답안 #465453

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
465453	2021-08-16T07:14:29 Z	ohasanov	Power Plant (JOI20_power)	C++17	100 / 100	184 ms	28872 KB

power

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

const int N = 200000 + 5;
vector <int> g[N];
int prelist[N], n;
string a;

int dfs(int node, int father)
{
    int st = a[node-1] - '0', best_child = 0, best = 0;
    for (int i = 0; i < (int)g[node].size(); i++)
    {
		int x = g[node][i];
        if (x != father){
			best = max(best, dfs(x, node));
			prelist[node] += prelist[x];
			best_child = max(best_child, prelist[x]);
		}
    }
    prelist[node] = max(st, prelist[node] - st);
    return max(best, max(prelist[node], best_child + st));
}

int main()
{
	ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
    for (int i = 1; i < n; i++)
    {
        int a, b;
        cin >> a >> b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    cin >> a;
    cout << dfs(1, 0);
	
    return 0;
}

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	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	5016 KB	Output is correct
8	Correct	3 ms	5012 KB	Output is correct
9	Correct	3 ms	5012 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	4940 KB	Output is correct
13	Correct	4 ms	5016 KB	Output is correct
14	Correct	3 ms	5016 KB	Output is correct
15	Correct	3 ms	4940 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	5016 KB	Output is correct
21	Correct	3 ms	4940 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	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	5016 KB	Output is correct
8	Correct	3 ms	5012 KB	Output is correct
9	Correct	3 ms	5012 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	4940 KB	Output is correct
13	Correct	4 ms	5016 KB	Output is correct
14	Correct	3 ms	5016 KB	Output is correct
15	Correct	3 ms	4940 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	5016 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	5028 KB	Output is correct
25	Correct	4 ms	5068 KB	Output is correct
26	Correct	4 ms	5068 KB	Output is correct
27	Correct	4 ms	5020 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	4 ms	5156 KB	Output is correct
30	Correct	4 ms	5196 KB	Output is correct
31	Correct	4 ms	5096 KB	Output is correct
32	Correct	5 ms	5032 KB	Output is correct
33	Correct	5 ms	5068 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	4 ms	5068 KB	Output is correct
36	Correct	4 ms	5064 KB	Output is correct
37	Correct	4 ms	5068 KB	Output is correct
38	Correct	4 ms	5068 KB	Output is correct
39	Correct	4 ms	5156 KB	Output is correct
40	Correct	4 ms	5068 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	5076 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	5 ms	5028 KB	Output is correct
53	Correct	5 ms	5068 KB	Output is correct
54	Correct	4 ms	5068 KB	Output is correct
55	Correct	4 ms	5120 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	5028 KB	Output is correct
59	Correct	4 ms	5048 KB	Output is correct
60	Correct	4 ms	5068 KB	Output is correct
61	Correct	4 ms	5068 KB	Output is correct
62	Correct	4 ms	5164 KB	Output is correct
63	Correct	4 ms	5068 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	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	5016 KB	Output is correct
8	Correct	3 ms	5012 KB	Output is correct
9	Correct	3 ms	5012 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	4940 KB	Output is correct
13	Correct	4 ms	5016 KB	Output is correct
14	Correct	3 ms	5016 KB	Output is correct
15	Correct	3 ms	4940 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	5016 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	5028 KB	Output is correct
25	Correct	4 ms	5068 KB	Output is correct
26	Correct	4 ms	5068 KB	Output is correct
27	Correct	4 ms	5020 KB	Output is correct
28	Correct	4 ms	5068 KB	Output is correct
29	Correct	4 ms	5156 KB	Output is correct
30	Correct	4 ms	5196 KB	Output is correct
31	Correct	4 ms	5096 KB	Output is correct
32	Correct	5 ms	5032 KB	Output is correct
33	Correct	5 ms	5068 KB	Output is correct
34	Correct	4 ms	5068 KB	Output is correct
35	Correct	4 ms	5068 KB	Output is correct
36	Correct	4 ms	5064 KB	Output is correct
37	Correct	4 ms	5068 KB	Output is correct
38	Correct	4 ms	5068 KB	Output is correct
39	Correct	4 ms	5156 KB	Output is correct
40	Correct	4 ms	5068 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	5076 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	5 ms	5028 KB	Output is correct
53	Correct	5 ms	5068 KB	Output is correct
54	Correct	4 ms	5068 KB	Output is correct
55	Correct	4 ms	5120 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	5028 KB	Output is correct
59	Correct	4 ms	5048 KB	Output is correct
60	Correct	4 ms	5068 KB	Output is correct
61	Correct	4 ms	5068 KB	Output is correct
62	Correct	4 ms	5164 KB	Output is correct
63	Correct	4 ms	5068 KB	Output is correct
64	Correct	149 ms	15096 KB	Output is correct
65	Correct	147 ms	15364 KB	Output is correct
66	Correct	157 ms	15080 KB	Output is correct
67	Correct	139 ms	15272 KB	Output is correct
68	Correct	166 ms	15116 KB	Output is correct
69	Correct	161 ms	15124 KB	Output is correct
70	Correct	133 ms	15136 KB	Output is correct
71	Correct	134 ms	15084 KB	Output is correct
72	Correct	135 ms	15104 KB	Output is correct
73	Correct	184 ms	27828 KB	Output is correct
74	Correct	155 ms	27660 KB	Output is correct
75	Correct	133 ms	15060 KB	Output is correct
76	Correct	136 ms	14988 KB	Output is correct
77	Correct	146 ms	15016 KB	Output is correct
78	Correct	133 ms	14976 KB	Output is correct
79	Correct	137 ms	14988 KB	Output is correct
80	Correct	150 ms	15028 KB	Output is correct
81	Correct	123 ms	15516 KB	Output is correct
82	Correct	127 ms	15172 KB	Output is correct
83	Correct	141 ms	20208 KB	Output is correct
84	Correct	144 ms	22364 KB	Output is correct
85	Correct	170 ms	22104 KB	Output is correct
86	Correct	152 ms	16460 KB	Output is correct
87	Correct	138 ms	15924 KB	Output is correct
88	Correct	144 ms	16320 KB	Output is correct
89	Correct	157 ms	16376 KB	Output is correct
90	Correct	126 ms	16196 KB	Output is correct
91	Correct	127 ms	16448 KB	Output is correct
92	Correct	127 ms	16752 KB	Output is correct
93	Correct	165 ms	19112 KB	Output is correct
94	Correct	126 ms	20924 KB	Output is correct
95	Correct	119 ms	19512 KB	Output is correct
96	Correct	132 ms	17788 KB	Output is correct
97	Correct	128 ms	16264 KB	Output is correct
98	Correct	135 ms	15924 KB	Output is correct
99	Correct	131 ms	15452 KB	Output is correct
100	Correct	136 ms	18704 KB	Output is correct
101	Correct	137 ms	16784 KB	Output is correct
102	Correct	124 ms	15956 KB	Output is correct
103	Correct	144 ms	15656 KB	Output is correct
104	Correct	83 ms	16012 KB	Output is correct
105	Correct	160 ms	24612 KB	Output is correct
106	Correct	83 ms	15928 KB	Output is correct
107	Correct	98 ms	15928 KB	Output is correct
108	Correct	157 ms	28556 KB	Output is correct
109	Correct	89 ms	15976 KB	Output is correct
110	Correct	169 ms	28872 KB	Output is correct
111	Correct	128 ms	15092 KB	Output is correct

답안 #465453

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