답안 #418767

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
418767	2021-06-05T20:43:24 Z	MohamedAhmed04	Power Plant (JOI20_power)	C++14	100 / 100	236 ms	29252 KB

power

#include <bits/stdc++.h>

using namespace std ;

const int MAX = 2e5 + 10 ;

int n ;
int mark[MAX] ;
vector< vector<int> >adj(MAX) ;

int ans = 0 ;
int dp[MAX] ;

void dfs(int node , int par)
{
	int cnt = 0 ;
	for(auto &child : adj[node])
	{
		if(child == par)
			continue ;
		dfs(child , node) ;
		cnt += dp[child] ;
		if(mark[node])
			ans = max(ans , dp[child] + 1) ;
	}
	if(mark[node])
		dp[node] = max(1 , cnt - 1) ;
	else
		dp[node] = cnt ;
	ans = max(ans , dp[node]) ;
}

int main()
{
	ios_base::sync_with_stdio(0) ;
	cin.tie(0) ;
	cin>>n ;
	for(int i = 0 ; i < n-1 ; ++i)
	{
		int x , y ;
		cin>>x>>y ;
		adj[x].push_back(y) ;
		adj[y].push_back(x) ;
	}
	for(int i = 1 ; i <= n ; ++i)
	{
		char c ;
		cin>>c ;
		mark[i] = (c - '0') ;
	}
	dfs(1 , -1) ;
	return cout<<ans<<"\n" , 0 ;
}

Subtask #1
6.0 / 6.0

#	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	4 ms	4940 KB	Output is correct
4	Correct	3 ms	4904 KB	Output is correct
5	Correct	3 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 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	4940 KB	Output is correct
10	Correct	3 ms	4940 KB	Output is correct
11	Correct	4 ms	4940 KB	Output is correct
12	Correct	3 ms	4940 KB	Output is correct
13	Correct	4 ms	4940 KB	Output is correct
14	Correct	4 ms	4940 KB	Output is correct
15	Correct	4 ms	4940 KB	Output is correct
16	Correct	4 ms	4940 KB	Output is correct
17	Correct	4 ms	4940 KB	Output is correct
18	Correct	4 ms	4940 KB	Output is correct
19	Correct	4 ms	4940 KB	Output is correct
20	Correct	4 ms	4940 KB	Output is correct
21	Correct	4 ms	4940 KB	Output is correct

Subtask #2
41.0 / 41.0

#	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	4 ms	4940 KB	Output is correct
4	Correct	3 ms	4904 KB	Output is correct
5	Correct	3 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 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	4940 KB	Output is correct
10	Correct	3 ms	4940 KB	Output is correct
11	Correct	4 ms	4940 KB	Output is correct
12	Correct	3 ms	4940 KB	Output is correct
13	Correct	4 ms	4940 KB	Output is correct
14	Correct	4 ms	4940 KB	Output is correct
15	Correct	4 ms	4940 KB	Output is correct
16	Correct	4 ms	4940 KB	Output is correct
17	Correct	4 ms	4940 KB	Output is correct
18	Correct	4 ms	4940 KB	Output is correct
19	Correct	4 ms	4940 KB	Output is correct
20	Correct	4 ms	4940 KB	Output is correct
21	Correct	4 ms	4940 KB	Output is correct
22	Correct	4 ms	5068 KB	Output is correct
23	Correct	5 ms	5040 KB	Output is correct
24	Correct	4 ms	5052 KB	Output is correct
25	Correct	5 ms	5084 KB	Output is correct
26	Correct	4 ms	5068 KB	Output is correct
27	Correct	4 ms	5068 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	6 ms	5196 KB	Output is correct
30	Correct	5 ms	5196 KB	Output is correct
31	Correct	4 ms	5092 KB	Output is correct
32	Correct	4 ms	5068 KB	Output is correct
33	Correct	4 ms	5104 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	4 ms	5068 KB	Output is correct
36	Correct	4 ms	5068 KB	Output is correct
37	Correct	4 ms	5068 KB	Output is correct
38	Correct	4 ms	5068 KB	Output is correct
39	Correct	4 ms	5172 KB	Output is correct
40	Correct	4 ms	5068 KB	Output is correct
41	Correct	4 ms	5068 KB	Output is correct
42	Correct	4 ms	5048 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	5044 KB	Output is correct
46	Correct	4 ms	5068 KB	Output is correct
47	Correct	4 ms	5068 KB	Output is correct
48	Correct	4 ms	5196 KB	Output is correct
49	Correct	4 ms	5196 KB	Output is correct
50	Correct	4 ms	5068 KB	Output is correct
51	Correct	4 ms	5044 KB	Output is correct
52	Correct	4 ms	5068 KB	Output is correct
53	Correct	4 ms	5048 KB	Output is correct
54	Correct	4 ms	5068 KB	Output is correct
55	Correct	4 ms	5088 KB	Output is correct
56	Correct	4 ms	5068 KB	Output is correct
57	Correct	4 ms	5196 KB	Output is correct
58	Correct	4 ms	5068 KB	Output is correct
59	Correct	4 ms	5068 KB	Output is correct
60	Correct	4 ms	5196 KB	Output is correct
61	Correct	4 ms	5044 KB	Output is correct
62	Correct	4 ms	5196 KB	Output is correct
63	Correct	4 ms	5068 KB	Output is correct

