#include<bits/stdc++.h>
using namespace std;
#define pb push_back
const int N=5e5;int n,dp[N][2],is[N];vector<int> G[N];void dfs(int v,int p=-1) {int sum0=0,sum1=0,mx1=0,mx0=0;for(int u:G[v]) if(u!=p) {dfs(u,v);sum0+=dp[u][0];sum1+=dp[u][1];mx1=max(mx1,dp[u][1]);mx0=max(mx0,dp[u][0]);}dp[v][0]=(is[v]?max({mx0,sum1-1,1+mx1}):max({mx0,sum1}));dp[v][1]=(is[v]?max({1,sum1-1}):sum1);}int main(){cin>>n;for(int i=1; i<n ; i++) {int v,u;cin>>v>>u;G[v].pb(u);G[u].pb(v);}for(int i=1;i<=n;i++) {char c; cin>>c;is[i]=(c=='1');}dfs(1);cout<<dp[1][0]<<'\n';}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 2 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 3 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 4 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 5 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 6 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 7 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 8 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 9 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 10 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 11 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 12 |
Correct |
5 ms |
14968 KB |
Output is correct |
| 13 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 14 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 15 |
Correct |
6 ms |
14936 KB |
Output is correct |
| 16 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 17 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 18 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 20 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
14956 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 2 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 3 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 4 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 5 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 6 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 7 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 8 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 9 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 10 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 11 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 12 |
Correct |
5 ms |
14968 KB |
Output is correct |
| 13 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 14 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 15 |
Correct |
6 ms |
14936 KB |
Output is correct |
| 16 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 17 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 18 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 20 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
14956 KB |
Output is correct |
| 22 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 23 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 24 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 25 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 26 |
Correct |
7 ms |
14936 KB |
Output is correct |
| 27 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 28 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 29 |
Correct |
6 ms |
15196 KB |
Output is correct |
| 30 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 31 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 32 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 33 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 34 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 35 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 36 |
Correct |
5 ms |
15052 KB |
Output is correct |
| 37 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 38 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 39 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 40 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 41 |
Correct |
5 ms |
15044 KB |
Output is correct |
| 42 |
Correct |
7 ms |
15196 KB |
Output is correct |
| 43 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 44 |
Correct |
5 ms |
15060 KB |
Output is correct |
| 45 |
Correct |
5 ms |
15192 KB |
Output is correct |
| 46 |
Correct |
5 ms |
14968 KB |
Output is correct |
| 47 |
Correct |
6 ms |
14936 KB |
Output is correct |
| 48 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 49 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 50 |
Correct |
5 ms |
14960 KB |
Output is correct |
| 51 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 52 |
Correct |
5 ms |
14968 KB |
Output is correct |
| 53 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 54 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 55 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 56 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 57 |
Correct |
6 ms |
15196 KB |
Output is correct |
| 58 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 59 |
Correct |
5 ms |
15004 KB |
Output is correct |
| 60 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 61 |
Correct |
5 ms |
14996 KB |
Output is correct |
| 62 |
Correct |
6 ms |
14992 KB |
Output is correct |
| 63 |
Correct |
5 ms |
14940 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 2 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 3 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 4 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 5 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 6 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 7 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 8 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 9 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 10 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 11 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 12 |
