct |
3 ms |
6524 KB |
Output is correct |
11 |
Correct |
4 ms |
6520 KB |
Output is correct |
12 |
Correct |
3 ms |
6552 KB |
Output is correct |
13 |
Correct |
2 ms |
6496 KB |
Output is correct |
14 |
Correct |
3 ms |
6648 KB |
Output is correct |
15 |
Correct |
3 ms |
6496 KB |
Output is correct |
16 |
Correct |
3 ms |
6496 KB |
Output is correct |
17 |
Correct |
3 ms |
6496 KB |
Output is correct |
18 |
Correct |
2 ms |
6496 KB |
Output is correct |
19 |
Correct |
2 ms |
6564 KB |
Output is correct |
20 |
Correct |
3 ms |
6496 KB |
Output is correct |
21 |
Correct |
3 ms |
6496 KB |
Output is correct |
22 |
Correct |
36 ms |
6640 KB |
Output is correct |
23 |
Correct |
33 ms |
6496 KB |
Output is correct |
24 |
Correct |
29 ms |
6576 KB |
Output is correct |
25 |
Correct |
19 ms |
6496 KB |
Output is correct |
26 |
Correct |
12 ms |
6660 KB |
Output is correct |
27 |
Correct |
6 ms |
6644 KB |
Output is correct |
28 |
Correct |
3 ms |
6496 KB |
Output is correct |
29 |
Correct |
58 ms |
6804 KB |
Output is correct |
30 |
Correct |
34 ms |
6752 KB |
Output is correct |
31 |
Correct |
34 ms |
6496 KB |
Output is correct |
32 |
Correct |
19 ms |
6640 KB |
Output is correct |
33 |
Correct |
35 ms |
6648 KB |
Output is correct |
34 |
Correct |
20 ms |
6484 KB |
Output is correct |
35 |
Correct |
12 ms |
6640 KB |
Output is correct |
36 |
Correct |
6 ms |
6652 KB |
Output is correct |
37 |
Correct |
24 ms |
6484 KB |
Output is correct |
38 |
Correct |
18 ms |
6484 KB |
Output is correct |
39 |
Correct |
49 ms |
6820 KB |
Output is correct |
40 |
Correct |
22 ms |
6484 KB |
Output is correct |
41 |
Correct |
15 ms |
6484 KB |
Output is correct |
42 |
Correct |
20 ms |
6484 KB |
Output is correct |
43 |
Correct |
7 ms |
6484 KB |
Output is correct |
44 |
Correct |
40 ms |
6484 KB |
Output is correct |
45 |
Correct |
32 ms |
6484 KB |
Output is correct |
46 |
Correct |
21 ms |
6484 KB |
Output is correct |
47 |
Correct |
12 ms |
6564 KB |
Output is correct |
48 |
Correct |
44 ms |
6824 KB |
Output is correct |
49 |
Correct |
44 ms |
6756 KB |
Output is correct |
50 |
Correct |
45 ms |
6496 KB |
Output is correct |
51 |
Correct |
44 ms |
6484 KB |
Output is correct |
52 |
Correct |
36 ms |
6484 KB |
Output is correct |
53 |
Correct |
27 ms |
6700 KB |
Output is correct |
54 |
Correct |
40 ms |
6484 KB |
Output is correct |
55 |
Correct |
35 ms |
6484 KB |
Output is correct |
56 |
Correct |
4 ms |
6484 KB |
Output is correct |
57 |
Correct |
4 ms |
6624 KB |
Output is correct |
58 |
Correct |
22 ms |
6700 KB |
Output is correct |
59 |
Correct |
22 ms |
6676 KB |
Output is correct |
60 |
Correct |
3 ms |
6908 KB |
Output is correct |
61 |
Correct |
3 ms |
6484 KB |
Output is correct |
62 |
Correct |
3 ms |
6740 KB |
Output is correct |
63 |
Correct |
31 ms |
6644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6484 KB |
Output is correct |
2 |
Correct |
3 ms |
6564 KB |
Output is correct |
3 |
Correct |
4 ms |
6496 KB |
Output is correct |
4 |
Correct |
3 ms |
6496 KB |
Output is correct |
5 |
Correct |
3 ms |
6496 KB |
Output is correct |
6 |
Correct |
3 ms |
6496 KB |
