답안 #293915

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
293915	2020-09-08T13:44:13 Z	Mlxa	Power Plant (JOI20_power)	C++14	100 / 100	234 ms	41932 KB

power

#ifdef LC
#include "pch.h"
#else
#include <bits/stdc++.h>
#endif

using namespace std;
using ll = long long;
#define int ll
#define all(x) x.begin(), x.end()
#define x first
#define y second
#define mp make_pair
#define mt make_tuple

const int N = 1e6 + 10;
int n;
int gen[N];
int dp[N];
vector<int> g[N];
int answer = 1;

void dfs(int v, int p) {
	dp[v] = -gen[v];
	for (int u : g[v]) {
		if (u == p) {
			continue;
		}
		dfs(u, v);
		dp[v] += dp[u];
	}
	dp[v] = max(dp[v], gen[v]);
	if (v != p) {
		answer = max(answer, dp[v] + gen[p]);
	}
	answer = max(answer, dp[v]);
}

signed main() {
#ifdef LC
	assert(freopen("input.txt", "r", stdin));
#endif
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n;
	for (int v, u, i = 0; i < n - 1; ++i) {
		cin >> v >> u;
		--v, --u;
		g[v].push_back(u);
		g[u].push_back(v);
	}
	/*
	for (int i = 0; i < n; ++i) {
		cout << i << ":\t";
		for (int j : g[i]) {
			cout << j << " ";
		}
		cout << endl;
	}
	*/
	string str;
	cin >> str;
	for (int i = 0; i < n; ++i) {
		gen[i] = str[i] == '1';
	}
	dfs(0, 0);
	cout << answer << "\n";
	return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	23808 KB	Output is correct
2	Correct	16 ms	23808 KB	Output is correct
3	Correct	16 ms	23808 KB	Output is correct
4	Correct	16 ms	23808 KB	Output is correct
5	Correct	16 ms	23808 KB	Output is correct
6	Correct	16 ms	23808 KB	Output is correct
7	Correct	16 ms	23808 KB	Output is correct
8	Correct	16 ms	23808 KB	Output is correct
9	Correct	16 ms	23808 KB	Output is correct
10	Correct	16 ms	23808 KB	Output is correct
11	Correct	16 ms	23808 KB	Output is correct
12	Correct	16 ms	23808 KB	Output is correct
13	Correct	16 ms	23808 KB	Output is correct
14	Correct	16 ms	23808 KB	Output is correct
15	Correct	16 ms	23808 KB	Output is correct
16	Correct	17 ms	23808 KB	Output is correct
17	Correct	16 ms	23808 KB	Output is correct
18	Correct	16 ms	23808 KB	Output is correct
19	Correct	16 ms	23848 KB	Output is correct
20	Correct	16 ms	23808 KB	Output is correct
21	Correct	17 ms	23936 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	23808 KB	Output is correct
2	Correct	16 ms	23808 KB	Output is correct
3	Correct	16 ms	23808 KB	Output is correct
4	Correct	16 ms	23808 KB	Output is correct
5	Correct	16 ms	23808 KB	Output is correct
6	Correct	16 ms	23808 KB	Output is correct
7	Correct	16 ms	23808 KB	Output is correct
8	Correct	16 ms	23808 KB	Output is correct
9	Correct	16 ms	23808 KB	Output is correct
10	Correct	16 ms	23808 KB	Output is correct
11	Correct	16 ms	23808 KB	Output is correct
12	Correct	16 ms	23808 KB	Output is correct
13	Correct	16 ms	23808 KB	Output is correct
14	Correct	16 ms	23808 KB	Output is correct
15	Correct	16 ms	23808 KB	Output is correct
16	Correct	17 ms	23808 KB	Output is correct
17	Correct	16 ms	23808 KB	Output is correct
18	Correct	16 ms	23808 KB	Output is correct
19	Correct	16 ms	23848 KB	Output is correct
20	Correct	16 ms	23808 KB	Output is correct
21	Correct	17 ms	23936 KB	Output is correct
22	Correct	17 ms	23936 KB	Output is correct
23	Correct	17 ms	24064 KB	Output is correct
24	Correct	19 ms	23936 KB	Output is correct
25	Correct	17 ms	23936 KB	Output is correct
26	Correct	18 ms	23936 KB	Output is correct
