Submission #586749

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
586749	2022-06-30T15:59:37 Z	AlperenT	Dreaming (IOI13_dreaming)	C++17	47 / 100	90 ms	15660 KB

dreaming

#include <bits/stdc++.h>
#include "dreaming.h"

using namespace std;

const int N = 1e5 + 5, INF = 1e9 + 5;

int n, m, l, maxdia, ans = INF, dist1[N], dist2[N];

vector<pair<int, int>> tree[N];

vector<int> sets, nodes;

bool vis[N];

pair<int, int> dfs(int v, int p){
	nodes.push_back(v);

	pair<int, int> mx = {0, v};

	for(auto e : tree[v]){
		if(e.first != p){
			pair<int, int> emx = dfs(e.first, v);

			mx = max(mx, {emx.first + e.second, emx.second});
		}
	}

	return mx;
}

void dfs2(int v, int p, int d, int* dist){
	dist[v] = d;

	for(auto e : tree[v]){
		if(e.first != p){
			dfs2(e.first, v, d + e.second, dist);
		}
	}
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]){
	n = N, m = M, l = L;

	for(int i = 0; i < m; i++){
		tree[A[i]].push_back({B[i], T[i]});
		tree[B[i]].push_back({A[i], T[i]});
	}

	for(int v = 0; v < n; v++){
		nodes.clear();

		if(!vis[v]){
			auto p1 = dfs(v, -1);

			int a = p1.second;

			auto p2 = dfs(a, -1);

			int b = p2.second;

			maxdia = max(maxdia, p2.first);

			auto p3 = dfs(b, -1);

			dfs2(a, -1, 0, dist1);
			dfs2(b, -1, 0, dist2);

			int mx = INF;

			for(auto u : nodes) mx = min(mx, max(dist1[u], dist2[u])), vis[u] = true;

			sets.push_back(mx);
		}
	}

	multiset<int> st;

	for(auto x : sets) st.insert(x);
	
	for(auto x : sets){
		st.erase(st.find(x));

		int curans = 0;

		if(st.size() == 0) curans = INF;
		if(st.size() >= 1) curans = max(curans, x + *prev(st.end()) + l);
		if(st.size() >= 2) curans = max(curans, *prev(st.end()) + *prev(prev(st.end())) + 2 * l);

		ans = min(ans, curans);

		st.insert(x);
	}

    return max(ans, maxdia);
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:64:9: warning: variable 'p3' set but not used [-Wunused-but-set-variable]
   64 |    auto p3 = dfs(b, -1);
      |         ^~

