// I may fail a thousand times
// But there is no giving up
// IOI - here I come
#include <bits/stdc++.h>
#define pb push_back
#define int long long
using namespace std;
int ans;
string s;
int dp[(int)2e5+5];
vector<int> g[(int)2e5+5];
int dfs(int v,int p){
for(int u:g[v]){
if(u==p)continue;
dp[v]+=dfs(u,v);
ans=max(ans,dp[u]+(s[v-1]=='1'));
}
dp[v]-=s[v-1]=='1';
dp[v]=max(dp[v],(int)(s[v-1]=='1'));
ans=max(ans,dp[v]);
return dp[v];
}
signed main(){
ios_base::sync_with_stdio(0);cin.tie(0);
int n;cin>>n;
for(int i=1,u,v;i<n;i++)cin>>u>>v,g[u].pb(v),g[v].pb(u);
cin>>s;
dfs(1,1);
cout<<ans<<'\n';
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 7 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5028 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 11 |
Correct |
3 ms |
5000 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
2 ms |
5020 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
5000 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 7 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5028 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 11 |
Correct |
3 ms |
5000 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
2 ms |
5020 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
5000 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5032 KB |
Output is correct |
| 23 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 24 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 26 |
Correct |
3 ms |
5028 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5084 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5032 KB |
Output is correct |
| 29 |
Correct |
3 ms |
5196 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5196 KB |
Output is correct |
| 31 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5072 KB |
Output is correct |
| 33 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 36 |
Correct |
3 ms |
5060 KB |
Output is correct |
| 37 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 38 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 39 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 40 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 41 |
Correct |
4 ms |
5084 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5024 KB |
Output is correct |
| 43 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 44 |
Correct |
3 ms |
5160 KB |
Output is correct |
| 45 |
Correct |
3 ms |
5160 KB |
Output is correct |
| 46 |
Correct |
3 ms |
5064 KB |
Output is correct |
| 47 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 48 |
Correct |
4 ms |
5164 KB |
Output is correct |
| 49 |
Correct |
3 ms |
5072 KB |
Output is correct |
| 50 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 51 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 52 |
Correct |
3 ms |
5080 KB |
Output is correct |
| 53 |
Correct |
3 ms |
5156 KB |
Output is correct |
| 54 |
Correct |
4 ms |
5160 KB |
Output is correct |
| 55 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 56 |
Correct |
3 ms |
5028 KB |
Output is correct |
| 57 |
Correct |
4 ms |
5196 KB |
Output is correct |
| 58 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 59 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 60 |
Correct |
4 ms |
5164 KB |
Output is correct |
| 61 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 62 |
Correct |
3 ms |
5152 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5068 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 7 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
3 ms |
5028 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 11 |
Correct |
3 ms |
5000 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
2 ms |
5020 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4940 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
5000 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5032 KB |
Output is correct |
| 23 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 24 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 26 |
Correct |
3 ms |
5028 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5084 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5032 KB |
Output is correct |
| 29 |
Correct |
3 ms |
5196 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5196 KB |
Output is correct |
| 31 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 32 |
Correct |
4 ms |
5072 KB |
Output is correct |
