#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
vector<vi> G;
string x;
int dfs(int u,int p){
int ans=0;
for(auto &v:G[u]){
if(v!=p){
ans+=dfs(v,u);
}
}
int mi=0;
if(x[u]=='1') mi=1;
return max(ans-mi,mi);
}
int main(){
int n;
cin>>n;
G.resize(n+1);
for(int i=0;i<n-1;i++){
int a,b; cin>>a>>b;
a--; b--;
G[a].push_back(b);
G[b].push_back(a);
}
cin>>x;
int c=0;
for(int i=0;i<x.size();i++){
if(x[i]=='1') c++;
}
int ans=min(c,2);
for(int i=0;i<n;i++){
int rp=dfs(i,-1);
ans=max(ans,rp);
}
cout<<ans<<endl;
}
Compilation message
power.cpp: In function 'int main()':
power.cpp:30:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
30 | for(int i=0;i<x.size();i++){
| ~^~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
288 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
292 KB |
Output is correct |
13 |
Correct |
1 ms |
288 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
272 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
288 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
292 KB |
Output is correct |
13 |
Correct |
1 ms |
288 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
272 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
67 ms |
332 KB |
Output is correct |
23 |
Correct |
67 ms |
332 KB |
Output is correct |
24 |
Correct |
70 ms |
332 KB |
Output is correct |
25 |
Correct |
70 ms |
332 KB |
Output is correct |
26 |
Correct |
67 ms |
408 KB |
Output is correct |
27 |
Correct |
66 ms |
400 KB |
Output is correct |
28 |
Correct |
66 ms |
332 KB |
Output is correct |
29 |
Correct |
87 ms |
524 KB |
Output is correct |
30 |
Correct |
86 ms |
460 KB |
Output is correct |
31 |
Correct |
59 ms |
404 KB |
Output is correct |
32 |
Correct |
60 ms |
332 KB |
Output is correct |
33 |
Correct |
65 ms |
400 KB |
Output is correct |
34 |
Correct |
68 ms |
332 KB |
Output is correct |
35 |
Correct |
70 ms |
404 KB |
Output is correct |
36 |
Correct |
70 ms |
332 KB |
Output is correct |
37 |
Correct |
56 ms |
332 KB |
Output is correct |
38 |
Correct |
63 ms |
300 KB |
Output is correct |
39 |
Correct |
73 ms |
460 KB |
Output is correct |
40 |
Correct |
77 ms |
460 KB |
Output is correct |
41 |
Correct |
81 ms |
460 KB |
Output is correct |
42 |
Correct |
71 ms |
332 KB |
Output is correct |
43 |
Correct |
72 ms |
432 KB |
Output is correct |
44 |
Correct |
75 ms |
332 KB |
Output is correct |
45 |
Correct |
61 ms |
332 KB |
Output is correct |
46 |
Correct |
60 ms |
436 KB |
Output is correct |
47 |
Correct |
60 ms |
432 KB |
Output is correct |
48 |
Correct |
54 ms |
468 KB |
Output is correct |
49 |
Correct |
57 ms |
460 KB |
Output is correct |
50 |
Correct |
56 ms |
460 KB |
Output is correct |
51 |
Correct |
67 ms |
332 KB |
Output is correct |
52 |
Correct |
64 ms |
412 KB |
Output is correct |
53 |
Correct |
58 ms |
460 KB |
Output is correct |
54 |
Correct |
57 ms |
332 KB |
Output is correct |
55 |
Correct |
65 ms |
332 KB |
Output is correct |
56 |
Correct |
28 ms |
332 KB |
Output is correct |
57 |
Correct |
86 ms |
520 KB |
Output is correct |
58 |
Correct |
28 ms |
412 KB |
Output is correct |
59 |
Correct |
27 ms |
332 KB |
Output is correct |
60 |
Correct |
85 ms |
580 KB |
Output is correct |
61 |
Correct |
28 ms |
332 KB |
Output is correct |
62 |
Correct |
85 ms |
524 KB |
Output is correct |
63 |
Correct |
50 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
288 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
292 KB |
Output is correct |
13 |
Correct |
1 ms |
288 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
1 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
272 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
67 ms |
332 KB |
Output is correct |
23 |
Correct |
67 ms |
332 KB |
Output is correct |
24 |
Correct |
70 ms |
332 KB |
Output is correct |
25 |
Correct |
70 ms |
332 KB |
Output is correct |
26 |
Correct |
67 ms |
408 KB |
Output is correct |
27 |
Correct |
66 ms |
400 KB |
Output is correct |
28 |
Correct |
66 ms |
332 KB |
Output is correct |
29 |
Correct |
87 ms |
524 KB |
Output is correct |
30 |
Correct |
86 ms |
460 KB |
Output is correct |
31 |
Correct |
59 ms |
404 KB |
Output is correct |
32 |
Correct |
60 ms |
332 KB |
Output is correct |
33 |
Correct |
65 ms |
400 KB |
Output is correct |
34 |
Correct |
68 ms |
332 KB |
Output is correct |
35 |
Correct |
70 ms |
404 KB |
Output is correct |
36 |
Correct |
70 ms |
332 KB |
Output is correct |
37 |
Correct |
56 ms |
332 KB |
Output is correct |
38 |
Correct |
63 ms |
300 KB |
Output is correct |
39 |
Correct |
73 ms |
460 KB |
Output is correct |
40 |
Correct |
77 ms |
460 KB |
Output is correct |
41 |
Correct |
81 ms |
460 KB |
Output is correct |
42 |
Correct |
71 ms |
332 KB |
Output is correct |
43 |
Correct |
72 ms |
432 KB |
Output is correct |
44 |
Correct |
75 ms |
332 KB |
Output is correct |
45 |
Correct |
61 ms |
332 KB |
Output is correct |
46 |
Correct |
60 ms |
436 KB |
Output is correct |
47 |
Correct |
60 ms |
432 KB |
Output is correct |
48 |
Correct |
54 ms |
468 KB |
Output is correct |
49 |
Correct |
57 ms |
460 KB |
Output is correct |
50 |
Correct |
56 ms |
460 KB |
Output is correct |
51 |
Correct |
67 ms |
332 KB |
Output is correct |
52 |
Correct |
64 ms |
412 KB |
Output is correct |
53 |
Correct |
58 ms |
460 KB |
Output is correct |
54 |
Correct |
57 ms |
332 KB |
Output is correct |
55 |
Correct |
65 ms |
332 KB |
Output is correct |
56 |
Correct |
28 ms |
332 KB |
Output is correct |
57 |
Correct |
86 ms |
520 KB |
Output is correct |
58 |
Correct |
28 ms |
412 KB |
Output is correct |
59 |
Correct |
27 ms |
332 KB |
Output is correct |
60 |
Correct |
85 ms |
580 KB |
Output is correct |
61 |
Correct |
28 ms |
332 KB |
Output is correct |
62 |
Correct |
85 ms |
524 KB |
Output is correct |
63 |
Correct |
50 ms |
332 KB |
Output is correct |
64 |
Execution timed out |
1604 ms |
14432 KB |
Time limit exceeded |
65 |
Halted |
0 ms |
0 KB |
- |