Submission #444914

# Submission time Handle Problem Language Result Execution time Memory
444914 2021-07-15T20:45:02 Z dutch Power Plant (JOI20_power) C++17
100 / 100
193 ms 24228 KB
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 2e5;

int n, ans, dp[MAXN];
vector<int> g[MAXN];
string s;

void dfs(int u, int p){
	if(s[u] - '0') dp[u] = -1;
	for(int &v : g[u]){
		if(v == p) continue;
		dfs(v, u);
		if(s[u] - '0') ans = max(ans, 1 + dp[v]);
		dp[u] += dp[v];
	}
	dp[u] = max(dp[u], s[u] - '0');
	ans = max(ans, dp[u]);
}

signed main(){
	cin.tie(0)->sync_with_stdio(0);
	cin >> n;
	for(int i=1; i<n; ++i){
		int u, v; cin >> u >> v;
		--u, --v;
		g[u].push_back(v);
		g[v].push_back(u);
	}
	cin >> s;
	dfs(0, 0);
	cout << ans;
}
# Verdict Execution time Memory 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 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 5016 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4940 KB Output is correct
9 Correct 3 ms 5016 KB Output is correct
10 Correct 3 ms 5016 KB Output is correct
11 Correct 3 ms 5012 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 3 ms 4984 KB Output is correct
15 Correct 4 ms 5016 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 3 ms 4940 KB Output is correct
20 Correct 4 ms 5020 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct
# Verdict Execution time Memory 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 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 5016 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4940 KB Output is correct
9 Correct 3 ms 5016 KB Output is correct
10 Correct 3 ms 5016 KB Output is correct
11 Correct 3 ms 5012 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 3 ms 4984 KB Output is correct
15 Correct 4 ms 5016 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 3 ms 4940 KB Output is correct
20 Correct 4 ms 5020 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct
22 Correct 4 ms 5068 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 5 ms 5068 KB Output is correct
25 Correct 4 ms 5028 KB Output is correct
26 Correct 4 ms 5068 KB Output is correct
27 Correct 4 ms 5028 KB Output is correct
28 Correct 4 ms 5068 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 4 ms 5068 KB Output is correct
31 Correct 4 ms 5068 KB Output is correct
32 Correct 4 ms 5068 KB Output is correct
33 Correct 4 ms 5068 KB Output is correct
34 Correct 4 ms 5000 KB Output is correct
35 Correct 5 ms 5032 KB Output is correct
36 Correct 4 ms 5068 KB Output is correct
37 Correct 5 ms 5068 KB Output is correct
38 Correct 4 ms 5068 KB Output is correct
39 Correct 4 ms 5160 KB Output is correct
40 Correct 4 ms 5024 KB Output is correct
41 Correct 4 ms 5068 KB Output is correct
42 Correct 4 ms 5040 KB Output is correct
43 Correct 4 ms 5068 KB Output is correct
44 Correct 4 ms 5068 KB Output is correct
45 Correct 4 ms 5100 KB Output is correct
46 Correct 4 ms 5068 KB Output is correct
47 Correct 4 ms 5032 KB Output is correct
48 Correct 4 ms 5068 KB Output is correct
49 Correct 4 ms 5060 KB Output is correct
50 Correct 4 ms 5068 KB Output is correct
51 Correct 3 ms 5068 KB Output is correct
52 Correct 3 ms 5068 KB Output is correct
53 Correct 3 ms 5068 KB Output is correct
54 Correct 3 ms 5032 KB Output is correct
55 Correct 3 ms 5068 KB Output is correct
56 Correct 4 ms 5068 KB Output is correct
57 Correct 5 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 3 ms 5092 KB Output is correct
61 Correct 3 ms 5020 KB Output is correct
62 Correct 4 ms 5068 KB Output is correct
63 Correct 4 ms 5024 KB Output is correct
# Verdict Execution time Memory 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 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 5016 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4940 KB Output is correct
9 Correct 3 ms 5016 KB Output is correct
10 Correct 3 ms 5016 KB Output is correct
11 Correct 3 ms 5012 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 3 ms 4984 KB Output is correct
