답안 #306501

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
306501	2020-09-25T17:53:38 Z	tengiz05	꿈 (IOI13_dreaming)	C++17	47 / 100	198 ms	22136 KB

dreaming

#include "dreaming.h"
#include <bits/stdc++.h>
using namespace std;
int n;
const int N = 1e5+5;
bool used[N];
int depth[N];
int dp[N];
vector<pair<int, int>> edges[N];
vector<int> a[N];
// dfs for calculating dp. (dp[i] - maximum depth)
void dfs(int u, int p){
	used[u] = true;
	dp[u] = 0;
	a[u].push_back(0);a[u].push_back(0);
	for(auto X : edges[u]){
		int v = X.first;
		int cost = X.second;
		if(v == p)continue;
		dfs(v, u);
		dp[u] = max(dp[u], dp[v]+cost);
		a[u].push_back(dp[v]+cost);
	}
	sort(a[u].begin(), a[u].end());
	reverse(a[u].begin(), a[u].end());
}
 
//dfs for rerooting
int mn;
void dfs2(int u, int p, int T){
	int dpu = dp[u];
	for(auto X : edges[u]){
		int v = X.first;
		int cost = X.second;
		if(v == p)continue;
		int tmp = dp[v];
		if(dp[v]+cost == a[u][0])dp[u] = a[u][1];
		if(u != p)dp[u] = max(dp[u], dp[p] + T);
		dp[v] = max(dp[v], dp[u] + cost);
		mn = min(mn, dp[v]);
		dfs2(v, u, cost);
		dp[v] = tmp;
		dp[u] = dpu;
	}
}
 
