#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair<int,int> pii;
typedef vector<long long> vl;
typedef vector<int> vi;
bool generator[200100];
vi G[200100];
int dp[200100][2], n, ans = 0;
void dfs(int at, int p){
dp[at][0] = dp[at][1] = 0;
int all = 0, max1 = 0, max0 = 0;
for(auto next : G[at]){
if(next == p) continue;
dfs(next, at);
all += dp[next][0];
max1 = max(max1, dp[next][1]);
max0 = max(max0, dp[next][0]);
}
if(generator[at]){
dp[at][0] = max(1, all - 1);
dp[at][1] = max0 + 1;
}
else{
dp[at][0] = all;
dp[at][1] = max1;
}
ans = max(ans, dp[at][0]);
ans = max(ans, dp[at][1]);
}
int main(){
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);
}
for(int i = 0; i < n; i++){
char a;
cin>>a;
if(a == '1') generator[i] = true;
else generator[i] = false;
}
dfs(0, -1);
cout<<ans<<endl;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 9 |
Correct |
3 ms |
5008 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 15 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 19 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 20 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4948 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 9 |
Correct |
3 ms |
5008 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 15 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 19 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 20 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 22 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 23 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 24 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 25 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5072 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 29 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5204 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5020 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5092 KB |
Output is correct |
| 37 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 41 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 43 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 44 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 45 |
Correct |
5 ms |
5148 KB |
Output is correct |
| 46 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 47 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 48 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5156 KB |
Output is correct |
| 50 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 51 |
Correct |
4 ms |
5148 KB |
Output is correct |
| 52 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 53 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 54 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 55 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 56 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 57 |
Correct |
6 ms |
5276 KB |
Output is correct |
| 58 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 59 |
Correct |
4 ms |
5064 KB |
Output is correct |
| 60 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 61 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5204 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5076 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 9 |
Correct |
3 ms |
5008 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 15 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 19 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 20 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 21 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 22 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 23 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 24 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 25 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 26 |
Correct |
4 ms |
5072 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 29 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5204 KB |
Output is correct |
| 31 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5020 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 36 |
Correct |
4 ms |
5092 KB |
Output is correct |
| 37 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 41 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 43 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 44 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 45 |
Correct |
5 ms |
5148 KB |
Output is correct |
| 46 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 47 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 48 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 49 |
Correct |
4 ms |
5156 KB |
Output is correct |
| 50 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 51 |
Correct |
4 ms |
5148 KB |
Output is correct |
| 52 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 53 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 54 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 55 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 56 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 57 |
Correct |
6 ms |
5276 KB |
Output is correct |
| 58 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 59 |
Correct |
4 ms |
5064 KB |
Output is correct |
| 60 |
Correct |
4 ms |
5152 KB |
Output is correct |
| 61 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 62 |
Correct |
4 ms |
5204 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 64 |
Correct |
212 ms |
15844 KB |
Output is correct |
| 65 |
Correct |
220 ms |
15884 KB |
Output is correct |
| 66 |
Correct |
223 ms |
16076 KB |
Output is correct |
| 67 |
Correct |
202 ms |
15768 KB |
Output is correct |
| 68 |
Correct |
203 ms |
15820 KB |
Output is correct |
| 69 |
Correct |
217 ms |
15816 KB |
Output is correct |
| 70 |
Correct |
206 ms |
15820 KB |
Output is correct |
| 71 |
Correct |
225 ms |
15840 KB |
Output is correct |
| 72 |
Correct |
201 ms |
15800 KB |
Output is correct |
| 73 |
Correct |
221 ms |
30952 KB |
Output is correct |
| 74 |
Correct |
244 ms |
30916 KB |
Output is correct |
| 75 |
Correct |
213 ms |
15724 KB |
Output is correct |
| 76 |
Correct |
214 ms |
15628 KB |
Output is correct |
| 77 |
Correct |
211 ms |
15728 KB |
Output is correct |
| 78 |
Correct |
214 ms |
15640 KB |
Output is correct |
| 79 |
Correct |
216 ms |
15696 KB |
Output is correct |
| 80 |
Correct |
243 ms |
15720 KB |
Output is correct |
| 81 |
Correct |
186 ms |
16088 KB |
Output is correct |
| 82 |
Correct |
200 ms |
15892 KB |
Output is correct |
| 83 |
Correct |
212 ms |
21968 KB |
Output is correct |
| 84 |
Correct |
209 ms |
24476 KB |
Output is correct |
| 85 |
Correct |
225 ms |
24080 KB |
Output is correct |
| 86 |
Correct |
234 ms |
17392 KB |
Output is correct |
| 87 |
Correct |
219 ms |
16784 KB |
Output is correct |
| 88 |
Correct |
190 ms |
17160 KB |
Output is correct |
| 89 |
Correct |
205 ms |
17124 KB |
Output is correct |
| 90 |
Correct |
245 ms |
16916 KB |
Output is correct |
| 91 |
Correct |
199 ms |
17124 KB |
Output is correct |
| 92 |
Correct |
200 ms |
17576 KB |
Output is correct |
| 93 |
Correct |
198 ms |
20424 KB |
Output is correct |
| 94 |
Correct |
190 ms |
22572 KB |
Output is correct |
| 95 |
Correct |
203 ms |
21008 KB |
Output is correct |
| 96 |
Correct |
204 ms |
18824 KB |
Output is correct |
| 97 |
Correct |
198 ms |
16916 KB |
Output is correct |
| 98 |
Correct |
188 ms |
16416 KB |
Output is correct |
| 99 |
Correct |
211 ms |
16108 KB |
Output is correct |
| 100 |
Correct |
209 ms |
19972 KB |
Output is correct |
| 101 |
Correct |
210 ms |
17664 KB |
Output is correct |
| 102 |
Correct |
189 ms |
16588 KB |
Output is correct |
| 103 |
Correct |
195 ms |
16424 KB |
Output is correct |
| 104 |
Correct |
154 ms |
16568 KB |
Output is correct |
| 105 |
Correct |
223 ms |
27072 KB |
Output is correct |
| 106 |
Correct |
155 ms |
16404 KB |
Output is correct |
| 107 |
Correct |
154 ms |
16444 KB |
Output is correct |
| 108 |
Correct |
233 ms |
31840 KB |
Output is correct |
| 109 |
Correct |
164 ms |
16544 KB |
Output is correct |
| 110 |
Correct |
224 ms |
32204 KB |
Output is correct |
| 111 |
Correct |
199 ms |
15720 KB |
Output is correct |
