#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define fi first
#define se second
#define ld long double
#define pb push_back
int N;
string c;
vector<int> v[200010];
pair<int,int> ans(int pos,int prec){
vector<pair<int,int> > k;
for(int x:v[pos]){
if(x==prec)continue;
k.pb(ans(x,pos));
}
pair<int,int> ma={0,0};//at most 1 in line,most 2 in line
if(c[pos]=='1'){
for(auto [a,b]:k){
ma.fi+=a;
ma.se=max({ma.se,a+1,b});
}
ma.fi--;
ma.fi=max(ma.fi,(int)1);
}else{
for(auto [a,b]:k){
ma.fi+=a;
ma.se=max(ma.se,b);
}
}
//cout<<pos<<" "<<ma.fi<<" "<<ma.se<<endl;
return ma;
}
signed main(){
ios::sync_with_stdio(false);cin.tie(0);
cin>>N;
for(int i=0;i<N-1;i++){
int a,b;
cin>>a>>b;
a--;b--;
v[a].pb(b);
v[b].pb(a);
}
cin>>c;
auto k=ans(0,-1);
cout<<max(k.fi,k.se)<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
4940 KB |
Output is correct |
2 |
Correct |
4 ms |
4940 KB |
Output is correct |
3 |
Correct |
4 ms |
4940 KB |
Output is correct |
4 |
Correct |
4 ms |
4940 KB |
Output is correct |
5 |
Correct |
4 ms |
4936 KB |
Output is correct |
6 |
Correct |
5 ms |
4940 KB |
Output is correct |
7 |
Correct |
4 ms |
4928 KB |
Output is correct |
8 |
Correct |
4 ms |
4940 KB |
Output is correct |
9 |
Correct |
4 ms |
5016 KB |
Output is correct |
10 |
Correct |
4 ms |
4940 KB |
Output is correct |
11 |
Correct |
4 ms |
4904 KB |
Output is correct |
12 |
Correct |
4 ms |
4940 KB |
Output is correct |
13 |
Correct |
4 ms |
4940 KB |
Output is correct |
14 |
Correct |
4 ms |
4940 KB |
Output is correct |
15 |
Correct |
4 ms |
4940 KB |
Output is correct |
16 |
Correct |
4 ms |
4940 KB |
Output is correct |
17 |
Correct |
4 ms |
4940 KB |
Output is correct |
18 |
Correct |
4 ms |
4940 KB |
Output is correct |
19 |
Correct |
4 ms |
4940 KB |
Output is correct |
20 |
Correct |
4 ms |
4940 KB |
Output is correct |
21 |
Correct |
5 ms |
4940 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
4940 KB |
Output is correct |
2 |
Correct |
4 ms |
4940 KB |
Output is correct |
3 |
Correct |
4 ms |
4940 KB |
Output is correct |
4 |
Correct |
4 ms |
4940 KB |
Output is correct |
5 |
Correct |
4 ms |
4936 KB |
Output is correct |
6 |
Correct |
5 ms |
4940 KB |
Output is correct |
7 |
Correct |
4 ms |
4928 KB |
Output is correct |
8 |
Correct |
4 ms |
4940 KB |
Output is correct |
9 |
Correct |
4 ms |
5016 KB |
Output is correct |
10 |
Correct |
4 ms |
4940 KB |
Output is correct |
11 |
Correct |
4 ms |
4904 KB |
Output is correct |
12 |
Correct |
4 ms |
4940 KB |
Output is correct |
13 |
Correct |
4 ms |
4940 KB |
Output is correct |
14 |
Correct |
4 ms |
4940 KB |
Output is correct |
15 |
Correct |
4 ms |
4940 KB |
Output is correct |
16 |
Correct |
4 ms |
4940 KB |
Output is correct |
17 |
Correct |
4 ms |
4940 KB |
Output is correct |
18 |
Correct |
4 ms |
4940 KB |
Output is correct |
19 |
Correct |
4 ms |
4940 KB |
Output is correct |
20 |
Correct |
4 ms |
4940 KB |
Output is correct |
21 |
Correct |
5 ms |
4940 KB |
Output is correct |
22 |
Correct |
5 ms |
5020 KB |
Output is correct |
23 |
Correct |
5 ms |
5068 KB |
Output is correct |
24 |
Correct |
5 ms |
5068 KB |
Output is correct |
25 |
Correct |
5 ms |
5028 KB |
Output is correct |
26 |
Correct |
5 ms |
5080 KB |
Output is correct |
27 |
Correct |
5 ms |
5068 KB |
Output is correct |
28 |
Correct |
5 ms |
5068 KB |
Output is correct |
29 |
Correct |
5 ms |
5196 KB |
Output is correct |
30 |
Correct |
5 ms |
5156 KB |
Output is correct |
31 |
Correct |
5 ms |
5068 KB |
Output is correct |
32 |
Correct |
6 ms |
5032 KB |
Output is correct |
33 |
Correct |
5 ms |
5068 KB |
Output is correct |
34 |
Correct |
6 ms |
5068 KB |
Output is correct |
35 |
Correct |
5 ms |
5068 KB |
Output is correct |