//calculate best center for the tree
int calculate_center(int u){
	dfs(u, u);
	mn = dp[u];
	dfs2(u, u ,0);
	return mn;
}
int travelTime(int _N, int M, int L, int A[], int B[], int T[]) {
	n = _N;
	for(int i=0;i<M;i++){
		edges[A[i]].push_back({B[i], T[i]});
		edges[B[i]].push_back({A[i], T[i]});
	}
	vector<int> v;
	for(int i=0;i<n;i++){
		if(!used[i]){
			v.push_back(calculate_center(i));
		}
	}v.push_back(0);
	sort(v.begin(), v.end());
	reverse(v.begin(), v.end());
	if(v.size() == 0){
		return 0;
	}
	else if(v.size() == 1){
		return a[0][0] + a[0][1];
	}
	else {
		int m = 0;
		for(int i=0;i<n;i++){
			m = max(m, a[i][0]+a[i][1]);
		}
		return max(v[0]+v[1]+L, max(m, v[1]+v[2]+L));
	}
}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	96 ms	17016 KB	Output is correct
2	Correct	101 ms	16632 KB	Output is correct
3	Correct	61 ms	14584 KB	Output is correct
4	Correct	14 ms	6816 KB	Output is correct
5	Correct	12 ms	6016 KB	Output is correct
6	Correct	22 ms	7672 KB	Output is correct
7	Correct	4 ms	5120 KB	Output is correct
8	Correct	49 ms	10104 KB	Output is correct
9	Correct	60 ms	12664 KB	Output is correct
10	Correct	4 ms	5120 KB	Output is correct
11	Correct	94 ms	13688 KB	Output is correct
12	Correct	110 ms	15352 KB	Output is correct
13	Correct	5 ms	5120 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	96 ms	17016 KB	Output is correct
2	Correct	101 ms	16632 KB	Output is correct
3	Correct	61 ms	14584 KB	Output is correct
4	Correct	14 ms	6816 KB	Output is correct
5	Correct	12 ms	6016 KB	Output is correct
6	Correct	22 ms	7672 KB	Output is correct
7	Correct	4 ms	5120 KB	Output is correct
8	Correct	49 ms	10104 KB	Output is correct
9	Correct	60 ms	12664 KB	Output is correct
10	Correct	4 ms	5120 KB	Output is correct
11	Correct	94 ms	13688 KB	Output is correct
12	Correct	110 ms	15352 KB	Output is correct
13	Correct	5 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	4 ms	4992 KB	Output is correct
18	Correct	4 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	4 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	4 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	3 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	4 ms	4992 KB	Output is correct
28	Correct	3 ms	4992 KB	Output is correct
29	Correct	4 ms	4992 KB	Output is correct
30	Correct	4 ms	4992 KB	Output is correct
31	Correct	4 ms	4992 KB	Output is correct
32	Correct	4 ms	4992 KB	Output is correct
33	Correct	4 ms	4992 KB	Output is correct
34	Correct	4 ms	4992 KB	Output is correct
35	Correct	4 ms	4992 KB	Output is correct
36	Correct	4 ms	4992 KB	Output is correct
37	Correct	4 ms	4992 KB	Output is correct
38	Correct	4 ms	4992 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	96 ms	17016 KB	Output is correct
2	Correct	101 ms	16632 KB	Output is correct
3	Correct	61 ms	14584 KB	Output is correct
4	Correct	14 ms	6816 KB	Output is correct
5	Correct	12 ms	6016 KB	Output is correct
6	Correct	22 ms	7672 KB	Output is correct
7	Correct	4 ms	5120 KB	Output is correct
8	Correct	49 ms	10104 KB	Output is correct
9	Correct	60 ms	12664 KB	Output is correct
10	Correct	4 ms	5120 KB	Output is correct
11	Correct	94 ms	13688 KB	Output is correct
12	Correct	110 ms	15352 KB	Output is correct
13	Correct	5 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	4 ms	4992 KB	Output is correct
18	Correct	4 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	4 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	4 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	3 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	4 ms	4992 KB	Output is correct
28	Correct	3 ms	4992 KB	Output is correct
29	Correct	4 ms	4992 KB	Output is correct
30	Correct	4 ms	4992 KB	Output is correct
31	Correct	4 ms	4992 KB	Output is correct
32	Correct	4 ms	4992 KB	Output is correct
33	Correct	4 ms	4992 KB	Output is correct
34	Correct	4 ms	4992 KB	Output is correct
35	Correct	4 ms	4992 KB	Output is correct
36	Correct	4 ms	4992 KB	Output is correct
37	Correct	4 ms	4992 KB	Output is correct
38	Correct	4 ms	4992 KB	Output is correct
39	Correct	98 ms	16964 KB	Output is correct
40	Correct	94 ms	16632 KB	Output is correct
41	Correct	72 ms	14584 KB	Output is correct
42	Correct	14 ms	6784 KB	Output is correct
43	Correct	4 ms	4992 KB	Output is correct
44	Correct	4 ms	4992 KB	Output is correct
45	Correct	4 ms	4992 KB	Output is correct
46	Correct	4 ms	4992 KB	Output is correct
47	Correct	4 ms	4992 KB	Output is correct
48	Correct	3 ms	4992 KB	Output is correct