Subtask #1
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	58 ms	15660 KB	Output is correct
2	Correct	49 ms	14436 KB	Output is correct
3	Correct	32 ms	10284 KB	Output is correct
4	Correct	9 ms	4436 KB	Output is correct
5	Correct	6 ms	3540 KB	Output is correct
6	Correct	13 ms	5212 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	24 ms	6868 KB	Output is correct
9	Correct	33 ms	8276 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	50 ms	9920 KB	Output is correct
12	Correct	81 ms	12060 KB	Output is correct
13	Correct	2 ms	2764 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2644 KB	Output is correct
2	Correct	1 ms	2644 KB	Output is correct
3	Correct	2 ms	2644 KB	Output is correct
4	Correct	2 ms	2644 KB	Output is correct
5	Correct	1 ms	2644 KB	Output is correct
6	Correct	1 ms	2644 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	1 ms	2644 KB	Output is correct
9	Correct	2 ms	2644 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	1 ms	2644 KB	Output is correct
12	Correct	1 ms	2684 KB	Output is correct
13	Correct	2 ms	2644 KB	Output is correct
14	Correct	2 ms	2644 KB	Output is correct
15	Correct	2 ms	2644 KB	Output is correct
16	Correct	2 ms	2644 KB	Output is correct
17	Correct	1 ms	2644 KB	Output is correct
18	Correct	2 ms	2644 KB	Output is correct
19	Correct	3 ms	2644 KB	Output is correct
20	Correct	1 ms	2644 KB	Output is correct
21	Correct	1 ms	2644 KB	Output is correct
22	Correct	2 ms	2644 KB	Output is correct
23	Correct	2 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2644 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	58 ms	15660 KB	Output is correct
2	Correct	49 ms	14436 KB	Output is correct
3	Correct	32 ms	10284 KB	Output is correct
4	Correct	9 ms	4436 KB	Output is correct
5	Correct	6 ms	3540 KB	Output is correct
6	Correct	13 ms	5212 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	24 ms	6868 KB	Output is correct
9	Correct	33 ms	8276 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	50 ms	9920 KB	Output is correct
12	Correct	81 ms	12060 KB	Output is correct
13	Correct	2 ms	2764 KB	Output is correct
14	Correct	2 ms	2644 KB	Output is correct
15	Correct	1 ms	2644 KB	Output is correct
16	Correct	2 ms	2644 KB	Output is correct
17	Correct	2 ms	2644 KB	Output is correct
18	Correct	1 ms	2644 KB	Output is correct
19	Correct	1 ms	2644 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct
21	Correct	1 ms	2644 KB	Output is correct
22	Correct	2 ms	2644 KB	Output is correct
23	Correct	1 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2684 KB	Output is correct
26	Correct	2 ms	2644 KB	Output is correct
27	Correct	2 ms	2644 KB	Output is correct
28	Correct	2 ms	2644 KB	Output is correct
29	Correct	2 ms	2644 KB	Output is correct
30	Correct	1 ms	2644 KB	Output is correct
31	Correct	2 ms	2644 KB	Output is correct
32	Correct	3 ms	2644 KB	Output is correct
33	Correct	1 ms	2644 KB	Output is correct
34	Correct	1 ms	2644 KB	Output is correct
35	Correct	2 ms	2644 KB	Output is correct
36	Correct	2 ms	2644 KB	Output is correct
37	Correct	1 ms	2644 KB	Output is correct
38	Correct	1 ms	2644 KB	Output is correct
39	Correct	47 ms	14388 KB	Output is correct