| 33 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5028 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 36 |
Correct |
3 ms |
5060 KB |
Output is correct |
| 37 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 38 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 39 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 40 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 41 |
Correct |
4 ms |
5084 KB |
Output is correct |
| 42 |
Correct |
4 ms |
5024 KB |
Output is correct |
| 43 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 44 |
Correct |
3 ms |
5160 KB |
Output is correct |
| 45 |
Correct |
3 ms |
5160 KB |
Output is correct |
| 46 |
Correct |
3 ms |
5064 KB |
Output is correct |
| 47 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 48 |
Correct |
4 ms |
5164 KB |
Output is correct |
| 49 |
Correct |
3 ms |
5072 KB |
Output is correct |
| 50 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 51 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 52 |
Correct |
3 ms |
5080 KB |
Output is correct |
| 53 |
Correct |
3 ms |
5156 KB |
Output is correct |
| 54 |
Correct |
4 ms |
5160 KB |
Output is correct |
| 55 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 56 |
Correct |
3 ms |
5028 KB |
Output is correct |
| 57 |
Correct |
4 ms |
5196 KB |
Output is correct |
| 58 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 59 |
Correct |
3 ms |
5068 KB |
Output is correct |
| 60 |
Correct |
4 ms |
5164 KB |
Output is correct |
| 61 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 62 |
Correct |
3 ms |
5152 KB |
Output is correct |
| 63 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 64 |
Correct |
123 ms |
16824 KB |
Output is correct |
| 65 |
Correct |
119 ms |
16868 KB |
Output is correct |
| 66 |
Correct |
130 ms |
16884 KB |
Output is correct |
| 67 |
Correct |
110 ms |
16904 KB |
Output is correct |
| 68 |
Correct |
128 ms |
16848 KB |
Output is correct |
| 69 |
Correct |
123 ms |
16876 KB |
Output is correct |
| 70 |
Correct |
127 ms |
16948 KB |
Output is correct |
| 71 |
Correct |
119 ms |
16872 KB |
Output is correct |
| 72 |
Correct |
122 ms |
16952 KB |
Output is correct |
| 73 |
Correct |
140 ms |
28548 KB |
Output is correct |
| 74 |
Correct |
122 ms |
28508 KB |
Output is correct |
| 75 |
Correct |
114 ms |
18112 KB |
Output is correct |
| 76 |
Correct |
125 ms |
18124 KB |
Output is correct |
| 77 |
Correct |
130 ms |
16904 KB |
Output is correct |
| 78 |
Correct |
125 ms |
16932 KB |
Output is correct |
| 79 |
Correct |
114 ms |
16940 KB |
Output is correct |
| 80 |
Correct |
128 ms |
16852 KB |
Output is correct |
| 81 |
Correct |
123 ms |
17004 KB |
Output is correct |
| 82 |
Correct |
100 ms |
16956 KB |
Output is correct |
| 83 |
Correct |
155 ms |
22000 KB |
Output is correct |
| 84 |
Correct |
122 ms |
24076 KB |
Output is correct |
| 85 |
Correct |
121 ms |
23824 KB |
Output is correct |
| 86 |
Correct |
143 ms |
18308 KB |
Output is correct |
| 87 |
Correct |
123 ms |
17660 KB |
Output is correct |
| 88 |
Correct |
117 ms |
17820 KB |
Output is correct |
| 89 |
Correct |
119 ms |
17756 KB |
Output is correct |
| 90 |
Correct |
143 ms |
17580 KB |
Output is correct |
| 91 |
Correct |
108 ms |
17768 KB |
Output is correct |
| 92 |
Correct |
116 ms |
18184 KB |
Output is correct |
| 93 |
Correct |
105 ms |
20372 KB |
Output is correct |
| 94 |
Correct |
107 ms |
22084 KB |
Output is correct |
| 95 |
Correct |
109 ms |
20828 KB |
Output is correct |
| 96 |
Correct |
112 ms |
18988 KB |
Output is correct |
| 97 |
Correct |
112 ms |
17428 KB |
Output is correct |
| 98 |
Correct |
142 ms |
17204 KB |
Output is correct |
| 99 |
Correct |
111 ms |
17080 KB |
Output is correct |
| 100 |
Correct |
103 ms |
19952 KB |
Output is correct |
| 101 |
Correct |
110 ms |
17812 KB |
Output is correct |
| 102 |
Correct |
107 ms |
17368 KB |
Output is correct |
| 103 |
Correct |
113 ms |
17188 KB |
Output is correct |
| 104 |
Correct |
75 ms |
17588 KB |
Output is correct |
| 105 |
Correct |
127 ms |
25404 KB |
Output is correct |
| 106 |
Correct |
78 ms |
17440 KB |
Output is correct |
| 107 |
Correct |
80 ms |
17384 KB |
Output is correct |
| 108 |
Correct |
121 ms |
29332 KB |
Output is correct |
| 109 |
Correct |
69 ms |
17580 KB |
Output is correct |
| 110 |
Correct |
139 ms |
29696 KB |
Output is correct |
| 111 |
Correct |
108 ms |
16812 KB |
Output is correct |