49	Correct	3 ms	4992 KB	Output is correct
50	Correct	4 ms	4992 KB	Output is correct
51	Correct	4 ms	4992 KB	Output is correct
52	Correct	4 ms	4992 KB	Output is correct
53	Correct	4 ms	4992 KB	Output is correct
54	Correct	5 ms	4992 KB	Output is correct
55	Correct	4 ms	4992 KB	Output is correct
56	Correct	5 ms	4992 KB	Output is correct
57	Correct	128 ms	13432 KB	Output is correct
58	Correct	132 ms	13560 KB	Output is correct
59	Correct	132 ms	13720 KB	Output is correct
60	Correct	129 ms	13560 KB	Output is correct
61	Correct	133 ms	13700 KB	Output is correct
62	Correct	129 ms	13816 KB	Output is correct
63	Correct	127 ms	13652 KB	Output is correct
64	Correct	126 ms	13688 KB	Output is correct
65	Correct	129 ms	13688 KB	Output is correct
66	Correct	135 ms	13688 KB	Output is correct
67	Correct	132 ms	13560 KB	Output is correct
68	Correct	135 ms	13560 KB	Output is correct
69	Correct	137 ms	13560 KB	Output is correct
70	Correct	143 ms	13560 KB	Output is correct
71	Correct	4 ms	4992 KB	Output is correct
72	Correct	6 ms	5248 KB	Output is correct
73	Correct	6 ms	5248 KB	Output is correct
74	Correct	6 ms	5248 KB	Output is correct
75	Correct	6 ms	5248 KB	Output is correct
76	Correct	6 ms	5248 KB	Output is correct
77	Correct	6 ms	5248 KB	Output is correct
78	Correct	6 ms	5248 KB	Output is correct
79	Correct	6 ms	5248 KB	Output is correct
80	Correct	149 ms	13564 KB	Output is correct
81	Correct	132 ms	13560 KB	Output is correct
82	Correct	128 ms	13732 KB	Output is correct
83	Correct	128 ms	13688 KB	Output is correct
84	Correct	5 ms	5248 KB	Output is correct
85	Correct	5 ms	5248 KB	Output is correct
86	Correct	5 ms	5248 KB	Output is correct
87	Correct	5 ms	5248 KB	Output is correct
88	Correct	5 ms	5248 KB	Output is correct
89	Correct	6 ms	5248 KB	Output is correct
90	Correct	6 ms	5308 KB	Output is correct
91	Correct	6 ms	5248 KB	Output is correct
92	Correct	6 ms	5248 KB	Output is correct
93	Correct	5 ms	5248 KB	Output is correct
94	Correct	4 ms	4992 KB	Output is correct
95	Correct	4 ms	4992 KB	Output is correct
96	Correct	4 ms	4992 KB	Output is correct
97	Correct	4 ms	5120 KB	Output is correct
98	Correct	4 ms	5120 KB	Output is correct
99	Correct	4 ms	4992 KB	Output is correct
100	Correct	3 ms	4992 KB	Output is correct
101	Correct	4 ms	4992 KB	Output is correct
102	Correct	4 ms	4992 KB	Output is correct
103	Correct	4 ms	4992 KB	Output is correct
104	Correct	12 ms	6144 KB	Output is correct
105	Correct	22 ms	7672 KB	Output is correct
106	Correct	4 ms	5120 KB	Output is correct
107	Correct	43 ms	9984 KB	Output is correct
108	Correct	57 ms	12664 KB	Output is correct
109	Correct	4 ms	5120 KB	Output is correct
110	Correct	92 ms	13688 KB	Output is correct
111	Correct	108 ms	15224 KB	Output is correct
112	Correct	4 ms	5120 KB	Output is correct
113	Correct	198 ms	22136 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	49 ms	11000 KB	Output is correct
2	Incorrect	49 ms	10996 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	96 ms	17016 KB	Output is correct
2	Correct	101 ms	16632 KB	Output is correct
3	Correct	61 ms	14584 KB	Output is correct
4	Correct	14 ms	6816 KB	Output is correct
5	Correct	12 ms	6016 KB	Output is correct
6	Correct	22 ms	7672 KB	Output is correct
7	Correct	4 ms	5120 KB	Output is correct
8	Correct	49 ms	10104 KB	Output is correct
9	Correct	60 ms	12664 KB	Output is correct
10	Correct	4 ms	5120 KB	Output is correct
11	Correct	94 ms	13688 KB	Output is correct
12	Correct	110 ms	15352 KB	Output is correct
13	Correct	5 ms	5120 KB	Output is correct
14	Correct	4 ms	5120 KB	Output is correct
15	Correct	5 ms	5248 KB	Output is correct
16	Correct	6 ms	5248 KB	Output is correct
17	Correct	4 ms	5120 KB	Output is correct
18	Correct	5 ms	5248 KB	Output is correct
19	Correct	5 ms	5248 KB	Output is correct
20	Incorrect	4 ms	5120 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	96 ms	17016 KB	Output is correct
2	Correct	101 ms	16632 KB	Output is correct
3	Correct	61 ms	14584 KB	Output is correct
4	Correct	14 ms	6816 KB	Output is correct
5	Correct	12 ms	6016 KB	Output is correct
6	Correct	22 ms	7672 KB	Output is correct
7	Correct	4 ms	5120 KB	Output is correct
8	Correct	49 ms	10104 KB	Output is correct
9	Correct	60 ms	12664 KB	Output is correct
10	Correct	4 ms	5120 KB	Output is correct
11	Correct	94 ms	13688 KB	Output is correct
12	Correct	110 ms	15352 KB	Output is correct
13	Correct	5 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	4 ms	4992 KB	Output is correct