Correct |
5 ms |
14968 KB |
Output is correct |
| 13 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 14 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 15 |
Correct |
6 ms |
14936 KB |
Output is correct |
| 16 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 17 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 18 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
14936 KB |
Output is correct |
| 20 |
Correct |
4 ms |
14940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
14956 KB |
Output is correct |
| 22 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 23 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 24 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 25 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 26 |
Correct |
7 ms |
14936 KB |
Output is correct |
| 27 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 28 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 29 |
Correct |
6 ms |
15196 KB |
Output is correct |
| 30 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 31 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 32 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 33 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 34 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 35 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 36 |
Correct |
5 ms |
15052 KB |
Output is correct |
| 37 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 38 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 39 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 40 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 41 |
Correct |
5 ms |
15044 KB |
Output is correct |
| 42 |
Correct |
7 ms |
15196 KB |
Output is correct |
| 43 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 44 |
Correct |
5 ms |
15060 KB |
Output is correct |
| 45 |
Correct |
5 ms |
15192 KB |
Output is correct |
| 46 |
Correct |
5 ms |
14968 KB |
Output is correct |
| 47 |
Correct |
6 ms |
14936 KB |
Output is correct |
| 48 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 49 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 50 |
Correct |
5 ms |
14960 KB |
Output is correct |
| 51 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 52 |
Correct |
5 ms |
14968 KB |
Output is correct |
| 53 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 54 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 55 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 56 |
Correct |
5 ms |
14936 KB |
Output is correct |
| 57 |
Correct |
6 ms |
15196 KB |
Output is correct |
| 58 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 59 |
Correct |
5 ms |
15004 KB |
Output is correct |
| 60 |
Correct |
6 ms |
14940 KB |
Output is correct |
| 61 |
Correct |
5 ms |
14996 KB |
Output is correct |
| 62 |
Correct |
6 ms |
14992 KB |
Output is correct |
| 63 |
Correct |
5 ms |
14940 KB |
Output is correct |
| 64 |
Correct |
169 ms |
23228 KB |
Output is correct |
| 65 |
Correct |
161 ms |
23224 KB |
Output is correct |
| 66 |
Correct |
174 ms |
23384 KB |
Output is correct |
| 67 |
Correct |
171 ms |
23364 KB |
Output is correct |
| 68 |
Correct |
175 ms |
23392 KB |
Output is correct |
| 69 |
Correct |
149 ms |
23376 KB |
Output is correct |
| 70 |
Correct |
172 ms |
23376 KB |
Output is correct |
| 71 |
Correct |
166 ms |
23368 KB |
Output is correct |
| 72 |
Correct |
146 ms |
23240 KB |
Output is correct |
| 73 |
Correct |
187 ms |
38488 KB |
Output is correct |
| 74 |
Correct |
202 ms |
38460 KB |
Output is correct |
| 75 |
Correct |
163 ms |
23124 KB |
Output is correct |
| 76 |
Correct |
155 ms |
23116 KB |
Output is correct |
| 77 |
Correct |
199 ms |
23376 KB |
Output is correct |
| 78 |
Correct |
180 ms |
23124 KB |
Output is correct |
| 79 |
Correct |
185 ms |
23124 KB |
Output is correct |
| 80 |
Correct |
149 ms |
23276 KB |
Output is correct |
| 81 |
Correct |
157 ms |
23496 KB |
Output is correct |
| 82 |
Correct |
151 ms |
23388 KB |
Output is correct |
| 83 |
Correct |
188 ms |
29392 KB |
Output is correct |
| 84 |
Correct |
198 ms |
32160 KB |
Output is correct |
| 85 |
Correct |
165 ms |
31568 KB |
Output is correct |
| 86 |
Correct |
164 ms |
24828 KB |
Output is correct |
| 87 |
Correct |
204 ms |
24160 KB |
Output is correct |
| 88 |
Correct |
151 ms |
24656 KB |
Output is correct |
| 89 |
Correct |
193 ms |
24768 KB |
Output is correct |
| 90 |
Correct |
176 ms |
24376 KB |
Output is correct |
| 91 |
Correct |
153 ms |
24660 KB |
Output is correct |
| 92 |
Correct |
154 ms |
25076 KB |
Output is correct |
| 93 |
Correct |
168 ms |
28108 KB |
Output is correct |
| 94 |
Correct |
204 ms |
30048 KB |
Output is correct |
| 95 |
Correct |
202 ms |
28364 KB |
Output is correct |
| 96 |
Correct |
158 ms |
26340 KB |
Output is correct |
| 97 |
Correct |
171 ms |
24584 KB |
Output is correct |
| 98 |
Correct |
155 ms |
23776 KB |
Output is correct |
| 99 |
Correct |
145 ms |
23512 KB |
Output is correct |
| 100 |
Correct |
184 ms |
27628 KB |
Output is correct |
| 101 |
Correct |
167 ms |
25140 KB |
Output is correct |
| 102 |
Correct |
190 ms |
24032 KB |
Output is correct |
| 103 |
Correct |
186 ms |
24232 KB |
Output is correct |
| 104 |
Correct |
133 ms |
23888 KB |
Output is correct |
| 105 |
Correct |
199 ms |
34644 KB |
Output is correct |
| 106 |
Correct |
128 ms |
23864 KB |
Output is correct |
| 107 |
Correct |
144 ms |
24096 KB |
Output is correct |
| 108 |
Correct |
186 ms |
39408 KB |
Output is correct |
| 109 |
Correct |
132 ms |
24008 KB |
Output is correct |
| 110 |
Correct |
193 ms |
39796 KB |
Output is correct |
| 111 |
Correct |
159 ms |
23124 KB |
Output is correct |