27	Correct	17 ms	23936 KB	Output is correct
28	Correct	17 ms	23936 KB	Output is correct
29	Correct	17 ms	23936 KB	Output is correct
30	Correct	17 ms	23936 KB	Output is correct
31	Correct	17 ms	23936 KB	Output is correct
32	Correct	17 ms	23936 KB	Output is correct
33	Correct	18 ms	23936 KB	Output is correct
34	Correct	17 ms	23936 KB	Output is correct
35	Correct	17 ms	23936 KB	Output is correct
36	Correct	17 ms	23936 KB	Output is correct
37	Correct	17 ms	23972 KB	Output is correct
38	Correct	17 ms	23936 KB	Output is correct
39	Correct	17 ms	23936 KB	Output is correct
40	Correct	17 ms	23936 KB	Output is correct
41	Correct	18 ms	23936 KB	Output is correct
42	Correct	17 ms	23936 KB	Output is correct
43	Correct	17 ms	23936 KB	Output is correct
44	Correct	18 ms	23936 KB	Output is correct
45	Correct	17 ms	23936 KB	Output is correct
46	Correct	17 ms	23936 KB	Output is correct
47	Correct	17 ms	23936 KB	Output is correct
48	Correct	17 ms	23936 KB	Output is correct
49	Correct	17 ms	23936 KB	Output is correct
50	Correct	17 ms	23936 KB	Output is correct
51	Correct	17 ms	23936 KB	Output is correct
52	Correct	17 ms	23936 KB	Output is correct
53	Correct	17 ms	23936 KB	Output is correct
54	Correct	17 ms	23936 KB	Output is correct
55	Correct	17 ms	23936 KB	Output is correct
56	Correct	17 ms	23936 KB	Output is correct
57	Correct	18 ms	24192 KB	Output is correct
58	Correct	17 ms	23936 KB	Output is correct
59	Correct	17 ms	23936 KB	Output is correct
60	Correct	17 ms	23936 KB	Output is correct
61	Correct	17 ms	23936 KB	Output is correct
62	Correct	17 ms	23936 KB	Output is correct
63	Correct	17 ms	23936 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	23808 KB	Output is correct
2	Correct	16 ms	23808 KB	Output is correct
3	Correct	16 ms	23808 KB	Output is correct
4	Correct	16 ms	23808 KB	Output is correct
5	Correct	16 ms	23808 KB	Output is correct
6	Correct	16 ms	23808 KB	Output is correct
7	Correct	16 ms	23808 KB	Output is correct
8	Correct	16 ms	23808 KB	Output is correct
9	Correct	16 ms	23808 KB	Output is correct
10	Correct	16 ms	23808 KB	Output is correct
11	Correct	16 ms	23808 KB	Output is correct
12	Correct	16 ms	23808 KB	Output is correct
13	Correct	16 ms	23808 KB	Output is correct
14	Correct	16 ms	23808 KB	Output is correct
15	Correct	16 ms	23808 KB	Output is correct
16	Correct	17 ms	23808 KB	Output is correct
17	Correct	16 ms	23808 KB	Output is correct
18	Correct	16 ms	23808 KB	Output is correct
19	Correct	16 ms	23848 KB	Output is correct
20	Correct	16 ms	23808 KB	Output is correct
21	Correct	17 ms	23936 KB	Output is correct
22	Correct	17 ms	23936 KB	Output is correct
23	Correct	17 ms	24064 KB	Output is correct
24	Correct	19 ms	23936 KB	Output is correct
25	Correct	17 ms	23936 KB	Output is correct
26	Correct	18 ms	23936 KB	Output is correct
27	Correct	17 ms	23936 KB	Output is correct
28	Correct	17 ms	23936 KB	Output is correct
29	Correct	17 ms	23936 KB	Output is correct
30	Correct	17 ms	23936 KB	Output is correct
31	Correct	17 ms	23936 KB	Output is correct
32	Correct	17 ms	23936 KB	Output is correct
33	Correct	18 ms	23936 KB	Output is correct
34	Correct	17 ms	23936 KB	Output is correct
35	Correct	17 ms	23936 KB	Output is correct
36	Correct	17 ms	23936 KB	Output is correct
37	Correct	17 ms	23972 KB	Output is correct
38	Correct	17 ms	23936 KB	Output is correct