18	Correct	4 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	4 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	4 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	3 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	4 ms	4992 KB	Output is correct
28	Correct	3 ms	4992 KB	Output is correct
29	Correct	4 ms	4992 KB	Output is correct
30	Correct	4 ms	4992 KB	Output is correct
31	Correct	4 ms	4992 KB	Output is correct
32	Correct	4 ms	4992 KB	Output is correct
33	Correct	4 ms	4992 KB	Output is correct
34	Correct	4 ms	4992 KB	Output is correct
35	Correct	4 ms	4992 KB	Output is correct
36	Correct	4 ms	4992 KB	Output is correct
37	Correct	4 ms	4992 KB	Output is correct
38	Correct	4 ms	4992 KB	Output is correct
39	Correct	98 ms	16964 KB	Output is correct
40	Correct	94 ms	16632 KB	Output is correct
41	Correct	72 ms	14584 KB	Output is correct
42	Correct	14 ms	6784 KB	Output is correct
43	Correct	4 ms	4992 KB	Output is correct
44	Correct	4 ms	4992 KB	Output is correct
45	Correct	4 ms	4992 KB	Output is correct
46	Correct	4 ms	4992 KB	Output is correct
47	Correct	4 ms	4992 KB	Output is correct
48	Correct	3 ms	4992 KB	Output is correct
49	Correct	3 ms	4992 KB	Output is correct
50	Correct	4 ms	4992 KB	Output is correct
51	Correct	4 ms	4992 KB	Output is correct
52	Correct	4 ms	4992 KB	Output is correct
53	Correct	4 ms	4992 KB	Output is correct
54	Correct	5 ms	4992 KB	Output is correct
55	Correct	4 ms	4992 KB	Output is correct
56	Correct	5 ms	4992 KB	Output is correct
57	Correct	128 ms	13432 KB	Output is correct
58	Correct	132 ms	13560 KB	Output is correct
59	Correct	132 ms	13720 KB	Output is correct
60	Correct	129 ms	13560 KB	Output is correct
61	Correct	133 ms	13700 KB	Output is correct
62	Correct	129 ms	13816 KB	Output is correct
63	Correct	127 ms	13652 KB	Output is correct
64	Correct	126 ms	13688 KB	Output is correct
65	Correct	129 ms	13688 KB	Output is correct
66	Correct	135 ms	13688 KB	Output is correct
67	Correct	132 ms	13560 KB	Output is correct
68	Correct	135 ms	13560 KB	Output is correct
69	Correct	137 ms	13560 KB	Output is correct
70	Correct	143 ms	13560 KB	Output is correct
71	Correct	4 ms	4992 KB	Output is correct
72	Correct	6 ms	5248 KB	Output is correct
73	Correct	6 ms	5248 KB	Output is correct
74	Correct	6 ms	5248 KB	Output is correct
75	Correct	6 ms	5248 KB	Output is correct
76	Correct	6 ms	5248 KB	Output is correct
77	Correct	6 ms	5248 KB	Output is correct
78	Correct	6 ms	5248 KB	Output is correct
79	Correct	6 ms	5248 KB	Output is correct
80	Correct	149 ms	13564 KB	Output is correct
81	Correct	132 ms	13560 KB	Output is correct
82	Correct	128 ms	13732 KB	Output is correct
83	Correct	128 ms	13688 KB	Output is correct
84	Correct	5 ms	5248 KB	Output is correct
85	Correct	5 ms	5248 KB	Output is correct
86	Correct	5 ms	5248 KB	Output is correct
87	Correct	5 ms	5248 KB	Output is correct
88	Correct	5 ms	5248 KB	Output is correct
89	Correct	6 ms	5248 KB	Output is correct
90	Correct	6 ms	5308 KB	Output is correct
91	Correct	6 ms	5248 KB	Output is correct
92	Correct	6 ms	5248 KB	Output is correct
93	Correct	5 ms	5248 KB	Output is correct
94	Correct	4 ms	4992 KB	Output is correct
95	Correct	4 ms	4992 KB	Output is correct
96	Correct	4 ms	4992 KB	Output is correct
97	Correct	4 ms	5120 KB	Output is correct
98	Correct	4 ms	5120 KB	Output is correct
99	Correct	4 ms	4992 KB	Output is correct
100	Correct	3 ms	4992 KB	Output is correct
101	Correct	4 ms	4992 KB	Output is correct
102	Correct	4 ms	4992 KB	Output is correct
103	Correct	4 ms	4992 KB	Output is correct
104	Correct	12 ms	6144 KB	Output is correct
105	Correct	22 ms	7672 KB	Output is correct
106	Correct	4 ms	5120 KB	Output is correct
107	Correct	43 ms	9984 KB	Output is correct
108	Correct	57 ms	12664 KB	Output is correct
109	Correct	4 ms	5120 KB	Output is correct
110	Correct	92 ms	13688 KB	Output is correct
111	Correct	108 ms	15224 KB	Output is correct
112	Correct	4 ms	5120 KB	Output is correct
113	Correct	198 ms	22136 KB	Output is correct
114	Correct	49 ms	11000 KB	Output is correct
115	Incorrect	49 ms	10996 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #306501

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 10.0 / 10.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 18.0

Subtask #5 0 / 12.0

Subtask #6 0 / 23.0

Subtask #1
14.0 / 14.0

Subtask #2
10.0 / 10.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 18.0

Subtask #5
0 / 12.0

Subtask #6
0 / 23.0