답안 #634454

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
634454	2022-08-24T12:45:17 Z	ParsaEs	Power Plant (JOI20_power)	C++17	100 / 100	232 ms	45992 KB

power

//InTheNameOfGOD
//PRS;)
#pragma GCC optimize("unroll-loops", "O2", "Ofast", "O3")
#pragma GCC target("avx2", "sse", "sse2")
#include<bits/stdc++.h>
#define Fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define rep(i, l, r) for(ii i = l; i < r; i++)
#define per(i, l, r) for(ii i = r - 1; i >= l; i--)
#define max(x, y) (x > y ? x : y)
#define pb push_back
typedef int ii;
using namespace std;
constexpr ii xn = 2e5 + 5;
vector<ii> g[xn], g1[xn];
ii dd[xn], du[xn], p[xn], s[xn], ans;
char c[xn];
bool f[xn];
void pfs(ii v, ii pa)
{
	ii x = 0;
	for(ii u : g[v]) if(pa != u) pfs(u, v), g1[v].pb(u), x += dd[u];
	g[v].clear();
	if(f[v]) dd[v] = max(x - 1, 1);
	else dd[v] = x;
}
void dfs(ii v)
{
	ii z = g1[v].size();
	p[0] = s[z] = 0;
	rep(i, 0, z) p[i + 1] = dd[g1[v][i]] + p[i];
	per(i, 0, z) s[i] = dd[g1[v][i]] + s[i + 1];
	rep(i, 0, z)
	{
		ii u = g1[v][i];
		ii x = du[v] + p[i] + s[i + 1];
		if(f[v]) du[u] = max(x - 1, 1);
		else du[u] = x;
	}
	if(f[v])
	{
		ans = max(du[v] + 1, ans);
		for(ii u : g1[v]) ans = max(dd[u] + 1, ans);
		ans = max(du[v] + p[z] - 1, ans);
	}
	for(ii u : g1[v]) dfs(u);
}
ii main()
{
	Fast;
	ii n;
	cin >> n;
	ii m = n - 1;
	while(m--)
	{
		ii u, v;
		cin >> u >> v;
		g[--u].pb(--v), g[v].pb(u);
	}
	rep(i, 0, n) cin >> c[i];
	rep(i, 0, n) if(c[i] == '1') f[i] = 1;
	pfs(0, 0), dfs(0);
	cout << ans << '\n';
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	9684 KB	Output is correct
2	Correct	5 ms	9684 KB	Output is correct
3	Correct	7 ms	9684 KB	Output is correct
4	Correct	7 ms	9684 KB	Output is correct
5	Correct	6 ms	9684 KB	Output is correct
6	Correct	7 ms	9720 KB	Output is correct
7	Correct	7 ms	9720 KB	Output is correct
8	Correct	6 ms	9680 KB	Output is correct
9	Correct	6 ms	9684 KB	Output is correct
10	Correct	6 ms	9684 KB	Output is correct
11	Correct	6 ms	9684 KB	Output is correct
12	Correct	6 ms	9732 KB	Output is correct
13	Correct	5 ms	9684 KB	Output is correct
14	Correct	6 ms	9720 KB	Output is correct
15	Correct	5 ms	9684 KB	Output is correct
16	Correct	6 ms	9724 KB	Output is correct
17	Correct	6 ms	9684 KB	Output is correct
18	Correct	7 ms	9788 KB	Output is correct
19	Correct	5 ms	9684 KB	Output is correct
20	Correct	7 ms	9728 KB	Output is correct
21	Correct	5 ms	9724 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	9684 KB	Output is correct
2	Correct	5 ms	9684 KB	Output is correct
3	Correct	7 ms	9684 KB	Output is correct
4	Correct	7 ms	9684 KB	Output is correct
5	Correct	6 ms	9684 KB	Output is correct
6	Correct	7 ms	9720 KB	Output is correct
7	Correct	7 ms	9720 KB	Output is correct
8	Correct	6 ms	9680 KB	Output is correct
9	Correct	6 ms	9684 KB	Output is correct
10	Correct	6 ms	9684 KB	Output is correct
11	Correct	6 ms	9684 KB	Output is correct
12	Correct	6 ms	9732 KB	Output is correct
13	Correct	5 ms	9684 KB	Output is correct
14	Correct	6 ms	9720 KB	Output is correct
15	Correct	5 ms	9684 KB	Output is correct
16	Correct	6 ms	9724 KB	Output is correct
17	Correct	6 ms	9684 KB	Output is correct
18	Correct	7 ms	9788 KB	Output is correct
19	Correct	5 ms	9684 KB	Output is correct
20	Correct	7 ms	9728 KB	Output is correct
21	Correct	5 ms	9724 KB	Output is correct
