답안 #293488

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
293488	2020-09-08T06:42:25 Z	nandonathaniel	Power Plant (JOI20_power)	C++14	100 / 100	203 ms	25976 KB

power

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

답안 #293488

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 53.0 / 53.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
53.0 / 53.0