#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=3e5;
const ll inf=1e18;
const ll mod=1e9+7;
ll ans=0;
vector<ll>g[maxN];
ll dp[maxN];
string s;
void dfs(ll u=1,ll p=0)
{
dp[u]=(s[u]=='1');
ll x=0;
for(int v:g[u])
{
if(v!=p)
{
dfs(v,u);
x+=dp[v];
//dp[u]=max(dp[u],dp[v]);
}
}
dp[u]=max(dp[u],x-(s[u]=='1'));
ans=max(ans,dp[u]);
for(int v:g[u])
{
if(v!=p)
{
ans=max(ans,dp[v]+(s[u]=='1'));
}
}
}
ll n;
void solve()
{
cin >> n;
for(int i=1;i<n;i++)
{
ll u,v;
cin >> u >> v ;
g[u].pb(v);
g[v].pb(u);
}
cin >> s;
s=' '+s;
dfs();
cout << ans;
}
int main()
{
fastio
//freopen(TASKNAME".INP","r",stdin);
//freopen(TASKNAME".OUT","w",stdout);
solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
7252 KB |
Output is correct |
2 |
Correct |
4 ms |
7252 KB |
Output is correct |
3 |
Correct |
4 ms |
7252 KB |
Output is correct |
4 |
Correct |
4 ms |
7372 KB |
Output is correct |
5 |
Correct |
4 ms |
7252 KB |
Output is correct |
6 |
Correct |
4 ms |
7252 KB |
Output is correct |
7 |
Correct |
4 ms |
7252 KB |
Output is correct |
8 |
Correct |
4 ms |
7252 KB |
Output is correct |
9 |
Correct |
4 ms |
7328 KB |
Output is correct |
10 |
Correct |
5 ms |
7252 KB |
Output is correct |
11 |
Correct |
4 ms |
7252 KB |
Output is correct |
12 |
Correct |
4 ms |
7252 KB |
Output is correct |
13 |
Correct |
4 ms |
7252 KB |
Output is correct |
14 |
Correct |
4 ms |
7252 KB |
Output is correct |
15 |
Correct |
4 ms |
7252 KB |
Output is correct |
16 |
Correct |
4 ms |
7252 KB |
Output is correct |
17 |
Correct |
4 ms |
7368 KB |
Output is correct |
18 |
Correct |
4 ms |
7252 KB |
Output is correct |
19 |
Correct |
4 ms |
7252 KB |
Output is correct |
20 |
Correct |
4 ms |
7252 KB |
Output is correct |
21 |
Correct |
4 ms |
7252 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
7252 KB |
Output is correct |
2 |
Correct |
4 ms |
7252 KB |
Output is correct |
3 |
Correct |
4 ms |
7252 KB |
Output is correct |
4 |
Correct |
4 ms |
7372 KB |
Output is correct |
5 |
Correct |
4 ms |
7252 KB |
Output is correct |
6 |
Correct |
4 ms |
7252 KB |
Output is correct |
7 |
Correct |
4 ms |
7252 KB |
Output is correct |
8 |
Correct |
4 ms |
7252 KB |
Output is correct |
9 |
Correct |
4 ms |
7328 KB |
Output is correct |
10 |
Correct |
5 ms |
7252 KB |
Output is correct |
11 |
Correct |
4 ms |
7252 KB |
Output is correct |
12 |
Correct |
4 ms |
7252 KB |
Output is correct |
13 |
Correct |
4 ms |
7252 KB |
Output is correct |
14 |
Correct |
4 ms |
7252 KB |
Output is correct |
15 |
Correct |
4 ms |
7252 KB |
Output is correct |
16 |
Correct |
4 ms |
7252 KB |
Output is correct |
17 |
Correct |
4 ms |
7368 KB |
Output is correct |
18 |
Correct |
4 ms |
7252 KB |
Output is correct |
19 |
Correct |
4 ms |
7252 KB |
Output is correct |
20 |
Correct |
4 ms |
7252 KB |
Output is correct |
21 |
Correct |
4 ms |
7252 KB |
Output is correct |
22 |
Correct |
4 ms |
7424 KB |
Output is correct |
23 |
Correct |
4 ms |
7380 KB |
Output is correct |
24 |
Correct |
5 ms |
7380 KB |
Output is correct |
25 |
Correct |
5 ms |
7380 KB |
Output is correct |
26 |
Correct |
5 ms |
7384 KB |
Output is correct |
27 |
Correct |
5 ms |
7380 KB |
Output is correct |
28 |
Correct |
6 ms |
7380 KB |
Output is correct |
29 |
Correct |
5 ms |
7508 KB |
Output is correct |
30 |
Correct |
5 ms |
7508 KB |
Output is correct |
31 |
Correct |
6 ms |
7380 KB |
Output is correct |
32 |
Correct |
5 ms |
7384 KB |
Output is correct |
33 |
Correct |
5 ms |
7380 KB |
Output is correct |
34 |
Correct |
5 ms |
7380 KB |
Output is correct |
35 |
Correct |
5 ms |
7380 KB |
Output is correct |
36 |
Correct |
4 ms |
7380 KB |
Output is correct |
37 |
Correct |
5 ms |