22	Correct	7 ms	9868 KB	Output is correct
23	Correct	6 ms	9812 KB	Output is correct
24	Correct	7 ms	9812 KB	Output is correct
25	Correct	7 ms	9812 KB	Output is correct
26	Correct	7 ms	9864 KB	Output is correct
27	Correct	8 ms	9812 KB	Output is correct
28	Correct	8 ms	9812 KB	Output is correct
29	Correct	6 ms	10068 KB	Output is correct
30	Correct	6 ms	10000 KB	Output is correct
31	Correct	6 ms	9864 KB	Output is correct
32	Correct	7 ms	9852 KB	Output is correct
33	Correct	6 ms	9812 KB	Output is correct
34	Correct	6 ms	9812 KB	Output is correct
35	Correct	7 ms	9860 KB	Output is correct
36	Correct	6 ms	9812 KB	Output is correct
37	Correct	7 ms	9860 KB	Output is correct
38	Correct	6 ms	9812 KB	Output is correct
39	Correct	7 ms	9940 KB	Output is correct
40	Correct	6 ms	9940 KB	Output is correct
41	Correct	7 ms	9864 KB	Output is correct
42	Correct	6 ms	9812 KB	Output is correct
43	Correct	6 ms	9812 KB	Output is correct
44	Correct	7 ms	9820 KB	Output is correct
45	Correct	6 ms	9884 KB	Output is correct
46	Correct	6 ms	9892 KB	Output is correct
47	Correct	8 ms	9812 KB	Output is correct
48	Correct	7 ms	9988 KB	Output is correct
49	Correct	7 ms	9940 KB	Output is correct
50	Correct	7 ms	9940 KB	Output is correct
51	Correct	7 ms	9940 KB	Output is correct
52	Correct	6 ms	9864 KB	Output is correct
53	Correct	8 ms	9844 KB	Output is correct
54	Correct	6 ms	9812 KB	Output is correct
55	Correct	6 ms	9864 KB	Output is correct
56	Correct	6 ms	9864 KB	Output is correct
57	Correct	7 ms	10040 KB	Output is correct
58	Correct	6 ms	9780 KB	Output is correct
59	Correct	6 ms	9868 KB	Output is correct
60	Correct	6 ms	9992 KB	Output is correct
61	Correct	6 ms	9812 KB	Output is correct
62	Correct	7 ms	9940 KB	Output is correct
63	Correct	6 ms	9812 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	9684 KB	Output is correct
2	Correct	5 ms	9684 KB	Output is correct
3	Correct	7 ms	9684 KB	Output is correct
4	Correct	7 ms	9684 KB	Output is correct
5	Correct	6 ms	9684 KB	Output is correct
6	Correct	7 ms	9720 KB	Output is correct
7	Correct	7 ms	9720 KB	Output is correct
8	Correct	6 ms	9680 KB	Output is correct
9	Correct	6 ms	9684 KB	Output is correct
10	Correct	6 ms	9684 KB	Output is correct
11	Correct	6 ms	9684 KB	Output is correct
12	Correct	6 ms	9732 KB	Output is correct
13	Correct	5 ms	9684 KB	Output is correct
14	Correct	6 ms	9720 KB	Output is correct
15	Correct	5 ms	9684 KB	Output is correct
16	Correct	6 ms	9724 KB	Output is correct
17	Correct	6 ms	9684 KB	Output is correct
18	Correct	7 ms	9788 KB	Output is correct
19	Correct	5 ms	9684 KB	Output is correct
20	Correct	7 ms	9728 KB	Output is correct
21	Correct	5 ms	9724 KB	Output is correct
22	Correct	7 ms	9868 KB	Output is correct
23	Correct	6 ms	9812 KB	Output is correct
24	Correct	7 ms	9812 KB	Output is correct
25	Correct	7 ms	9812 KB	Output is correct
26	Correct	7 ms	9864 KB	Output is correct
27	Correct	8 ms	9812 KB	Output is correct
28	Correct	8 ms	9812 KB	Output is correct
29	Correct	6 ms	10068 KB	Output is correct
30	Correct	6 ms	10000 KB	Output is correct
31	Correct	6 ms	9864 KB	Output is correct
32	Correct	7 ms	9852 KB	Output is correct
33	Correct	6 ms	9812 KB	Output is correct
34	Correct	6 ms	9812 KB	Output is correct
35	Correct	7 ms	9860 KB	Output is correct
36	Correct	6 ms	9812 KB	Output is correct
37	Correct	7 ms	9860 KB	Output is correct
