답안 #769150

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
769150	2023-06-29T08:53:42 Z	Mohammad_Parsa	Power Plant (JOI20_power)	C++17	100 / 100	142 ms	29580 KB

power

/* in the name of allah */
#include<bits/stdc++.h>
using namespace std;

#define endl '\n'
#define pb push_back
#define F first
#define S second
#define mk make_pair
typedef long long ll;

const int N=2e5+7;
int n,dp[2][N];
string s;
vector<int>vec[N];

void dfs(int v=1,int p=0){
	for(auto u:vec[v]){
		if(u==p)continue;
		dfs(u,v);
	}
	if(s[v-1]=='0'){
		for(auto u:vec[v]){
			if(u==p)continue;
			dp[0][v]+=dp[0][u];
			dp[1][v]=max(dp[1][v],dp[1][u]);
		}
	}
	else{
		int x0=-1,x1=-1,y1=0,z0=1,z1=1;
		for(auto u:vec[v]){
			if(u==p)continue;
			x0+=dp[0][u];
			x1=max(x1,dp[1][u]-1);
			y1=max(y1,dp[1][u]);
			z1=max(z1,dp[0][u]+1);
		}
		dp[0][v]=max(0,max(x0,z0));
		dp[1][v]=max(x1,max(z1,y1));
	}
}