7380 KB |
Output is correct |
38 |
Correct |
5 ms |
7384 KB |
Output is correct |
39 |
Correct |
5 ms |
7508 KB |
Output is correct |
40 |
Correct |
5 ms |
7508 KB |
Output is correct |
41 |
Correct |
6 ms |
7508 KB |
Output is correct |
42 |
Correct |
5 ms |
7496 KB |
Output is correct |
43 |
Correct |
6 ms |
7380 KB |
Output is correct |
44 |
Correct |
6 ms |
7508 KB |
Output is correct |
45 |
Correct |
5 ms |
7508 KB |
Output is correct |
46 |
Correct |
5 ms |
7380 KB |
Output is correct |
47 |
Correct |
5 ms |
7464 KB |
Output is correct |
48 |
Correct |
4 ms |
7508 KB |
Output is correct |
49 |
Correct |
5 ms |
7508 KB |
Output is correct |
50 |
Correct |
4 ms |
7432 KB |
Output is correct |
51 |
Correct |
5 ms |
7508 KB |
Output is correct |
52 |
Correct |
4 ms |
7380 KB |
Output is correct |
53 |
Correct |
4 ms |
7508 KB |
Output is correct |
54 |
Correct |
4 ms |
7432 KB |
Output is correct |
55 |
Correct |
5 ms |
7384 KB |
Output is correct |
56 |
Correct |
6 ms |
7384 KB |
Output is correct |
57 |
Correct |
7 ms |
7516 KB |
Output is correct |
58 |
Correct |
5 ms |
7492 KB |
Output is correct |
59 |
Correct |
5 ms |
7436 KB |
Output is correct |
60 |
Correct |
7 ms |
7508 KB |
Output is correct |
61 |
Correct |
5 ms |
7388 KB |
Output is correct |
62 |
Correct |
5 ms |
7508 KB |
Output is correct |
63 |
Correct |
4 ms |
7380 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
7252 KB |
Output is correct |
2 |
Correct |
4 ms |
7252 KB |
Output is correct |
3 |
Correct |
4 ms |
7252 KB |
Output is correct |
4 |
Correct |
4 ms |
7372 KB |
Output is correct |
5 |
Correct |
4 ms |
7252 KB |
Output is correct |
6 |
Correct |
4 ms |
7252 KB |
Output is correct |
7 |
Correct |
4 ms |
7252 KB |
Output is correct |
8 |
Correct |
4 ms |
7252 KB |
Output is correct |
9 |
Correct |
4 ms |
7328 KB |
Output is correct |
10 |
Correct |
5 ms |
7252 KB |
Output is correct |
11 |
Correct |
4 ms |
7252 KB |
Output is correct |
12 |
Correct |
4 ms |
7252 KB |
Output is correct |
13 |
Correct |
4 ms |
7252 KB |
Output is correct |
14 |
Correct |
4 ms |
7252 KB |
Output is correct |
15 |
Correct |
4 ms |
7252 KB |
Output is correct |
16 |
Correct |
4 ms |
7252 KB |
Output is correct |
17 |
Correct |
4 ms |
7368 KB |
Output is correct |
18 |
Correct |
4 ms |
7252 KB |
Output is correct |
19 |
Correct |
4 ms |
7252 KB |
Output is correct |
20 |
Correct |
4 ms |
7252 KB |
Output is correct |
21 |
Correct |
4 ms |
7252 KB |
Output is correct |
22 |
Correct |
4 ms |
7424 KB |
Output is correct |
23 |
Correct |
4 ms |
7380 KB |
Output is correct |
24 |
Correct |
5 ms |
7380 KB |
Output is correct |
25 |
Correct |
5 ms |
7380 KB |
Output is correct |
26 |
Correct |
5 ms |
7384 KB |
Output is correct |
27 |
Correct |
5 ms |
7380 KB |
Output is correct |
28 |
Correct |
6 ms |
7380 KB |
Output is correct |
29 |
Correct |
5 ms |
7508 KB |
Output is correct |
30 |
Correct |
5 ms |
7508 KB |
Output is correct |
31 |
Correct |
6 ms |
7380 KB |
Output is correct |
32 |
Correct |
5 ms |
7384 KB |
Output is correct |
33 |
Correct |
5 ms |
7380 KB |
Output is correct |
34 |
Correct |
5 ms |
7380 KB |
Output is correct |
35 |
Correct |
5 ms |
7380 KB |
Output is correct |
36 |
Correct |
4 ms |
7380 KB |
Output is correct |
37 |
Correct |
5 ms |
7380 KB |
Output is correct |
38 |
Correct |
5 ms |
7384 KB |
Output is correct |
39 |
Correct |
5 ms |
7508 KB |
Output is correct |
40 |
Correct |
5 ms |
7508 KB |
Output is correct |
41 |
Correct |
6 ms |
7508 KB |
Output is correct |
42 |
Correct |
5 ms |
7496 KB |
Output is correct |
43 |
Correct |
6 ms |
7380 KB |
Output is correct |
44 |
Correct |
6 ms |
7508 KB |