38	Correct	6 ms	9812 KB	Output is correct
39	Correct	7 ms	9940 KB	Output is correct
40	Correct	6 ms	9940 KB	Output is correct
41	Correct	7 ms	9864 KB	Output is correct
42	Correct	6 ms	9812 KB	Output is correct
43	Correct	6 ms	9812 KB	Output is correct
44	Correct	7 ms	9820 KB	Output is correct
45	Correct	6 ms	9884 KB	Output is correct
46	Correct	6 ms	9892 KB	Output is correct
47	Correct	8 ms	9812 KB	Output is correct
48	Correct	7 ms	9988 KB	Output is correct
49	Correct	7 ms	9940 KB	Output is correct
50	Correct	7 ms	9940 KB	Output is correct
51	Correct	7 ms	9940 KB	Output is correct
52	Correct	6 ms	9864 KB	Output is correct
53	Correct	8 ms	9844 KB	Output is correct
54	Correct	6 ms	9812 KB	Output is correct
55	Correct	6 ms	9864 KB	Output is correct
56	Correct	6 ms	9864 KB	Output is correct
57	Correct	7 ms	10040 KB	Output is correct
58	Correct	6 ms	9780 KB	Output is correct
59	Correct	6 ms	9868 KB	Output is correct
60	Correct	6 ms	9992 KB	Output is correct
61	Correct	6 ms	9812 KB	Output is correct
62	Correct	7 ms	9940 KB	Output is correct
63	Correct	6 ms	9812 KB	Output is correct
64	Correct	195 ms	24572 KB	Output is correct
65	Correct	157 ms	24516 KB	Output is correct
66	Correct	166 ms	24528 KB	Output is correct
67	Correct	162 ms	24516 KB	Output is correct
68	Correct	169 ms	24504 KB	Output is correct
69	Correct	150 ms	24468 KB	Output is correct
70	Correct	162 ms	24488 KB	Output is correct
71	Correct	173 ms	24444 KB	Output is correct
72	Correct	158 ms	24412 KB	Output is correct
73	Correct	188 ms	44688 KB	Output is correct
74	Correct	187 ms	44648 KB	Output is correct
75	Correct	176 ms	23892 KB	Output is correct
76	Correct	165 ms	23784 KB	Output is correct
77	Correct	161 ms	25292 KB	Output is correct
78	Correct	183 ms	25420 KB	Output is correct
79	Correct	232 ms	25352 KB	Output is correct
80	Correct	155 ms	25232 KB	Output is correct
81	Correct	126 ms	24504 KB	Output is correct
82	Correct	189 ms	24572 KB	Output is correct
83	Correct	185 ms	32096 KB	Output is correct
84	Correct	199 ms	35116 KB	Output is correct
85	Correct	178 ms	34668 KB	Output is correct
86	Correct	182 ms	26324 KB	Output is correct
87	Correct	150 ms	25564 KB	Output is correct
88	Correct	148 ms	26108 KB	Output is correct
89	Correct	151 ms	25928 KB	Output is correct
90	Correct	169 ms	25620 KB	Output is correct
91	Correct	171 ms	26040 KB	Output is correct
92	Correct	150 ms	26444 KB	Output is correct
93	Correct	141 ms	30208 KB	Output is correct
94	Correct	136 ms	32704 KB	Output is correct
95	Correct	143 ms	30560 KB	Output is correct
96	Correct	179 ms	27896 KB	Output is correct
97	Correct	129 ms	25676 KB	Output is correct
98	Correct	135 ms	25068 KB	Output is correct
99	Correct	154 ms	24832 KB	Output is correct
100	Correct	180 ms	29128 KB	Output is correct
101	Correct	140 ms	26248 KB	Output is correct
102	Correct	135 ms	25252 KB	Output is correct
103	Correct	160 ms	25112 KB	Output is correct
104	Correct	78 ms	23804 KB	Output is correct
105	Correct	179 ms	39984 KB	Output is correct
106	Correct	99 ms	23804 KB	Output is correct
107	Correct	94 ms	23792 KB	Output is correct
108	Correct	182 ms	45544 KB	Output is correct
109	Correct	78 ms	23812 KB	Output is correct
110	Correct	189 ms	45992 KB	Output is correct
111	Correct	155 ms	22676 KB	Output is correct

답안 #634454

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