답안 #422413

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
422413	2021-06-10T05:59:08 Z	Jasiekstrz	Power Plant (JOI20_power)	C++17	100 / 100	188 ms	27360 KB

power

#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=2e5;
vector<int> e[N+10];
int dp[N+10][2];
int t[N+10];
void dfs(int x,int p)
{
	for(auto v:e[x])
	{
		if(v!=p)
			dfs(v,x);
	}
	int s1=0;
	for(auto v:e[x])
	{
		if(v!=p)
			s1+=dp[v][1];
	}
	// dp[0]
	dp[x][0]=t[x];
	for(auto v:e[x])
	{
		if(v!=p)
			dp[x][0]=max({dp[x][0],dp[v][0],dp[v][1]+t[x]});
	}
	dp[x][0]=max(dp[x][0],s1-t[x]);
	// dp[1]
	dp[x][1]=t[x];
	for(auto v:e[x])
	{
		if(v!=p)
			dp[x][1]=max(dp[x][1],dp[v][1]-t[x]);
	}
	dp[x][1]=max(dp[x][1],s1-t[x]);
	return;
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n;
	cin>>n;
	for(int i=1;i<n;i++)
	{
		int a,b;
		cin>>a>>b;
		e[a].push_back(b);
		e[b].push_back(a);
	}
	for(int i=1;i<=n;i++)
	{
		char c;
		cin>>c;
		t[i]=c-'0';
	}
	dfs(1,0);
	cout<<dp[1][0]<<"\n";
	return 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	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	5016 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	4 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	5012 KB	Output is correct
11	Correct	3 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	3 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	5020 KB	Output is correct
19	Correct	3 ms	4940 KB	Output is correct
20	Correct	3 ms	5020 KB	Output is correct
21	Correct	3 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	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	5016 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	4 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	5012 KB	Output is correct
11	Correct	3 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	3 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	5020 KB	Output is correct
19	Correct	3 ms	4940 KB	Output is correct
20	Correct	3 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	4 ms	5068 KB	Output is correct
25	Correct	4 ms	5068 KB	Output is correct
26	Correct	4 ms	5024 KB	Output is correct
27	Correct	5 ms	5068 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	5 ms	5224 KB	Output is correct
30	Correct	4 ms	5196 KB	Output is correct
31	Correct	4 ms	5028 KB	Output is correct
32	Correct	4 ms	5024 KB	Output is correct
33	Correct	4 ms	5032 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	5 ms	5028 KB	Output is correct
36	Correct	4 ms	5100 KB	Output is correct
37	Correct	4 ms	5024 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	5060 KB	Output is correct
41	Correct	4 ms	5196 KB	Output is correct
42	Correct	4 ms	5148 KB	Output is correct
43	Correct	4 ms	5032 KB	Output is correct
44	Correct	5 ms	5156 KB	Output is correct
45	Correct	5 ms	5076 KB	Output is correct
46	Correct	4 ms	5152 KB	Output is correct
47	Correct	4 ms	5068 KB	Output is correct
48	Correct	4 ms	5068 KB	Output is correct
49	Correct	4 ms	5068 KB	Output is correct
50	Correct	4 ms	5156 KB	Output is correct
51	Correct	4 ms	5160 KB	Output is correct
52	Correct	4 ms	5068 KB	Output is correct
53	Correct	4 ms	5068 KB	Output is correct
54	Correct	4 ms	5068 KB	Output is correct
55	Correct	4 ms	5068 KB	Output is correct
56	Correct	4 ms	5024 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	5068 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	3 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	5016 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	4 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	5012 KB	Output is correct
11	Correct	3 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	3 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	5020 KB	Output is correct
19	Correct	3 ms	4940 KB	Output is correct