Output is correct |
7 |
Correct |
2 ms |
6496 KB |
Output is correct |
8 |
Correct |
3 ms |
6496 KB |
Output is correct |
9 |
Correct |
3 ms |
6728 KB |
Output is correct |
10 |
Correct |
3 ms |
6524 KB |
Output is correct |
11 |
Correct |
4 ms |
6520 KB |
Output is correct |
12 |
Correct |
3 ms |
6552 KB |
Output is correct |
13 |
Correct |
2 ms |
6496 KB |
Output is correct |
14 |
Correct |
3 ms |
6648 KB |
Output is correct |
15 |
Correct |
3 ms |
6496 KB |
Output is correct |
16 |
Correct |
3 ms |
6496 KB |
Output is correct |
17 |
Correct |
3 ms |
6496 KB |
Output is correct |
18 |
Correct |
2 ms |
6496 KB |
Output is correct |
19 |
Correct |
2 ms |
6564 KB |
Output is correct |
20 |
Correct |
3 ms |
6496 KB |
Output is correct |
21 |
Correct |
3 ms |
6496 KB |
Output is correct |
22 |
Correct |
36 ms |
6640 KB |
Output is correct |
23 |
Correct |
33 ms |
6496 KB |
Output is correct |
24 |
Correct |
29 ms |
6576 KB |
Output is correct |
25 |
Correct |
19 ms |
6496 KB |
Output is correct |
26 |
Correct |
12 ms |
6660 KB |
Output is correct |
27 |
Correct |
6 ms |
6644 KB |
Output is correct |
28 |
Correct |
3 ms |
6496 KB |
Output is correct |
29 |
Correct |
58 ms |
6804 KB |
Output is correct |
30 |
Correct |
34 ms |
6752 KB |
Output is correct |
31 |
Correct |
34 ms |
6496 KB |
Output is correct |
32 |
Correct |
19 ms |
6640 KB |
Output is correct |
33 |
Correct |
35 ms |
6648 KB |
Output is correct |
34 |
Correct |
20 ms |
6484 KB |
Output is correct |
35 |
Correct |
12 ms |
6640 KB |
Output is correct |
36 |
Correct |
6 ms |
6652 KB |
Output is correct |
37 |
Correct |
24 ms |
6484 KB |
Output is correct |
38 |
Correct |
18 ms |
6484 KB |
Output is correct |
39 |
Correct |
49 ms |
6820 KB |
Output is correct |
40 |
Correct |
22 ms |
6484 KB |
Output is correct |
41 |
Correct |
15 ms |
6484 KB |
Output is correct |
42 |
Correct |
20 ms |
6484 KB |
Output is correct |
43 |
Correct |
7 ms |
6484 KB |
Output is correct |
44 |
Correct |
40 ms |
6484 KB |
Output is correct |
45 |
Correct |
32 ms |
6484 KB |
Output is correct |
46 |
Correct |
21 ms |
6484 KB |
Output is correct |
47 |
Correct |
12 ms |
6564 KB |
Output is correct |
48 |
Correct |
44 ms |
6824 KB |
Output is correct |
49 |
Correct |
44 ms |
6756 KB |
Output is correct |
50 |
Correct |
45 ms |
6496 KB |
Output is correct |
51 |
Correct |
44 ms |
6484 KB |
Output is correct |
52 |
Correct |
36 ms |
6484 KB |
Output is correct |
53 |
Correct |
27 ms |
6700 KB |
Output is correct |
54 |
Correct |
40 ms |
6484 KB |
Output is correct |
55 |
Correct |
35 ms |
6484 KB |
Output is correct |
56 |
Correct |
4 ms |
6484 KB |
Output is correct |
57 |
Correct |
4 ms |
6624 KB |
Output is correct |
58 |
Correct |
22 ms |
6700 KB |
Output is correct |
59 |
Correct |
22 ms |
6676 KB |
Output is correct |
60 |
Correct |
3 ms |
6908 KB |
Output is correct |
61 |
Correct |
3 ms |
6484 KB |
Output is correct |
62 |
Correct |
3 ms |
6740 KB |
Output is correct |
63 |
Correct |
31 ms |
6644 KB |
Output is correct |
64 |
Execution timed out |
1549 ms |
16016 KB |
Time limit exceeded |
65 |
Halted |
0 ms |
0 KB |
- |