int main(){
	ios:: sync_with_stdio(0),cin.tie(0),cout.tie(0);
	cin>>n;
	int u,v;
	for(int i=1;i<n;i++){
		cin>>u>>v;
		vec[u].pb(v);
		vec[v].pb(u);
	}
	cin>>s;
	dfs();
	cout<<max(dp[0][1],dp[1][1]);
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	5028 KB	Output is correct
5	Correct	3 ms	5024 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	5028 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 ms	4948 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	5032 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	5028 KB	Output is correct
15	Correct	2 ms	4960 KB	Output is correct
16	Correct	3 ms	5024 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	5028 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	5028 KB	Output is correct
5	Correct	3 ms	5024 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	5028 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 ms	4948 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	5032 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	5028 KB	Output is correct
15	Correct	2 ms	4960 KB	Output is correct
16	Correct	3 ms	5024 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	5028 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	3 ms	5036 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	3 ms	5036 KB	Output is correct
26	Correct	3 ms	5040 KB	Output is correct
27	Correct	3 ms	5132 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5168 KB	Output is correct
30	Correct	3 ms	5204 KB	Output is correct
31	Correct	3 ms	5076 KB	Output is correct
32	Correct	3 ms	5076 KB	Output is correct
33	Correct	3 ms	5096 KB	Output is correct
34	Correct	3 ms	5040 KB	Output is correct
35	Correct	3 ms	5076 KB	Output is correct
36	Correct	3 ms	5040 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	3 ms	5076 KB	Output is correct
40	Correct	3 ms	5148 KB	Output is correct
41	Correct	4 ms	5076 KB	Output is correct
42	Correct	4 ms	5076 KB	Output is correct
43	Correct	3 ms	5044 KB	Output is correct
44	Correct	3 ms	5164 KB	Output is correct
45	Correct	3 ms	5076 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 KB	Output is correct
48	Correct	3 ms	5204 KB	Output is correct
49	Correct	3 ms	5168 KB	Output is correct
50	Correct	3 ms	5164 KB	Output is correct
51	Correct	3 ms	5164 KB	Output is correct
52	Correct	3 ms	5076 KB	Output is correct
53	Correct	3 ms	5076 KB	Output is correct
54	Correct	3 ms	5076 KB	Output is correct
55	Correct	3 ms	5036 KB	Output is correct
56	Correct	3 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	3 ms	5092 KB	Output is correct
59	Correct	4 ms	5076 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	3 ms	5076 KB	Output is correct
62	Correct	3 ms	5168 KB	Output is correct
63	Correct	3 ms	5076 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	5028 KB	Output is correct
5	Correct	3 ms	5024 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	5028 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	2 ms	4948 KB	Output is correct
11	Correct	2 ms	4948 KB	Output is correct
12	Correct	2 ms	5032 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	5028 KB	Output is correct
15	Correct	2 ms	4960 KB	Output is correct
16	Correct	3 ms	5024 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	3 ms	5028 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	3 ms	5036 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	3 ms	5036 KB	Output is correct
26	Correct	3 ms	5040 KB	Output is correct
27	Correct	3 ms	5132 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5168 KB	Output is correct
30	Correct	3 ms	5204 KB	Output is correct
31	Correct	3 ms	5076 KB	Output is correct
32	Correct	3 ms	5076 KB	Output is correct
33	Correct	3 ms	5096 KB	Output is correct
34	Correct	3 ms	5040 KB	Output is correct
35	Correct	3 ms	5076 KB	Output is correct
36	Correct	3 ms	5040 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5076 KB	Output is correct
39	Correct	3 ms	5076 KB	Output is correct
40	Correct	3 ms	5148 KB	Output is correct
41	Correct	4 ms	5076 KB	Output is correct
42	Correct	4 ms	5076 KB	Output is correct
43	Correct	3 ms	5044 KB	Output is correct
44	Correct	3 ms	5164 KB	Output is correct
45	Correct	3 ms	5076 KB	Output is correct
46	Correct	3 ms	5076 KB	Output is correct
47	Correct	3 ms	5076 KB	Output is correct
48	Correct	3 ms	5204 KB	Output is correct
49	Correct	3 ms	5168 KB	Output is correct
50	Correct	3 ms	5164 KB	Output is correct
51	Correct	3 ms	5164 KB	Output is correct
52	Correct	3 ms	5076 KB	Output is correct
53	Correct	3 ms	5076 KB	Output is correct
54	Correct	3 ms	5076 KB	Output is correct
55	Correct	3 ms	5036 KB	Output is correct
56	Correct	3 ms	5076 KB	Output is correct
57	Correct	3 ms	5204 KB	Output is correct
58	Correct	3 ms	5092 KB	Output is correct
59	Correct	4 ms	5076 KB	Output is correct
60	Correct	3 ms	5204 KB	Output is correct
61	Correct	3 ms	5076 KB	Output is correct
62	Correct	3 ms	5168 KB	Output is correct
63	Correct	3 ms	5076 KB	Output is correct
64	Correct	73 ms	15996 KB	Output is correct
65	Correct	71 ms	15928 KB	Output is correct
66	Correct	76 ms	15880 KB	Output is correct
67	Correct	69 ms	15884 KB	Output is correct
68	Correct	112 ms	16140 KB	Output is correct
69	Correct	70 ms	15960 KB	Output is correct
70	Correct	64 ms	15964 KB	Output is correct
71	Correct	76 ms	15920 KB	Output is correct
72	Correct	67 ms	15972 KB	Output is correct
73	Correct	87 ms	28512 KB	Output is correct
74	Correct	98 ms	28576 KB	Output is correct
75	Correct	70 ms	15880 KB	Output is correct
76	Correct	65 ms	15828 KB	Output is correct
77	Correct	66 ms	15840 KB	Output is correct
78	Correct	70 ms	15780 KB	Output is correct
79	Correct	68 ms	15780 KB	Output is correct
80	Correct	66 ms	15752 KB	Output is correct
81	Correct	65 ms	16232 KB	Output is correct
82	Correct	63 ms	15976 KB	Output is correct
83	Correct	76 ms	21008 KB	Output is correct
84	Correct	80 ms	23192 KB	Output is correct
85	Correct	93 ms	22848 KB	Output is correct
86	Correct	93 ms	17384 KB	Output is correct
87	Correct	69 ms	16736 KB	Output is correct
88	Correct	68 ms	17092 KB	Output is correct
89	Correct	75 ms	17204 KB	Output is correct
90	Correct	69 ms	17000 KB	Output is correct
91	Correct	77 ms	17216 KB	Output is correct
92	Correct	75 ms	17492 KB	Output is correct
93	Correct	65 ms	19932 KB	Output is correct
94	Correct	67 ms	21636 KB	Output is correct
95	Correct	64 ms	20304 KB	Output is correct
96	Correct	89 ms	18504 KB	Output is correct
97	Correct	74 ms	16996 KB	Output is correct
98	Correct	61 ms	16532 KB	Output is correct
99	Correct	87 ms	16228 KB	Output is correct
100	Correct	74 ms	19412 KB	Output is correct
101	Correct	66 ms	17512 KB	Output is correct
102	Correct	65 ms	16732 KB	Output is correct
103	Correct	63 ms	16464 KB	Output is correct
104	Correct	59 ms	15248 KB	Output is correct
105	Correct	81 ms	25356 KB	Output is correct
106	Correct	55 ms	16740 KB	Output is correct
107	Correct	50 ms	16624 KB	Output is correct
108	Correct	142 ms	29352 KB	Output is correct
109	Correct	71 ms	15312 KB	Output is correct
110	Correct	106 ms	29580 KB	Output is correct
111	Correct	82 ms	15832 KB	Output is correct

답안 #769150

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