Subtask #3
53.0 / 53.0

#	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	4 ms	4940 KB	Output is correct
4	Correct	3 ms	4904 KB	Output is correct
5	Correct	3 ms	4940 KB	Output is correct
6	Correct	3 ms	4940 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	4940 KB	Output is correct
10	Correct	3 ms	4940 KB	Output is correct
11	Correct	4 ms	4940 KB	Output is correct
12	Correct	3 ms	4940 KB	Output is correct
13	Correct	4 ms	4940 KB	Output is correct
14	Correct	4 ms	4940 KB	Output is correct
15	Correct	4 ms	4940 KB	Output is correct
16	Correct	4 ms	4940 KB	Output is correct
17	Correct	4 ms	4940 KB	Output is correct
18	Correct	4 ms	4940 KB	Output is correct
19	Correct	4 ms	4940 KB	Output is correct
20	Correct	4 ms	4940 KB	Output is correct
21	Correct	4 ms	4940 KB	Output is correct
22	Correct	4 ms	5068 KB	Output is correct
23	Correct	5 ms	5040 KB	Output is correct
24	Correct	4 ms	5052 KB	Output is correct
25	Correct	5 ms	5084 KB	Output is correct
26	Correct	4 ms	5068 KB	Output is correct
27	Correct	4 ms	5068 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	6 ms	5196 KB	Output is correct
30	Correct	5 ms	5196 KB	Output is correct
31	Correct	4 ms	5092 KB	Output is correct
32	Correct	4 ms	5068 KB	Output is correct
33	Correct	4 ms	5104 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	4 ms	5068 KB	Output is correct
36	Correct	4 ms	5068 KB	Output is correct
37	Correct	4 ms	5068 KB	Output is correct
38	Correct	4 ms	5068 KB	Output is correct
39	Correct	4 ms	5172 KB	Output is correct
40	Correct	4 ms	5068 KB	Output is correct
41	Correct	4 ms	5068 KB	Output is correct
42	Correct	4 ms	5048 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	5044 KB	Output is correct
46	Correct	4 ms	5068 KB	Output is correct
47	Correct	4 ms	5068 KB	Output is correct
48	Correct	4 ms	5196 KB	Output is correct
49	Correct	4 ms	5196 KB	Output is correct
50	Correct	4 ms	5068 KB	Output is correct
51	Correct	4 ms	5044 KB	Output is correct
52	Correct	4 ms	5068 KB	Output is correct
53	Correct	4 ms	5048 KB	Output is correct
54	Correct	4 ms	5068 KB	Output is correct
55	Correct	4 ms	5088 KB	Output is correct
56	Correct	4 ms	5068 KB	Output is correct
57	Correct	4 ms	5196 KB	Output is correct
58	Correct	4 ms	5068 KB	Output is correct
59	Correct	4 ms	5068 KB	Output is correct
60	Correct	4 ms	5196 KB	Output is correct
61	Correct	4 ms	5044 KB	Output is correct
62	Correct	4 ms	5196 KB	Output is correct
63	Correct	4 ms	5068 KB	Output is correct
64	Correct	176 ms	15628 KB	Output is correct
65	Correct	158 ms	15568 KB	Output is correct
66	Correct	145 ms	15596 KB	Output is correct
67	Correct	151 ms	15740 KB	Output is correct
68	Correct	143 ms	15556 KB	Output is correct
69	Correct	153 ms	15532 KB	Output is correct
70	Correct	139 ms	15556 KB	Output is correct
71	Correct	143 ms	15580 KB	Output is correct
72	Correct	140 ms	15660 KB	Output is correct
73	Correct	168 ms	28228 KB	Output is correct
74	Correct	152 ms	28100 KB	Output is correct
75	Correct	165 ms	15668 KB	Output is correct
76	Correct	135 ms	15428 KB	Output is correct
77	Correct	141 ms	15444 KB	Output is correct
78	Correct	197 ms	15496 KB	Output is correct
79	Correct	199 ms	15468 KB	Output is correct
80	Correct	199 ms	15520 KB	Output is correct
81	Correct	159 ms	15800 KB	Output is correct
82	Correct	153 ms	15660 KB	Output is correct
83	Correct	154 ms	20676 KB	Output is correct
84	Correct	195 ms	22884 KB	Output is correct
85	Correct	176 ms	22516 KB	Output is correct
86	Correct	192 ms	16876 KB	Output is correct
87	Correct	187 ms	16324 KB	Output is correct
88	Correct	206 ms	16808 KB	Output is correct
89	Correct	154 ms	16820 KB	Output is correct
90	Correct	172 ms	16596 KB	Output is correct
91	Correct	207 ms	16836 KB	Output is correct
92	Correct	207 ms	17200 KB	Output is correct
93	Correct	199 ms	19480 KB	Output is correct
94	Correct	208 ms	21180 KB	Output is correct
95	Correct	188 ms	20032 KB	Output is correct
96	Correct	184 ms	18236 KB	Output is correct
97	Correct	147 ms	16608 KB	Output is correct
98	Correct	143 ms	16192 KB	Output is correct
99	Correct	172 ms	16000 KB	Output is correct
100	Correct	151 ms	19140 KB	Output is correct
101	Correct	189 ms	17048 KB	Output is correct
102	Correct	150 ms	16472 KB	Output is correct
103	Correct	154 ms	16176 KB	Output is correct
104	Correct	95 ms	16408 KB	Output is correct
105	Correct	201 ms	25072 KB	Output is correct
106	Correct	91 ms	16184 KB	Output is correct
107	Correct	98 ms	16168 KB	Output is correct
108	Correct	193 ms	28944 KB	Output is correct
109	Correct	116 ms	16452 KB	Output is correct
110	Correct	236 ms	29252 KB	Output is correct
111	Correct	147 ms	15428 KB	Output is correct

답안 #418767

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