답안 #532879

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
532879	2022-03-04T07:22:06 Z	vuhoanggiap	Power Plant (JOI20_power)	C++17	100 / 100	153 ms	28688 KB

power

#include <bits/stdc++.h>
#define pb push_back
using namespace std;

const int maxN = 2e5 + 5; 
int n, ans; 
bool has[maxN];
int dp[maxN];
vector<int> adj[maxN];

void dfs(int u, int p = 1) { 
	for (auto v : adj[u]) {
		if (v != p) {
			dfs(v, u); 
			dp[u] += dp[v]; 
			ans = max(ans, dp[v] + has[u]); 
		}
	}
	if (has[u]) 
		dp[u] = max(dp[u] - 1, 1); 
	dp[u] = max(dp[u], 0); 
	ans = max(ans, dp[u]); 
}

signed main() {
	ios_base::sync_with_stdio(0); cin.tie(0); 
	cin >> n; 
	for (int i = 1; i < n; i++) {
		int u, v; cin >> u >> v; 
		adj[u].pb(v); adj[v].pb(u); 
	}
	for (int i = 1; i <= n; i++) {
		char c; cin >> c; 
		has[i] = (c == '1'); 
	}
	dfs(1); 
	cout << ans; 
}

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	5016 KB	Output is correct
5	Correct	3 ms	5016 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	5016 KB	Output is correct
8	Correct	3 ms	5016 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	5000 KB	Output is correct
11	Correct	3 ms	4940 KB	Output is correct
12	Correct	3 ms	4940 KB	Output is correct
13	Correct	3 ms	4952 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	3 ms	5016 KB	Output is correct
16	Correct	4 ms	5012 KB	Output is correct
17	Correct	3 ms	5016 KB	Output is correct
18	Correct	3 ms	5012 KB	Output is correct
19	Correct	3 ms	5020 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	3 ms	5020 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	5016 KB	Output is correct
5	Correct	3 ms	5016 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	5016 KB	Output is correct
8	Correct	3 ms	5016 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	5000 KB	Output is correct
11	Correct	3 ms	4940 KB	Output is correct
12	Correct	3 ms	4940 KB	Output is correct
13	Correct	3 ms	4952 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	3 ms	5016 KB	Output is correct
16	Correct	4 ms	5012 KB	Output is correct
17	Correct	3 ms	5016 KB	Output is correct
18	Correct	3 ms	5012 KB	Output is correct
19	Correct	3 ms	5020 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	3 ms	5020 KB	Output is correct
22	Correct	4 ms	5016 KB	Output is correct
23	Correct	4 ms	5024 KB	Output is correct
24	Correct	4 ms	5072 KB	Output is correct
25	Correct	5 ms	5056 KB	Output is correct
26	Correct	3 ms	5068 KB	Output is correct
27	Correct	3 ms	5028 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	4 ms	5188 KB	Output is correct
30	Correct	4 ms	5152 KB	Output is correct
31	Correct	4 ms	5032 KB	Output is correct
32	Correct	4 ms	5068 KB	Output is correct
33	Correct	3 ms	5068 KB	Output is correct
34	Correct	4 ms	5028 KB	Output is correct
35	Correct	4 ms	5028 KB	Output is correct
36	Correct	5 ms	5072 KB	Output is correct
37	Correct	4 ms	5032 KB	Output is correct
38	Correct	4 ms	5076 KB	Output is correct
39	Correct	4 ms	5068 KB	Output is correct
40	Correct	5 ms	5076 KB	Output is correct
41	Correct	5 ms	5052 KB	Output is correct
42	Correct	4 ms	5068 KB	Output is correct
43	Correct	4 ms	5076 KB	Output is correct
44	Correct	4 ms	5068 KB	Output is correct
45	Correct	4 ms	5068 KB	Output is correct
46	Correct	3 ms	5068 KB	Output is correct
47	Correct	4 ms	5068 KB	Output is correct
48	Correct	3 ms	5068 KB	Output is correct
49	Correct	3 ms	5080 KB	Output is correct
50	Correct	3 ms	5156 KB	Output is correct
51	Correct	4 ms	5024 KB	Output is correct
52	Correct	4 ms	5020 KB	Output is correct
53	Correct	3 ms	5068 KB	Output is correct
54	Correct	3 ms	5028 KB	Output is correct
55	Correct	4 ms	5060 KB	Output is correct
56	Correct	3 ms	5048 KB	Output is correct
57	Correct	4 ms	5156 KB	Output is correct
58	Correct	4 ms	5068 KB	Output is correct
59	Correct	3 ms	5068 KB	Output is correct
60	Correct	4 ms	5068 KB	Output is correct
61	Correct	5 ms	5076 KB	Output is correct
62	Correct	5 ms	5152 KB	Output is correct
63	Correct	4 ms	5024 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	5016 KB	Output is correct
5	Correct	3 ms	5016 KB	Output is correct
6	Correct	3 ms	4940 KB	Output is correct
7	Correct	3 ms	5016 KB	Output is correct
8	Correct	3 ms	5016 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	5000 KB	Output is correct
11	Correct	3 ms	4940 KB	Output is correct
12	Correct	3 ms	4940 KB	Output is correct
