Submission #411278

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
411278	2021-05-24T21:53:36 Z	nichke	Power Plant (JOI20_power)	C++14	100 / 100	211 ms	31272 KB

power

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'

int n;
int cnt;
string s;

vector<int> adj[200005];
bool pw[200005];
int dp[200005][2];

void dfs(int v, int p = -1) {
	if (s[v] == '1') dp[v][0] = 1;
	int tot = 0, mx = 0;
	for (int u : adj[v]) {
		if (u == p) continue;
		dfs(u, v);
		tot += dp[u][0];
		mx = max(mx, dp[u][0]);
	}
	dp[v][0] = max(tot - dp[v][0], dp[v][0]);
	if (s[v] == '1') dp[v][1] = mx + 1;
}

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;
		u--; v--;
		adj[u].push_back(v);
		adj[v].push_back(u);
	}
	cin >> s;
	for (int i = 0; i < n; i++) {
		if (s[i] == '1') cnt++;
	}
	int ans = 0;
	dfs(0);
	for (int i = 0; i < n; i++) {
		ans = max({ans, dp[i][0], dp[i][1]});
	}
	cout << ans << '\n';
	return 0;
}

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	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	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	3 ms	4940 KB	Output is correct
12	Correct	3 ms	5056 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	4 ms	4960 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	4940 KB	Output is correct
19	Correct	3 ms	4940 KB	Output is correct
20	Correct	3 ms	4940 KB	Output is correct
21	Correct	3 ms	4940 KB	Output is correct

Subtask #2
41.0 / 41.0

#	Verdict	Execution time	Memory	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	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	3 ms	4940 KB	Output is correct
12	Correct	3 ms	5056 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	4 ms	4960 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	4940 KB	Output is correct
19	Correct	3 ms	4940 KB	Output is correct
20	Correct	3 ms	4940 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	5108 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	4 ms	5196 KB	Output is correct
30	Correct	4 ms	5084 KB	Output is correct
31	Correct	4 ms	5068 KB	Output is correct
32	Correct	4 ms	5084 KB	Output is correct
33	Correct	4 ms	5068 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	4 ms	5080 KB	Output is correct
36	Correct	4 ms	5068 KB	Output is correct
37	Correct	4 ms	5068 KB	Output is correct
38	Correct	5 ms	5068 KB	Output is correct
39	Correct	4 ms	5068 KB	Output is correct
40	Correct	4 ms	5156 KB	Output is correct
41	Correct	4 ms	5068 KB	Output is correct
42	Correct	4 ms	5068 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	5068 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	5068 KB	Output is correct
50	Correct	4 ms	5068 KB	Output is correct
51	Correct	4 ms	5068 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	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	5168 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

#	Verdict	Execution time	Memory	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	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	3 ms	4940 KB	Output is correct
12	Correct	3 ms	5056 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	3 ms	4940 KB	Output is correct
15	Correct	4 ms	4960 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	4940 KB	Output is correct
19	Correct	3 ms	4940 KB	Output is correct
20	Correct	3 ms	4940 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	5108 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	4 ms	5196 KB	Output is correct
30	Correct	4 ms	5084 KB	Output is correct
31	Correct	4 ms	5068 KB	Output is correct
32	Correct	4 ms	5084 KB	Output is correct
33	Correct	4 ms	5068 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	4 ms	5080 KB	Output is correct
36	Correct	4 ms	5068 KB	Output is correct
37	Correct	4 ms	5068 KB	Output is correct
38	Correct	5 ms	5068 KB	Output is correct
39	Correct	4 ms	5068 KB	Output is correct
40	Correct	4 ms	5156 KB	Output is correct
41	Correct	4 ms	5068 KB	Output is correct
42	Correct	4 ms	5068 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	5068 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	5068 KB	Output is correct
50	Correct	4 ms	5068 KB	Output is correct
51	Correct	4 ms	5068 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	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	5168 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	148 ms	18444 KB	Output is correct
65	Correct	142 ms	18528 KB	Output is correct
66	Correct	143 ms	18540 KB	Output is correct
67	Correct	158 ms	18432 KB	Output is correct
68	Correct	147 ms	18508 KB	Output is correct
69	Correct	141 ms	18548 KB	Output is correct
70	Correct	145 ms	18428 KB	Output is correct
71	Correct	145 ms	18440 KB	Output is correct
72	Correct	147 ms	18532 KB	Output is correct
73	Correct	153 ms	30152 KB	Output is correct
74	Correct	157 ms	30092 KB	Output is correct
75	Correct	157 ms	19748 KB	Output is correct
76	Correct	149 ms	19660 KB	Output is correct
77	Correct	149 ms	18448 KB	Output is correct
78	Correct	146 ms	18432 KB	Output is correct
79	Correct	147 ms	18408 KB	Output is correct
80	Correct	149 ms	18524 KB	Output is correct
81	Correct	132 ms	18536 KB	Output is correct
82	Correct	143 ms	18532 KB	Output is correct
83	Correct	171 ms	23512 KB	Output is correct
84	Correct	157 ms	25768 KB	Output is correct
85	Correct	153 ms	25324 KB	Output is correct
86	Correct	169 ms	19772 KB	Output is correct
87	Correct	145 ms	19264 KB	Output is correct
88	Correct	139 ms	19404 KB	Output is correct
89	Correct	138 ms	19396 KB	Output is correct
90	Correct	131 ms	19164 KB	Output is correct
91	Correct	135 ms	19432 KB	Output is correct
92	Correct	152 ms	19704 KB	Output is correct
93	Correct	211 ms	21932 KB	Output is correct
94	Correct	134 ms	23604 KB	Output is correct
95	Correct	131 ms	22324 KB	Output is correct
96	Correct	166 ms	20464 KB	Output is correct
97	Correct	144 ms	19024 KB	Output is correct
98	Correct	131 ms	18760 KB	Output is correct
99	Correct	151 ms	18544 KB	Output is correct
100	Correct	140 ms	21452 KB	Output is correct
101	Correct	132 ms	19420 KB	Output is correct
102	Correct	129 ms	18768 KB	Output is correct
103	Correct	138 ms	18796 KB	Output is correct
104	Correct	101 ms	19156 KB	Output is correct
105	Correct	157 ms	26952 KB	Output is correct
106	Correct	119 ms	19060 KB	Output is correct
107	Correct	108 ms	19040 KB	Output is correct
108	Correct	154 ms	31108 KB	Output is correct
109	Correct	96 ms	19192 KB	Output is correct
110	Correct	156 ms	31272 KB	Output is correct
111	Correct	130 ms	18452 KB	Output is correct

Submission #411278

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