40	Correct	52 ms	14360 KB	Output is correct
41	Correct	39 ms	10260 KB	Output is correct
42	Correct	9 ms	4444 KB	Output is correct
43	Correct	2 ms	2644 KB	Output is correct
44	Correct	2 ms	2644 KB	Output is correct
45	Correct	2 ms	2644 KB	Output is correct
46	Correct	1 ms	2644 KB	Output is correct
47	Correct	1 ms	2644 KB	Output is correct
48	Correct	1 ms	2644 KB	Output is correct
49	Correct	1 ms	2644 KB	Output is correct
50	Correct	1 ms	2644 KB	Output is correct
51	Correct	2 ms	2644 KB	Output is correct
52	Correct	1 ms	2644 KB	Output is correct
53	Correct	1 ms	2684 KB	Output is correct
54	Correct	1 ms	2644 KB	Output is correct
55	Correct	2 ms	2644 KB	Output is correct
56	Correct	2 ms	2644 KB	Output is correct
57	Correct	73 ms	9988 KB	Output is correct
58	Correct	67 ms	9408 KB	Output is correct
59	Correct	70 ms	9700 KB	Output is correct
60	Correct	66 ms	9296 KB	Output is correct
61	Correct	64 ms	9668 KB	Output is correct
62	Correct	67 ms	9668 KB	Output is correct
63	Correct	60 ms	9600 KB	Output is correct
64	Correct	60 ms	9628 KB	Output is correct
65	Correct	61 ms	9672 KB	Output is correct
66	Correct	63 ms	9596 KB	Output is correct
67	Correct	70 ms	9892 KB	Output is correct
68	Correct	82 ms	9888 KB	Output is correct
69	Correct	78 ms	9716 KB	Output is correct
70	Correct	77 ms	9324 KB	Output is correct
71	Correct	2 ms	2644 KB	Output is correct
72	Correct	3 ms	2900 KB	Output is correct
73	Correct	3 ms	2900 KB	Output is correct
74	Correct	3 ms	2900 KB	Output is correct
75	Correct	3 ms	2900 KB	Output is correct
76	Correct	3 ms	2900 KB	Output is correct
77	Correct	3 ms	2900 KB	Output is correct
78	Correct	3 ms	2900 KB	Output is correct
79	Correct	3 ms	2900 KB	Output is correct
80	Correct	70 ms	9752 KB	Output is correct
81	Correct	82 ms	9536 KB	Output is correct
82	Correct	74 ms	9668 KB	Output is correct
83	Correct	72 ms	9820 KB	Output is correct
84	Correct	2 ms	2772 KB	Output is correct
85	Correct	3 ms	2772 KB	Output is correct
86	Correct	3 ms	2772 KB	Output is correct
87	Correct	3 ms	2772 KB	Output is correct
88	Correct	3 ms	2808 KB	Output is correct
89	Correct	3 ms	2848 KB	Output is correct
90	Correct	3 ms	2772 KB	Output is correct
91	Correct	3 ms	2900 KB	Output is correct
92	Correct	3 ms	2900 KB	Output is correct
93	Correct	3 ms	2772 KB	Output is correct
94	Correct	2 ms	2644 KB	Output is correct
95	Correct	3 ms	2644 KB	Output is correct
96	Correct	2 ms	2644 KB	Output is correct
97	Correct	2 ms	2644 KB	Output is correct
98	Correct	2 ms	2644 KB	Output is correct
99	Correct	1 ms	2644 KB	Output is correct
100	Correct	2 ms	2644 KB	Output is correct
101	Correct	1 ms	2644 KB	Output is correct
102	Correct	1 ms	2644 KB	Output is correct
103	Correct	1 ms	2644 KB	Output is correct
104	Correct	6 ms	3540 KB	Output is correct
105	Correct	13 ms	5208 KB	Output is correct
106	Correct	1 ms	2644 KB	Output is correct
107	Correct	23 ms	6800 KB	Output is correct
108	Correct	34 ms	8252 KB	Output is correct
109	Correct	3 ms	2644 KB	Output is correct
110	Correct	63 ms	9948 KB	Output is correct
111	Correct	82 ms	11988 KB	Output is correct
112	Correct	3 ms	2772 KB	Output is correct
113	Correct	90 ms	15308 KB	Output is correct

