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Submission #293488

# Submission time Handle Problem Language Result Execution time Memory
293488 2020-09-08T06:42:25 Z nandonathaniel Power Plant (JOI20_power) C++14
100 / 100
 203 ms 25976 KB 
#include<bits/stdc++.h>
using namespace std;
const int MAXN=200005;

vector<int> adj[MAXN];
int lampu[MAXN],dp[MAXN],ans;

void dfs(int now,int par){
	int maxi=0;
	bool leaf=true;
	for(auto nxt : adj[now]){
		if(nxt==par)continue;
		leaf=false;
		dfs(nxt,now);
		dp[now]+=dp[nxt];
		maxi=max(maxi,dp[nxt]);
	}
	if(lampu[now]){
		dp[now]--;
		dp[now]=max(dp[now],1);
		if(!leaf)ans=max(ans,maxi+1);
	}
	ans=max(ans,dp[now]);
}

int main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int n,u,v;
	char a;
	cin >> n;
	for(int i=1;i<n;i++){
		cin >> u >> v;
		adj[u].push_back(v);
		adj[v].push_back(u);
	}
	for(int i=1;i<=n;i++){
		cin >> a;
		if(a=='1')lampu[i]=1;
	}
	dfs(1,-1);
	cout << ans << '\n';
	return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 5120 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 3 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 5 ms 5120 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 5120 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 3 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 5 ms 5120 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 5120 KB Output is correct
23 Correct 4 ms 5120 KB Output is correct
24 Correct 5 ms 5120 KB Output is correct
25 Correct 4 ms 5120 KB Output is correct
26 Correct 4 ms 5120 KB Output is correct
27 Correct 4 ms 5120 KB Output is correct
28 Correct 4 ms 5120 KB Output is correct
29 Correct 4 ms 5248 KB Output is correct
30 Correct 4 ms 5248 KB Output is correct
31 Correct 5 ms 5120 KB Output is correct
32 Correct 4 ms 5120 KB Output is correct
33 Correct 4 ms 5120 KB Output is correct
34 Correct 5 ms 5120 KB Output is correct
35 Correct 4 ms 5120 KB Output is correct
36 Correct 4 ms 5120 KB Output is correct
37 Correct 4 ms 5120 KB Output is correct
38 Correct 4 ms 5120 KB Output is correct
39 Correct 4 ms 5120 KB Output is correct
40 Correct 4 ms 5120 KB Output is correct
41 Correct 4 ms 5120 KB Output is correct
42 Correct 4 ms 5120 KB Output is correct
43 Correct 4 ms 5120 KB Output is correct
44 Correct 5 ms 5152 KB Output is correct
45 Correct 4 ms 5120 KB Output is correct
46 Correct 4 ms 5120 KB Output is correct
47 Correct 4 ms 5120 KB Output is correct
48 Correct 4 ms 5248 KB Output is correct
49 Correct 5 ms 5376 KB Output is correct
50 Correct 5 ms 5120 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 4 ms 5120 KB Output is correct
53 Correct 4 ms 5120 KB Output is correct
54 Correct 4 ms 5248 KB Output is correct
55 Correct 5 ms 5120 KB Output is correct
56 Correct 4 ms 5120 KB Output is correct
57 Correct 5 ms 5248 KB Output is correct
58 Correct 4 ms 5120 KB Output is correct
59 Correct 4 ms 5120 KB Output is correct
60 Correct 4 ms 5120 KB Output is correct
61 Correct 4 ms 5120 KB Output is correct
62 Correct 4 ms 5248 KB Output is correct
63 Correct 4 ms 5120 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 5120 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 3 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 5 ms 5120 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 5120 KB Output is correct
23 Correct 4 ms 5120 KB Output is correct
24 Correct 5 ms 5120 KB Output is correct
25 Correct 4 ms 5120 KB Output is correct
26 Correct 4 ms 5120 KB Output is correct
27 Correct 4 ms 5120 KB Output is correct
28 Correct 4 ms 5120 KB Output is correct