36 |
Correct |
5 ms |
5068 KB |
Output is correct |
37 |
Correct |
5 ms |
5068 KB |
Output is correct |
38 |
Correct |
5 ms |
5068 KB |
Output is correct |
39 |
Correct |
4 ms |
5068 KB |
Output is correct |
40 |
Correct |
5 ms |
5068 KB |
Output is correct |
41 |
Correct |
5 ms |
5068 KB |
Output is correct |
42 |
Correct |
5 ms |
5068 KB |
Output is correct |
43 |
Correct |
6 ms |
5068 KB |
Output is correct |
44 |
Correct |
5 ms |
5068 KB |
Output is correct |
45 |
Correct |
5 ms |
5028 KB |
Output is correct |
46 |
Correct |
5 ms |
5068 KB |
Output is correct |
47 |
Correct |
5 ms |
5068 KB |
Output is correct |
48 |
Correct |
5 ms |
5196 KB |
Output is correct |
49 |
Correct |
5 ms |
5156 KB |
Output is correct |
50 |
Correct |
5 ms |
5160 KB |
Output is correct |
51 |
Correct |
5 ms |
5068 KB |
Output is correct |
52 |
Correct |
5 ms |
5028 KB |
Output is correct |
53 |
Correct |
5 ms |
5160 KB |
Output is correct |
54 |
Correct |
5 ms |
5068 KB |
Output is correct |
55 |
Correct |
5 ms |
5068 KB |
Output is correct |
56 |
Correct |
4 ms |
5104 KB |
Output is correct |
57 |
Correct |
5 ms |
5196 KB |
Output is correct |
58 |
Correct |
5 ms |
5160 KB |
Output is correct |
59 |
Correct |
5 ms |
5132 KB |
Output is correct |
60 |
Correct |
6 ms |
5068 KB |
Output is correct |
61 |
Correct |
5 ms |
5160 KB |
Output is correct |
62 |
Correct |
6 ms |
5136 KB |
Output is correct |
63 |
Correct |
5 ms |
5068 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
4940 KB |
Output is correct |
2 |
Correct |
4 ms |
4940 KB |
Output is correct |
3 |
Correct |
4 ms |
4940 KB |
Output is correct |
4 |
Correct |
4 ms |
4940 KB |
Output is correct |
5 |
Correct |
4 ms |
4936 KB |
Output is correct |
6 |
Correct |
5 ms |
4940 KB |
Output is correct |
7 |
Correct |
4 ms |
4928 KB |
Output is correct |
8 |
Correct |
4 ms |
4940 KB |
Output is correct |
9 |
Correct |
4 ms |
5016 KB |
Output is correct |
10 |
Correct |
4 ms |
4940 KB |
Output is correct |
11 |
Correct |
4 ms |
4904 KB |
Output is correct |
12 |
Correct |
4 ms |
4940 KB |
Output is correct |
13 |
Correct |
4 ms |
4940 KB |
Output is correct |
14 |
Correct |
4 ms |
4940 KB |
Output is correct |
15 |
Correct |
4 ms |
4940 KB |
Output is correct |
16 |
Correct |
4 ms |
4940 KB |
Output is correct |
17 |
Correct |
4 ms |
4940 KB |
Output is correct |
18 |
Correct |
4 ms |
4940 KB |
Output is correct |
19 |
Correct |
4 ms |
4940 KB |
Output is correct |
20 |
Correct |
4 ms |
4940 KB |
Output is correct |
21 |
Correct |
5 ms |
4940 KB |
Output is correct |
22 |
Correct |
5 ms |
5020 KB |
Output is correct |
23 |
Correct |
5 ms |
5068 KB |
Output is correct |
24 |
Correct |
5 ms |
5068 KB |
Output is correct |
25 |
Correct |
5 ms |
5028 KB |
Output is correct |
26 |
Correct |
5 ms |
5080 KB |
Output is correct |
27 |
Correct |
5 ms |
5068 KB |
Output is correct |
28 |
Correct |
5 ms |
5068 KB |
Output is correct |
29 |
Correct |
5 ms |
5196 KB |
Output is correct |
30 |
Correct |
5 ms |
5156 KB |
Output is correct |
31 |
Correct |
5 ms |
5068 KB |
Output is correct |
32 |
Correct |
6 ms |
5032 KB |
Output is correct |
33 |
Correct |
5 ms |
5068 KB |
Output is correct |
34 |
Correct |
6 ms |
5068 KB |
Output is correct |
35 |
Correct |
5 ms |
5068 KB |
Output is correct |
36 |
Correct |
5 ms |
5068 KB |
Output is correct |
37 |
Correct |
5 ms |
5068 KB |
Output is correct |
38 |
Correct |
5 ms |
5068 KB |
Output is correct |
39 |
Correct |
4 ms |
5068 KB |
Output is correct |
40 |
Correct |
5 ms |
5068 KB |
Output is correct |
41 |
Correct |
5 ms |
5068 KB |
Output is correct |
42 |
Correct |
5 ms |
5068 KB |
Output is correct |
43 |
Correct |
6 ms |
5068 KB |
Output is correct |