Subtask #4
0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	45 ms	9396 KB	Output is correct
2	Correct	45 ms	9424 KB	Output is correct
3	Correct	44 ms	9296 KB	Output is correct
4	Correct	48 ms	9416 KB	Output is correct
5	Correct	53 ms	9312 KB	Output is correct
6	Correct	63 ms	9792 KB	Output is correct
7	Correct	47 ms	9704 KB	Output is correct
8	Correct	45 ms	9168 KB	Output is correct
9	Correct	43 ms	9144 KB	Output is correct
10	Correct	46 ms	9564 KB	Output is correct
11	Correct	1 ms	2644 KB	Output is correct
12	Correct	37 ms	8584 KB	Output is correct
13	Correct	41 ms	8652 KB	Output is correct
14	Correct	35 ms	8516 KB	Output is correct
15	Correct	35 ms	8620 KB	Output is correct
16	Correct	38 ms	8652 KB	Output is correct
17	Correct	42 ms	8624 KB	Output is correct
18	Correct	36 ms	8592 KB	Output is correct
19	Correct	39 ms	8544 KB	Output is correct
20	Incorrect	1 ms	2644 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2644 KB	Output is correct
2	Correct	1 ms	2644 KB	Output is correct
3	Correct	2 ms	2644 KB	Output is correct
4	Correct	2 ms	2644 KB	Output is correct
5	Correct	1 ms	2644 KB	Output is correct
6	Correct	1 ms	2644 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	1 ms	2644 KB	Output is correct
9	Correct	2 ms	2644 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	1 ms	2644 KB	Output is correct
12	Correct	1 ms	2684 KB	Output is correct
13	Correct	2 ms	2644 KB	Output is correct
14	Correct	2 ms	2644 KB	Output is correct
15	Correct	2 ms	2644 KB	Output is correct
16	Correct	2 ms	2644 KB	Output is correct
17	Correct	1 ms	2644 KB	Output is correct
18	Correct	2 ms	2644 KB	Output is correct
19	Correct	3 ms	2644 KB	Output is correct
20	Correct	1 ms	2644 KB	Output is correct
21	Correct	1 ms	2644 KB	Output is correct
22	Correct	2 ms	2644 KB	Output is correct
23	Correct	2 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2644 KB	Output is correct
26	Correct	2 ms	2644 KB	Output is correct
27	Correct	2 ms	2772 KB	Output is correct
28	Correct	3 ms	2772 KB	Output is correct
29	Correct	2 ms	2736 KB	Output is correct
30	Correct	3 ms	2772 KB	Output is correct
31	Correct	3 ms	2772 KB	Output is correct
32	Correct	2 ms	2644 KB	Output is correct
33	Correct	2 ms	2772 KB	Output is correct
34	Correct	2 ms	2800 KB	Output is correct
35	Correct	1 ms	2644 KB	Output is correct
36	Correct	1 ms	2644 KB	Output is correct
37	Correct	2 ms	2644 KB	Output is correct
38	Correct	1 ms	2644 KB	Output is correct
39	Correct	2 ms	2644 KB	Output is correct
40	Correct	1 ms	2644 KB	Output is correct
41	Correct	1 ms	2644 KB	Output is correct
42	Correct	2 ms	2644 KB	Output is correct
43	Correct	1 ms	2644 KB	Output is correct
44	Correct	2 ms	2644 KB	Output is correct
45	Correct	1 ms	2644 KB	Output is correct
46	Correct	2 ms	2644 KB	Output is correct
47	Correct	1 ms	2644 KB	Output is correct
48	Correct	2 ms	2644 KB	Output is correct
49	Correct	2 ms	2580 KB	Output is correct
50	Correct	1 ms	2644 KB	Output is correct
51	Correct	2 ms	2644 KB	Output is correct
52	Incorrect	2 ms	2644 KB	Output isn't correct
53	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	58 ms	15660 KB	Output is correct
2	Correct	49 ms	14436 KB	Output is correct
3	Correct	32 ms	10284 KB	Output is correct
4	Correct	9 ms	4436 KB	Output is correct
5	Correct	6 ms	3540 KB	Output is correct
6	Correct	13 ms	5212 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	24 ms	6868 KB	Output is correct
9	Correct	33 ms	8276 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	50 ms	9920 KB	Output is correct
12	Correct	81 ms	12060 KB	Output is correct
13	Correct	2 ms	2764 KB	Output is correct
14	Correct	2 ms	2644 KB	Output is correct
15	Correct	1 ms	2644 KB	Output is correct
16	Correct	2 ms	2644 KB	Output is correct
17	Correct	2 ms	2644 KB	Output is correct
18	Correct	1 ms	2644 KB	Output is correct
19	Correct	1 ms	2644 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct
21	Correct	1 ms	2644 KB	Output is correct
22	Correct	2 ms	2644 KB	Output is correct
23	Correct	1 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2684 KB	Output is correct
26	Correct	2 ms	2644 KB	Output is correct
27	Correct	2 ms	2644 KB	Output is correct
28	Correct	2 ms	2644 KB	Output is correct
29	Correct	2 ms	2644 KB	Output is correct
30	Correct	1 ms	2644 KB	Output is correct
31	Correct	2 ms	2644 KB	Output is correct
32	Correct	3 ms	2644 KB	Output is correct
33	Correct	1 ms	2644 KB	Output is correct
