답안 #399042

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
399042	2021-05-05T07:21:07 Z	prvocislo	꿈 (IOI13_dreaming)	C++17	47 / 100	92 ms	23060 KB

dreaming

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <bitset>
#include"dreaming.h"
typedef long long ll;
using namespace std;

const int maxn = 1e5 + 79, inf = 1e9 + 79;
vector<int> vis(maxn, 0), dp(maxn, 0);
vector<vector<pair<int, int> > > g(maxn);
void dfs1(int u, int p)
{
	vis[u] = 1;
	for (int i = 0; i < g[u].size(); i++) if (g[u][i].first == p) { g[u].erase(g[u].begin() + i); break; }
	for (pair<int, int> i : g[u])
	{
		dfs1(i.first, u);
		dp[u] = max(dp[u], dp[i.first] + i.second);
	}
}
void dfs2(int u, int dist, int &mini, int &dia)
{
	mini = min(mini, max(dist, dp[u]));
	vector<int> pf(g[u].size() + 1, 0), sf(g[u].size() + 1, 0);
	pair<int, int> p(0, 0);
	for (int i = 0; i < g[u].size(); i++)
	{
		int di = dp[g[u][i].first] + g[u][i].second; pf[i + 1] = max(pf[i], di);
		if (di > p.first) swap(p.first, p.second), p.first = di;
		else if (di > p.second) p.second = di;
	} 
	dia = max({ dia, p.first + p.second, dp[u] + dist });
	for (int i = g[u].size() - 1; i >= 0; i--)
		sf[i] = max(sf[i + 1], dp[g[u][i].first] + g[u][i].second);
	for (int i = 0; i < g[u].size(); i++)
		dfs2(g[u][i].first, max({ dist, pf[i], sf[i + 1] }) + g[u][i].second, mini, dia);
}
int travelTime(int n, int m, int l, int a[], int b[], int t[])
{
	for (int i = 0; i < m; i++)
		g[a[i]].push_back({ b[i], t[i] }), g[b[i]].push_back({ a[i], t[i] });
	vector<int> v; int ans = 0;
	for (int i = 0; i < n; i++)
		if (!vis[i])
		{
			v.push_back(inf);
			dfs1(i, -1), dfs2(i, 0, v.back(), ans);
		}
	sort(v.begin(), v.end(), greater<int>());
	ans = max(ans, v[0] + l + v[1]);
	if (v.size() > 2) ans = max(ans, v[1] + 2 * l + v[2]);
	return ans;
}