Output is correct |
45 |
Correct |
5 ms |
7508 KB |
Output is correct |
46 |
Correct |
5 ms |
7380 KB |
Output is correct |
47 |
Correct |
5 ms |
7464 KB |
Output is correct |
48 |
Correct |
4 ms |
7508 KB |
Output is correct |
49 |
Correct |
5 ms |
7508 KB |
Output is correct |
50 |
Correct |
4 ms |
7432 KB |
Output is correct |
51 |
Correct |
5 ms |
7508 KB |
Output is correct |
52 |
Correct |
4 ms |
7380 KB |
Output is correct |
53 |
Correct |
4 ms |
7508 KB |
Output is correct |
54 |
Correct |
4 ms |
7432 KB |
Output is correct |
55 |
Correct |
5 ms |
7384 KB |
Output is correct |
56 |
Correct |
6 ms |
7384 KB |
Output is correct |
57 |
Correct |
7 ms |
7516 KB |
Output is correct |
58 |
Correct |
5 ms |
7492 KB |
Output is correct |
59 |
Correct |
5 ms |
7436 KB |
Output is correct |
60 |
Correct |
7 ms |
7508 KB |
Output is correct |
61 |
Correct |
5 ms |
7388 KB |
Output is correct |
62 |
Correct |
5 ms |
7508 KB |
Output is correct |
63 |
Correct |
4 ms |
7380 KB |
Output is correct |
64 |
Correct |
153 ms |
17260 KB |
Output is correct |
65 |
Correct |
173 ms |
17152 KB |
Output is correct |
66 |
Correct |
135 ms |
17256 KB |
Output is correct |
67 |
Correct |
133 ms |
17144 KB |
Output is correct |
68 |
Correct |
125 ms |
17136 KB |
Output is correct |
69 |
Correct |
162 ms |
17168 KB |
Output is correct |
70 |
Correct |
119 ms |
17196 KB |
Output is correct |
71 |
Correct |
141 ms |
17364 KB |
Output is correct |
72 |
Correct |
133 ms |
17200 KB |
Output is correct |
73 |
Correct |
163 ms |
28924 KB |
Output is correct |
74 |
Correct |
179 ms |
28912 KB |
Output is correct |
75 |
Correct |
132 ms |
18440 KB |
Output is correct |
76 |
Correct |
126 ms |
18464 KB |
Output is correct |
77 |
Correct |
161 ms |
17196 KB |
Output is correct |
78 |
Correct |
145 ms |
17168 KB |
Output is correct |
79 |
Correct |
145 ms |
17176 KB |
Output is correct |
80 |
Correct |
152 ms |
17344 KB |
Output is correct |
81 |
Correct |
113 ms |
17340 KB |
Output is correct |
82 |
Correct |
131 ms |
17104 KB |
Output is correct |
83 |
Correct |
157 ms |
22288 KB |
Output is correct |
84 |
Correct |
154 ms |
24400 KB |
Output is correct |
85 |
Correct |
148 ms |
24156 KB |
Output is correct |
86 |
Correct |
127 ms |
18572 KB |
Output is correct |
87 |
Correct |
138 ms |
17936 KB |
Output is correct |
88 |
Correct |
129 ms |
18076 KB |
Output is correct |
89 |
Correct |
137 ms |
18048 KB |
Output is correct |
90 |
Correct |
108 ms |
17908 KB |
Output is correct |
91 |
Correct |
142 ms |
18132 KB |
Output is correct |
92 |
Correct |
141 ms |
18452 KB |
Output is correct |
93 |
Correct |
120 ms |
20760 KB |
Output is correct |
94 |
Correct |
123 ms |
22456 KB |
Output is correct |
95 |
Correct |
127 ms |
20908 KB |
Output is correct |
96 |
Correct |
129 ms |
19160 KB |
Output is correct |
97 |
Correct |
133 ms |
17752 KB |
Output is correct |
98 |
Correct |
133 ms |
17412 KB |
Output is correct |
99 |
Correct |
127 ms |
17228 KB |
Output is correct |
100 |
Correct |
110 ms |
20240 KB |
Output is correct |
101 |
Correct |
139 ms |
18124 KB |
Output is correct |
102 |
Correct |
129 ms |
17516 KB |
Output is correct |
103 |
Correct |
147 ms |
17644 KB |
Output is correct |
104 |
Correct |
86 ms |
17768 KB |
Output is correct |
105 |
Correct |
152 ms |
25724 KB |
Output is correct |
106 |
Correct |
83 ms |
17888 KB |
Output is correct |
107 |
Correct |
75 ms |
17908 KB |
Output is correct |
108 |
Correct |
162 ms |
29520 KB |
Output is correct |
109 |
Correct |
79 ms |
17752 KB |
Output is correct |
110 |
Correct |
149 ms |
29908 KB |
Output is correct |
111 |
Correct |
115 ms |
17160 KB |
Output is correct |