29 Correct 4 ms 5248 KB Output is correct
30 Correct 4 ms 5248 KB Output is correct
31 Correct 5 ms 5120 KB Output is correct
32 Correct 4 ms 5120 KB Output is correct
33 Correct 4 ms 5120 KB Output is correct
34 Correct 5 ms 5120 KB Output is correct
35 Correct 4 ms 5120 KB Output is correct
36 Correct 4 ms 5120 KB Output is correct
37 Correct 4 ms 5120 KB Output is correct
38 Correct 4 ms 5120 KB Output is correct
39 Correct 4 ms 5120 KB Output is correct
40 Correct 4 ms 5120 KB Output is correct
41 Correct 4 ms 5120 KB Output is correct
42 Correct 4 ms 5120 KB Output is correct
43 Correct 4 ms 5120 KB Output is correct
44 Correct 5 ms 5152 KB Output is correct
45 Correct 4 ms 5120 KB Output is correct
46 Correct 4 ms 5120 KB Output is correct
47 Correct 4 ms 5120 KB Output is correct
48 Correct 4 ms 5248 KB Output is correct
49 Correct 5 ms 5376 KB Output is correct
50 Correct 5 ms 5120 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 4 ms 5120 KB Output is correct
53 Correct 4 ms 5120 KB Output is correct
54 Correct 4 ms 5248 KB Output is correct
55 Correct 5 ms 5120 KB Output is correct
56 Correct 4 ms 5120 KB Output is correct
57 Correct 5 ms 5248 KB Output is correct
58 Correct 4 ms 5120 KB Output is correct
59 Correct 4 ms 5120 KB Output is correct
60 Correct 4 ms 5120 KB Output is correct
61 Correct 4 ms 5120 KB Output is correct
62 Correct 4 ms 5248 KB Output is correct
63 Correct 4 ms 5120 KB Output is correct
64 Correct 176 ms 13060 KB Output is correct
65 Correct 167 ms 12920 KB Output is correct
66 Correct 177 ms 12920 KB Output is correct
67 Correct 166 ms 13048 KB Output is correct
68 Correct 175 ms 13048 KB Output is correct
69 Correct 180 ms 12920 KB Output is correct
70 Correct 165 ms 12920 KB Output is correct
71 Correct 165 ms 12920 KB Output is correct
72 Correct 166 ms 12280 KB Output is correct
73 Correct 193 ms 25592 KB Output is correct
74 Correct 194 ms 25464 KB Output is correct
75 Correct 168 ms 12792 KB Output is correct
76 Correct 171 ms 12868 KB Output is correct
77 Correct 178 ms 12964 KB Output is correct
78 Correct 182 ms 12792 KB Output is correct
79 Correct 179 ms 12792 KB Output is correct
80 Correct 181 ms 12920 KB Output is correct
81 Correct 138 ms 13300 KB Output is correct
82 Correct 158 ms 13044 KB Output is correct
83 Correct 186 ms 18040 KB Output is correct
84 Correct 181 ms 20192 KB Output is correct
85 Correct 189 ms 19832 KB Output is correct
86 Correct 173 ms 14328 KB Output is correct
87 Correct 168 ms 13680 KB Output is correct
88 Correct 168 ms 14200 KB Output is correct
89 Correct 160 ms 14200 KB Output is correct
90 Correct 161 ms 14072 KB Output is correct
91 Correct 163 ms 14200 KB Output is correct
92 Correct 171 ms 14712 KB Output is correct
93 Correct 163 ms 17140 KB Output is correct
94 Correct 155 ms 18672 KB Output is correct
95 Correct 148 ms 17396 KB Output is correct
96 Correct 158 ms 15480 KB Output is correct
97 Correct 154 ms 14072 KB Output is correct
98 Correct 167 ms 13584 KB Output is correct
99 Correct 166 ms 13304 KB Output is correct
100 Correct 160 ms 16452 KB Output is correct
101 Correct 160 ms 14456 KB Output is correct
102 Correct 156 ms 13816 KB Output is correct
103 Correct 169 ms 13560 KB Output is correct
104 Correct 99 ms 12264 KB Output is correct
105 Correct 197 ms 21752 KB Output is correct
106 Correct 98 ms 13676 KB Output is correct
107 Correct 102 ms 13676 KB Output is correct
108 Correct 189 ms 25592 KB Output is correct
109 Correct 98 ms 12140 KB Output is correct
110 Correct 203 ms 25976 KB Output is correct
111 Correct 167 ms 12920 KB Output is correct