20	Correct	3 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	4 ms	5068 KB	Output is correct
25	Correct	4 ms	5068 KB	Output is correct
26	Correct	4 ms	5024 KB	Output is correct
27	Correct	5 ms	5068 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	5 ms	5224 KB	Output is correct
30	Correct	4 ms	5196 KB	Output is correct
31	Correct	4 ms	5028 KB	Output is correct
32	Correct	4 ms	5024 KB	Output is correct
33	Correct	4 ms	5032 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	5 ms	5028 KB	Output is correct
36	Correct	4 ms	5100 KB	Output is correct
37	Correct	4 ms	5024 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	5060 KB	Output is correct
41	Correct	4 ms	5196 KB	Output is correct
42	Correct	4 ms	5148 KB	Output is correct
43	Correct	4 ms	5032 KB	Output is correct
44	Correct	5 ms	5156 KB	Output is correct
45	Correct	5 ms	5076 KB	Output is correct
46	Correct	4 ms	5152 KB	Output is correct
47	Correct	4 ms	5068 KB	Output is correct
48	Correct	4 ms	5068 KB	Output is correct
49	Correct	4 ms	5068 KB	Output is correct
50	Correct	4 ms	5156 KB	Output is correct
51	Correct	4 ms	5160 KB	Output is correct
52	Correct	4 ms	5068 KB	Output is correct
53	Correct	4 ms	5068 KB	Output is correct
54	Correct	4 ms	5068 KB	Output is correct
55	Correct	4 ms	5068 KB	Output is correct
56	Correct	4 ms	5024 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	5068 KB	Output is correct
62	Correct	4 ms	5196 KB	Output is correct
63	Correct	4 ms	5068 KB	Output is correct
64	Correct	152 ms	16556 KB	Output is correct
65	Correct	173 ms	16544 KB	Output is correct
66	Correct	169 ms	16436 KB	Output is correct
67	Correct	156 ms	16436 KB	Output is correct
68	Correct	163 ms	16432 KB	Output is correct
69	Correct	151 ms	16324 KB	Output is correct
70	Correct	148 ms	16424 KB	Output is correct
71	Correct	165 ms	16408 KB	Output is correct
72	Correct	165 ms	16324 KB	Output is correct
73	Correct	170 ms	26552 KB	Output is correct
74	Correct	170 ms	26360 KB	Output is correct
75	Correct	143 ms	16316 KB	Output is correct
76	Correct	155 ms	16324 KB	Output is correct
77	Correct	152 ms	16324 KB	Output is correct
78	Correct	147 ms	16288 KB	Output is correct
79	Correct	149 ms	16312 KB	Output is correct
80	Correct	150 ms	16292 KB	Output is correct
81	Correct	129 ms	16608 KB	Output is correct
82	Correct	137 ms	16448 KB	Output is correct
83	Correct	161 ms	20504 KB	Output is correct
84	Correct	162 ms	22180 KB	Output is correct
85	Correct	161 ms	21956 KB	Output is correct
86	Correct	148 ms	17492 KB	Output is correct
87	Correct	151 ms	17048 KB	Output is correct
88	Correct	154 ms	17452 KB	Output is correct
89	Correct	161 ms	17552 KB	Output is correct
90	Correct	139 ms	17424 KB	Output is correct
91	Correct	137 ms	17596 KB	Output is correct
92	Correct	134 ms	17732 KB	Output is correct
93	Correct	144 ms	19548 KB	Output is correct
94	Correct	137 ms	20920 KB	Output is correct
95	Correct	137 ms	20000 KB	Output is correct
96	Correct	144 ms	18584 KB	Output is correct
97	Correct	132 ms	17304 KB	Output is correct
98	Correct	149 ms	16860 KB	Output is correct
99	Correct	159 ms	16724 KB	Output is correct
100	Correct	157 ms	19268 KB	Output is correct
101	Correct	144 ms	17744 KB	Output is correct
102	Correct	130 ms	17024 KB	Output is correct
103	Correct	178 ms	16964 KB	Output is correct
104	Correct	97 ms	17200 KB	Output is correct
105	Correct	188 ms	23836 KB	Output is correct
106	Correct	85 ms	16952 KB	Output is correct
107	Correct	88 ms	17112 KB	Output is correct
108	Correct	164 ms	27076 KB	Output is correct
109	Correct	104 ms	17128 KB	Output is correct
110	Correct	186 ms	27360 KB	Output is correct
111	Correct	143 ms	16380 KB	Output is correct

답안 #422413

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