39	Correct	17 ms	23936 KB	Output is correct
40	Correct	17 ms	23936 KB	Output is correct
41	Correct	18 ms	23936 KB	Output is correct
42	Correct	17 ms	23936 KB	Output is correct
43	Correct	17 ms	23936 KB	Output is correct
44	Correct	18 ms	23936 KB	Output is correct
45	Correct	17 ms	23936 KB	Output is correct
46	Correct	17 ms	23936 KB	Output is correct
47	Correct	17 ms	23936 KB	Output is correct
48	Correct	17 ms	23936 KB	Output is correct
49	Correct	17 ms	23936 KB	Output is correct
50	Correct	17 ms	23936 KB	Output is correct
51	Correct	17 ms	23936 KB	Output is correct
52	Correct	17 ms	23936 KB	Output is correct
53	Correct	17 ms	23936 KB	Output is correct
54	Correct	17 ms	23936 KB	Output is correct
55	Correct	17 ms	23936 KB	Output is correct
56	Correct	17 ms	23936 KB	Output is correct
57	Correct	18 ms	24192 KB	Output is correct
58	Correct	17 ms	23936 KB	Output is correct
59	Correct	17 ms	23936 KB	Output is correct
60	Correct	17 ms	23936 KB	Output is correct
61	Correct	17 ms	23936 KB	Output is correct
62	Correct	17 ms	23936 KB	Output is correct
63	Correct	17 ms	23936 KB	Output is correct
64	Correct	183 ms	34680 KB	Output is correct
65	Correct	190 ms	34616 KB	Output is correct
66	Correct	186 ms	34600 KB	Output is correct
67	Correct	181 ms	34612 KB	Output is correct
68	Correct	181 ms	34728 KB	Output is correct
69	Correct	180 ms	34612 KB	Output is correct
70	Correct	206 ms	34556 KB	Output is correct
71	Correct	227 ms	34648 KB	Output is correct
72	Correct	196 ms	34612 KB	Output is correct
73	Correct	232 ms	41272 KB	Output is correct
74	Correct	212 ms	41144 KB	Output is correct
75	Correct	202 ms	35892 KB	Output is correct
76	Correct	205 ms	35900 KB	Output is correct
77	Correct	211 ms	34632 KB	Output is correct
78	Correct	217 ms	34620 KB	Output is correct
79	Correct	194 ms	34620 KB	Output is correct
80	Correct	211 ms	34612 KB	Output is correct
81	Correct	165 ms	34768 KB	Output is correct
82	Correct	188 ms	34672 KB	Output is correct
83	Correct	217 ms	37608 KB	Output is correct
84	Correct	220 ms	38932 KB	Output is correct
85	Correct	234 ms	38816 KB	Output is correct
86	Correct	217 ms	35380 KB	Output is correct
87	Correct	213 ms	35212 KB	Output is correct
88	Correct	197 ms	35236 KB	Output is correct
89	Correct	202 ms	35308 KB	Output is correct
90	Correct	206 ms	35096 KB	Output is correct
91	Correct	188 ms	35228 KB	Output is correct
92	Correct	196 ms	35496 KB	Output is correct
93	Correct	190 ms	36720 KB	Output is correct
94	Correct	176 ms	37724 KB	Output is correct
95	Correct	175 ms	36956 KB	Output is correct
96	Correct	187 ms	35768 KB	Output is correct
97	Correct	187 ms	34972 KB	Output is correct
98	Correct	185 ms	34792 KB	Output is correct
99	Correct	200 ms	34740 KB	Output is correct
100	Correct	179 ms	36416 KB	Output is correct
101	Correct	196 ms	35060 KB	Output is correct
102	Correct	178 ms	34824 KB	Output is correct
103	Correct	197 ms	34904 KB	Output is correct
104	Correct	121 ms	35188 KB	Output is correct
105	Correct	203 ms	39352 KB	Output is correct
106	Correct	119 ms	35300 KB	Output is correct
107	Correct	116 ms	35300 KB	Output is correct
108	Correct	198 ms	41652 KB	Output is correct
109	Correct	117 ms	35268 KB	Output is correct
110	Correct	218 ms	41932 KB	Output is correct
111	Correct	187 ms	34568 KB	Output is correct

답안 #293915

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