34	Correct	1 ms	2644 KB	Output is correct
35	Correct	2 ms	2644 KB	Output is correct
36	Correct	2 ms	2644 KB	Output is correct
37	Correct	1 ms	2644 KB	Output is correct
38	Correct	1 ms	2644 KB	Output is correct
39	Correct	47 ms	14388 KB	Output is correct
40	Correct	52 ms	14360 KB	Output is correct
41	Correct	39 ms	10260 KB	Output is correct
42	Correct	9 ms	4444 KB	Output is correct
43	Correct	2 ms	2644 KB	Output is correct
44	Correct	2 ms	2644 KB	Output is correct
45	Correct	2 ms	2644 KB	Output is correct
46	Correct	1 ms	2644 KB	Output is correct
47	Correct	1 ms	2644 KB	Output is correct
48	Correct	1 ms	2644 KB	Output is correct
49	Correct	1 ms	2644 KB	Output is correct
50	Correct	1 ms	2644 KB	Output is correct
51	Correct	2 ms	2644 KB	Output is correct
52	Correct	1 ms	2644 KB	Output is correct
53	Correct	1 ms	2684 KB	Output is correct
54	Correct	1 ms	2644 KB	Output is correct
55	Correct	2 ms	2644 KB	Output is correct
56	Correct	2 ms	2644 KB	Output is correct
57	Correct	73 ms	9988 KB	Output is correct
58	Correct	67 ms	9408 KB	Output is correct
59	Correct	70 ms	9700 KB	Output is correct
60	Correct	66 ms	9296 KB	Output is correct
61	Correct	64 ms	9668 KB	Output is correct
62	Correct	67 ms	9668 KB	Output is correct
63	Correct	60 ms	9600 KB	Output is correct
64	Correct	60 ms	9628 KB	Output is correct
65	Correct	61 ms	9672 KB	Output is correct
66	Correct	63 ms	9596 KB	Output is correct
67	Correct	70 ms	9892 KB	Output is correct
68	Correct	82 ms	9888 KB	Output is correct
69	Correct	78 ms	9716 KB	Output is correct
70	Correct	77 ms	9324 KB	Output is correct
71	Correct	2 ms	2644 KB	Output is correct
72	Correct	3 ms	2900 KB	Output is correct
73	Correct	3 ms	2900 KB	Output is correct
74	Correct	3 ms	2900 KB	Output is correct
75	Correct	3 ms	2900 KB	Output is correct
76	Correct	3 ms	2900 KB	Output is correct
77	Correct	3 ms	2900 KB	Output is correct
78	Correct	3 ms	2900 KB	Output is correct
79	Correct	3 ms	2900 KB	Output is correct
80	Correct	70 ms	9752 KB	Output is correct
81	Correct	82 ms	9536 KB	Output is correct
82	Correct	74 ms	9668 KB	Output is correct
83	Correct	72 ms	9820 KB	Output is correct
84	Correct	2 ms	2772 KB	Output is correct
85	Correct	3 ms	2772 KB	Output is correct
86	Correct	3 ms	2772 KB	Output is correct
87	Correct	3 ms	2772 KB	Output is correct
88	Correct	3 ms	2808 KB	Output is correct
89	Correct	3 ms	2848 KB	Output is correct
90	Correct	3 ms	2772 KB	Output is correct
91	Correct	3 ms	2900 KB	Output is correct
92	Correct	3 ms	2900 KB	Output is correct
93	Correct	3 ms	2772 KB	Output is correct
94	Correct	2 ms	2644 KB	Output is correct
95	Correct	3 ms	2644 KB	Output is correct
96	Correct	2 ms	2644 KB	Output is correct
97	Correct	2 ms	2644 KB	Output is correct
98	Correct	2 ms	2644 KB	Output is correct
99	Correct	1 ms	2644 KB	Output is correct
100	Correct	2 ms	2644 KB	Output is correct
101	Correct	1 ms	2644 KB	Output is correct
102	Correct	1 ms	2644 KB	Output is correct
103	Correct	1 ms	2644 KB	Output is correct
104	Correct	6 ms	3540 KB	Output is correct
105	Correct	13 ms	5208 KB	Output is correct
106	Correct	1 ms	2644 KB	Output is correct
107	Correct	23 ms	6800 KB	Output is correct
108	Correct	34 ms	8252 KB	Output is correct
109	Correct	3 ms	2644 KB	Output is correct
110	Correct	63 ms	9948 KB	Output is correct
111	Correct	82 ms	11988 KB	Output is correct
112	Correct	3 ms	2772 KB	Output is correct
113	Correct	90 ms	15308 KB	Output is correct
114	Correct	45 ms	9396 KB	Output is correct
115	Correct	45 ms	9424 KB	Output is correct
116	Correct	44 ms	9296 KB	Output is correct
117	Correct	48 ms	9416 KB	Output is correct
118	Correct	53 ms	9312 KB	Output is correct
119	Correct	63 ms	9792 KB	Output is correct
120	Correct	47 ms	9704 KB	Output is correct
121	Correct	45 ms	9168 KB	Output is correct
122	Correct	43 ms	9144 KB	Output is correct
123	Correct	46 ms	9564 KB	Output is correct
124	Correct	1 ms	2644 KB	Output is correct
125	Correct	37 ms	8584 KB	Output is correct
126	Correct	41 ms	8652 KB	Output is correct
127	Correct	35 ms	8516 KB	Output is correct
128	Correct	35 ms	8620 KB	Output is correct
129	Correct	38 ms	8652 KB	Output is correct
130	Correct	42 ms	8624 KB	Output is correct
131	Correct	36 ms	8592 KB	Output is correct
132	Correct	39 ms	8544 KB	Output is correct
133	Incorrect	1 ms	2644 KB	Output isn't correct
134	Halted	0 ms	0 KB	-

Submission #586749

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