44 |
Correct |
5 ms |
5068 KB |
Output is correct |
45 |
Correct |
5 ms |
5028 KB |
Output is correct |
46 |
Correct |
5 ms |
5068 KB |
Output is correct |
47 |
Correct |
5 ms |
5068 KB |
Output is correct |
48 |
Correct |
5 ms |
5196 KB |
Output is correct |
49 |
Correct |
5 ms |
5156 KB |
Output is correct |
50 |
Correct |
5 ms |
5160 KB |
Output is correct |
51 |
Correct |
5 ms |
5068 KB |
Output is correct |
52 |
Correct |
5 ms |
5028 KB |
Output is correct |
53 |
Correct |
5 ms |
5160 KB |
Output is correct |
54 |
Correct |
5 ms |
5068 KB |
Output is correct |
55 |
Correct |
5 ms |
5068 KB |
Output is correct |
56 |
Correct |
4 ms |
5104 KB |
Output is correct |
57 |
Correct |
5 ms |
5196 KB |
Output is correct |
58 |
Correct |
5 ms |
5160 KB |
Output is correct |
59 |
Correct |
5 ms |
5132 KB |
Output is correct |
60 |
Correct |
6 ms |
5068 KB |
Output is correct |
61 |
Correct |
5 ms |
5160 KB |
Output is correct |
62 |
Correct |
6 ms |
5136 KB |
Output is correct |
63 |
Correct |
5 ms |
5068 KB |
Output is correct |
64 |
Correct |
174 ms |
15420 KB |
Output is correct |
65 |
Correct |
191 ms |
15488 KB |
Output is correct |
66 |
Correct |
199 ms |
15520 KB |
Output is correct |
67 |
Correct |
179 ms |
15420 KB |
Output is correct |
68 |
Correct |
210 ms |
15524 KB |
Output is correct |
69 |
Correct |
183 ms |
15396 KB |
Output is correct |
70 |
Correct |
188 ms |
15432 KB |
Output is correct |
71 |
Correct |
235 ms |
15492 KB |
Output is correct |
72 |
Correct |
183 ms |
15472 KB |
Output is correct |
73 |
Correct |
204 ms |
29588 KB |
Output is correct |
74 |
Correct |
201 ms |
29512 KB |
Output is correct |
75 |
Correct |
178 ms |
16692 KB |
Output is correct |
76 |
Correct |
194 ms |
16740 KB |
Output is correct |
77 |
Correct |
184 ms |
15516 KB |
Output is correct |
78 |
Correct |
191 ms |
15464 KB |
Output is correct |
79 |
Correct |
184 ms |
15416 KB |
Output is correct |
80 |
Correct |
214 ms |
15500 KB |
Output is correct |
81 |
Correct |
174 ms |
18340 KB |
Output is correct |
82 |
Correct |
194 ms |
16268 KB |
Output is correct |
83 |
Correct |
200 ms |
21796 KB |
Output is correct |
84 |
Correct |
225 ms |
24628 KB |
Output is correct |
85 |
Correct |
208 ms |
24212 KB |
Output is correct |
86 |
Correct |
187 ms |
17068 KB |
Output is correct |
87 |
Correct |
224 ms |
16392 KB |
Output is correct |
88 |
Correct |
162 ms |
16400 KB |
Output is correct |
89 |
Correct |
182 ms |
16420 KB |
Output is correct |
90 |
Correct |
157 ms |
16108 KB |
Output is correct |
91 |
Correct |
171 ms |
16440 KB |
Output is correct |
92 |
Correct |
210 ms |
16848 KB |
Output is correct |
93 |
Correct |
164 ms |
21300 KB |
Output is correct |
94 |
Correct |
166 ms |
22420 KB |
Output is correct |
95 |
Correct |
160 ms |
20972 KB |
Output is correct |
96 |
Correct |
157 ms |
18300 KB |
Output is correct |
97 |
Correct |
158 ms |
16092 KB |
Output is correct |
98 |
Correct |
165 ms |
15596 KB |
Output is correct |
99 |
Correct |
227 ms |
15528 KB |
Output is correct |
100 |
Correct |
188 ms |
19644 KB |
Output is correct |
101 |
Correct |
168 ms |
16608 KB |
Output is correct |
102 |
Correct |
160 ms |
15668 KB |
Output is correct |
103 |
Correct |
175 ms |
15732 KB |
Output is correct |
104 |
Correct |
108 ms |
22112 KB |
Output is correct |
105 |
Correct |
202 ms |
25744 KB |
Output is correct |
106 |
Correct |
123 ms |
21796 KB |
Output is correct |
107 |
Correct |
119 ms |
21936 KB |
Output is correct |
108 |
Correct |
214 ms |
30488 KB |
Output is correct |
109 |
Correct |
117 ms |
22064 KB |
Output is correct |
110 |
Correct |
199 ms |
30848 KB |
Output is correct |
111 |
Correct |
201 ms |
15408 KB |
Output is correct |