13	Correct	3 ms	4952 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	3 ms	5016 KB	Output is correct
16	Correct	4 ms	5012 KB	Output is correct
17	Correct	3 ms	5016 KB	Output is correct
18	Correct	3 ms	5012 KB	Output is correct
19	Correct	3 ms	5020 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	3 ms	5020 KB	Output is correct
22	Correct	4 ms	5016 KB	Output is correct
23	Correct	4 ms	5024 KB	Output is correct
24	Correct	4 ms	5072 KB	Output is correct
25	Correct	5 ms	5056 KB	Output is correct
26	Correct	3 ms	5068 KB	Output is correct
27	Correct	3 ms	5028 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	4 ms	5188 KB	Output is correct
30	Correct	4 ms	5152 KB	Output is correct
31	Correct	4 ms	5032 KB	Output is correct
32	Correct	4 ms	5068 KB	Output is correct
33	Correct	3 ms	5068 KB	Output is correct
34	Correct	4 ms	5028 KB	Output is correct
35	Correct	4 ms	5028 KB	Output is correct
36	Correct	5 ms	5072 KB	Output is correct
37	Correct	4 ms	5032 KB	Output is correct
38	Correct	4 ms	5076 KB	Output is correct
39	Correct	4 ms	5068 KB	Output is correct
40	Correct	5 ms	5076 KB	Output is correct
41	Correct	5 ms	5052 KB	Output is correct
42	Correct	4 ms	5068 KB	Output is correct
43	Correct	4 ms	5076 KB	Output is correct
44	Correct	4 ms	5068 KB	Output is correct
45	Correct	4 ms	5068 KB	Output is correct
46	Correct	3 ms	5068 KB	Output is correct
47	Correct	4 ms	5068 KB	Output is correct
48	Correct	3 ms	5068 KB	Output is correct
49	Correct	3 ms	5080 KB	Output is correct
50	Correct	3 ms	5156 KB	Output is correct
51	Correct	4 ms	5024 KB	Output is correct
52	Correct	4 ms	5020 KB	Output is correct
53	Correct	3 ms	5068 KB	Output is correct
54	Correct	3 ms	5028 KB	Output is correct
55	Correct	4 ms	5060 KB	Output is correct
56	Correct	3 ms	5048 KB	Output is correct
57	Correct	4 ms	5156 KB	Output is correct
58	Correct	4 ms	5068 KB	Output is correct
59	Correct	3 ms	5068 KB	Output is correct
60	Correct	4 ms	5068 KB	Output is correct
61	Correct	5 ms	5076 KB	Output is correct
62	Correct	5 ms	5152 KB	Output is correct
63	Correct	4 ms	5024 KB	Output is correct
64	Correct	133 ms	14984 KB	Output is correct
65	Correct	127 ms	15000 KB	Output is correct
66	Correct	123 ms	14968 KB	Output is correct
67	Correct	111 ms	15008 KB	Output is correct
68	Correct	124 ms	15160 KB	Output is correct
69	Correct	115 ms	15012 KB	Output is correct
70	Correct	119 ms	15044 KB	Output is correct
71	Correct	117 ms	15044 KB	Output is correct
72	Correct	122 ms	15168 KB	Output is correct
73	Correct	132 ms	27648 KB	Output is correct
74	Correct	132 ms	27588 KB	Output is correct
75	Correct	113 ms	14916 KB	Output is correct
76	Correct	134 ms	15092 KB	Output is correct
77	Correct	127 ms	14952 KB	Output is correct
78	Correct	119 ms	14916 KB	Output is correct
79	Correct	135 ms	14864 KB	Output is correct
80	Correct	153 ms	14976 KB	Output is correct
81	Correct	95 ms	15284 KB	Output is correct
82	Correct	106 ms	15148 KB	Output is correct
83	Correct	125 ms	20156 KB	Output is correct
84	Correct	135 ms	22340 KB	Output is correct
85	Correct	120 ms	21900 KB	Output is correct
86	Correct	113 ms	16324 KB	Output is correct
87	Correct	112 ms	15780 KB	Output is correct
88	Correct	109 ms	16296 KB	Output is correct
89	Correct	110 ms	16220 KB	Output is correct
90	Correct	109 ms	16004 KB	Output is correct
91	Correct	112 ms	16312 KB	Output is correct
92	Correct	129 ms	16592 KB	Output is correct
93	Correct	106 ms	19008 KB	Output is correct
94	Correct	104 ms	20576 KB	Output is correct
95	Correct	116 ms	19368 KB	Output is correct
96	Correct	114 ms	17696 KB	Output is correct
97	Correct	111 ms	16068 KB	Output is correct
98	Correct	106 ms	15544 KB	Output is correct
99	Correct	112 ms	15336 KB	Output is correct
100	Correct	117 ms	18588 KB	Output is correct
101	Correct	110 ms	16504 KB	Output is correct
102	Correct	103 ms	15704 KB	Output is correct
103	Correct	111 ms	15556 KB	Output is correct
104	Correct	63 ms	15800 KB	Output is correct
105	Correct	147 ms	24564 KB	Output is correct
106	Correct	65 ms	15636 KB	Output is correct
107	Correct	69 ms	15536 KB	Output is correct
108	Correct	143 ms	28396 KB	Output is correct
109	Correct	64 ms	15776 KB	Output is correct
110	Correct	131 ms	28688 KB	Output is correct
111	Correct	97 ms	14900 KB	Output is correct

답안 #532879

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