15 Correct 4 ms 5016 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 3 ms 4940 KB Output is correct
20 Correct 4 ms 5020 KB Output is correct
21 Correct 3 ms 4940 KB Output is correct
22 Correct 4 ms 5068 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 5 ms 5068 KB Output is correct
25 Correct 4 ms 5028 KB Output is correct
26 Correct 4 ms 5068 KB Output is correct
27 Correct 4 ms 5028 KB Output is correct
28 Correct 4 ms 5068 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 4 ms 5068 KB Output is correct
31 Correct 4 ms 5068 KB Output is correct
32 Correct 4 ms 5068 KB Output is correct
33 Correct 4 ms 5068 KB Output is correct
34 Correct 4 ms 5000 KB Output is correct
35 Correct 5 ms 5032 KB Output is correct
36 Correct 4 ms 5068 KB Output is correct
37 Correct 5 ms 5068 KB Output is correct
38 Correct 4 ms 5068 KB Output is correct
39 Correct 4 ms 5160 KB Output is correct
40 Correct 4 ms 5024 KB Output is correct
41 Correct 4 ms 5068 KB Output is correct
42 Correct 4 ms 5040 KB Output is correct
43 Correct 4 ms 5068 KB Output is correct
44 Correct 4 ms 5068 KB Output is correct
45 Correct 4 ms 5100 KB Output is correct
46 Correct 4 ms 5068 KB Output is correct
47 Correct 4 ms 5032 KB Output is correct
48 Correct 4 ms 5068 KB Output is correct
49 Correct 4 ms 5060 KB Output is correct
50 Correct 4 ms 5068 KB Output is correct
51 Correct 3 ms 5068 KB Output is correct
52 Correct 3 ms 5068 KB Output is correct
53 Correct 3 ms 5068 KB Output is correct
54 Correct 3 ms 5032 KB Output is correct
55 Correct 3 ms 5068 KB Output is correct
56 Correct 4 ms 5068 KB Output is correct
57 Correct 5 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 3 ms 5092 KB Output is correct
61 Correct 3 ms 5020 KB Output is correct
62 Correct 4 ms 5068 KB Output is correct
63 Correct 4 ms 5024 KB Output is correct
64 Correct 145 ms 12992 KB Output is correct
65 Correct 136 ms 12940 KB Output is correct
66 Correct 138 ms 12956 KB Output is correct
67 Correct 134 ms 12956 KB Output is correct
68 Correct 164 ms 12936 KB Output is correct
69 Correct 157 ms 12904 KB Output is correct
70 Correct 151 ms 12864 KB Output is correct
71 Correct 138 ms 12892 KB Output is correct
72 Correct 149 ms 13104 KB Output is correct
73 Correct 177 ms 22936 KB Output is correct
74 Correct 139 ms 23060 KB Output is correct
75 Correct 164 ms 12788 KB Output is correct
76 Correct 155 ms 12812 KB Output is correct
77 Correct 159 ms 12804 KB Output is correct
78 Correct 155 ms 12796 KB Output is correct
79 Correct 140 ms 12820 KB Output is correct
80 Correct 131 ms 12876 KB Output is correct
81 Correct 129 ms 13260 KB Output is correct
82 Correct 129 ms 13052 KB Output is correct
83 Correct 166 ms 16940 KB Output is correct
84 Correct 151 ms 18664 KB Output is correct
85 Correct 144 ms 18440 KB Output is correct
86 Correct 167 ms 14084 KB Output is correct
87 Correct 157 ms 13596 KB Output is correct
88 Correct 136 ms 13992 KB Output is correct
89 Correct 149 ms 14008 KB Output is correct
90 Correct 175 ms 13900 KB Output is correct
91 Correct 154 ms 14128 KB Output is correct
92 Correct 193 ms 14576 KB Output is correct
93 Correct 136 ms 16448 KB Output is correct
94 Correct 182 ms 17928 KB Output is correct
95 Correct 138 ms 16788 KB Output is correct
96 Correct 152 ms 15332 KB Output is correct
97 Correct 176 ms 14168 KB Output is correct
98 Correct 143 ms 13760 KB Output is correct
99 Correct 163 ms 13652 KB Output is correct
100 Correct 151 ms 16080 KB Output is correct
101 Correct 170 ms 14468 KB Output is correct
102 Correct 153 ms 13868 KB Output is correct
103 Correct 192 ms 13684 KB Output is correct
104 Correct 116 ms 13916 KB Output is correct
105 Correct 185 ms 20756 KB Output is correct
106 Correct 112 ms 13988 KB Output is correct
107 Correct 107 ms 14008 KB Output is correct
108 Correct 171 ms 23904 KB Output is correct
109 Correct 92 ms 13968 KB Output is correct
110 Correct 176 ms 24228 KB Output is correct
111 Correct 147 ms 13088 KB Output is correct