Compilation message

dreaming.cpp: In function 'void dfs1(int, int)':
dreaming.cpp:17:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for (int i = 0; i < g[u].size(); i++) if (g[u][i].first == p) { g[u].erase(g[u].begin() + i); break; }
      |                  ~~^~~~~~~~~~~~~
dreaming.cpp: In function 'void dfs2(int, int, int&, int&)':
dreaming.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for (int i = 0; i < g[u].size(); i++)
      |                  ~~^~~~~~~~~~~~~
dreaming.cpp:38:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for (int i = 0; i < g[u].size(); i++)
      |                  ~~^~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	15224 KB	Output is correct
2	Correct	60 ms	14544 KB	Output is correct
3	Correct	45 ms	14016 KB	Output is correct
4	Correct	10 ms	5068 KB	Output is correct
5	Correct	8 ms	4300 KB	Output is correct
6	Correct	15 ms	5940 KB	Output is correct
7	Correct	2 ms	3404 KB	Output is correct
8	Correct	34 ms	8176 KB	Output is correct
9	Correct	39 ms	11620 KB	Output is correct
10	Correct	3 ms	3532 KB	Output is correct
11	Correct	59 ms	11588 KB	Output is correct
12	Correct	64 ms	13380 KB	Output is correct
13	Correct	3 ms	3532 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3404 KB	Output is correct
2	Correct	2 ms	3404 KB	Output is correct
3	Correct	2 ms	3404 KB	Output is correct
4	Correct	2 ms	3404 KB	Output is correct
5	Correct	2 ms	3404 KB	Output is correct
6	Correct	2 ms	3408 KB	Output is correct
7	Correct	2 ms	3404 KB	Output is correct
8	Correct	3 ms	3404 KB	Output is correct
9	Correct	2 ms	3404 KB	Output is correct
10	Correct	2 ms	3404 KB	Output is correct
11	Correct	2 ms	3404 KB	Output is correct
12	Correct	2 ms	3404 KB	Output is correct
13	Correct	2 ms	3404 KB	Output is correct
14	Correct	2 ms	3404 KB	Output is correct
15	Correct	2 ms	3404 KB	Output is correct
16	Correct	2 ms	3404 KB	Output is correct
17	Correct	2 ms	3404 KB	Output is correct
18	Correct	2 ms	3404 KB	Output is correct
19	Correct	2 ms	3404 KB	Output is correct
20	Correct	2 ms	3404 KB	Output is correct
21	Correct	2 ms	3404 KB	Output is correct
22	Correct	2 ms	3404 KB	Output is correct
23	Correct	2 ms	3404 KB	Output is correct
24	Correct	2 ms	3404 KB	Output is correct
25	Correct	2 ms	3404 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	15224 KB	Output is correct
2	Correct	60 ms	14544 KB	Output is correct
3	Correct	45 ms	14016 KB	Output is correct
4	Correct	10 ms	5068 KB	Output is correct
5	Correct	8 ms	4300 KB	Output is correct
6	Correct	15 ms	5940 KB	Output is correct
7	Correct	2 ms	3404 KB	Output is correct
8	Correct	34 ms	8176 KB	Output is correct
9	Correct	39 ms	11620 KB	Output is correct
10	Correct	3 ms	3532 KB	Output is correct
11	Correct	59 ms	11588 KB	Output is correct
12	Correct	64 ms	13380 KB	Output is correct
13	Correct	3 ms	3532 KB	Output is correct
14	Correct	2 ms	3404 KB	Output is correct
15	Correct	2 ms	3404 KB	Output is correct
16	Correct	2 ms	3404 KB	Output is correct
17	Correct	2 ms	3404 KB	Output is correct
18	Correct	2 ms	3404 KB	Output is correct
19	Correct	2 ms	3408 KB	Output is correct
20	Correct	2 ms	3404 KB	Output is correct
21	Correct	3 ms	3404 KB	Output is correct
22	Correct	2 ms	3404 KB	Output is correct
23	Correct	2 ms	3404 KB	Output is correct
24	Correct	2 ms	3404 KB	Output is correct
25	Correct	2 ms	3404 KB	Output is correct
26	Correct	2 ms	3404 KB	Output is correct
27	Correct	2 ms	3404 KB	Output is correct
28	Correct	2 ms	3404 KB	Output is correct
29	Correct	2 ms	3404 KB	Output is correct
30	Correct	2 ms	3404 KB	Output is correct
31	Correct	2 ms	3404 KB	Output is correct
32	Correct	2 ms	3404 KB	Output is correct
33	Correct	2 ms	3404 KB	Output is correct
34	Correct	2 ms	3404 KB	Output is correct
35	Correct	2 ms	3404 KB	Output is correct
36	Correct	2 ms	3404 KB	Output is correct
37	Correct	2 ms	3404 KB	Output is correct
38	Correct	2 ms	3404 KB	Output is correct
39	Correct	61 ms	15244 KB	Output is correct
40	Correct	64 ms	14656 KB	Output is correct
41	Correct	43 ms	13920 KB	Output is correct
42	Correct	10 ms	5072 KB	Output is correct
43	Correct	3 ms	3452 KB	Output is correct
44	Correct	2 ms	3404 KB	Output is correct
45	Correct	2 ms	3404 KB	Output is correct
46	Correct	2 ms	3404 KB	Output is correct
47	Correct	2 ms	3404 KB	Output is correct
48	Correct	2 ms	3404 KB	Output is correct
49	Correct	2 ms	3404 KB	Output is correct
50	Correct	2 ms	3404 KB	Output is correct
51	Correct	2 ms	3404 KB	Output is correct
52	Correct	2 ms	3404 KB	Output is correct
53	Correct	2 ms	3404 KB	Output is correct
54	Correct	2 ms	3404 KB	Output is correct
55	Correct	2 ms	3404 KB	Output is correct
56	Correct	2 ms	3404 KB	Output is correct
57	Correct	70 ms	8516 KB	Output is correct
58	Correct	71 ms	8516 KB	Output is correct
59	Correct	67 ms	8476 KB	Output is correct
60	Correct	69 ms	8524 KB	Output is correct
61	Correct	68 ms	8388 KB	Output is correct
62	Correct	68 ms	8388 KB	Output is correct
63	Correct	66 ms	8196 KB	Output is correct
64	Correct	69 ms	8260 KB	Output is correct
65	Correct	66 ms	8260 KB	Output is correct
66	Correct	67 ms	8280 KB	Output is correct
67	Correct	71 ms	8496 KB	Output is correct
68	Correct	68 ms	8516 KB	Output is correct
69	Correct	72 ms	8516 KB	Output is correct
70	Correct	74 ms	8428 KB	Output is correct
71	Correct	3 ms	3404 KB	Output is correct
72	Correct	4 ms	3536 KB	Output is correct
73	Correct	4 ms	3532 KB	Output is correct
74	Correct	4 ms	3532 KB	Output is correct
75	Correct	5 ms	3532 KB	Output is correct
76	Correct	4 ms	3532 KB	Output is correct
77	Correct	4 ms	3532 KB	Output is correct
78	Correct	4 ms	3532 KB	Output is correct
79	Correct	4 ms	3532 KB	Output is correct
80	Correct	70 ms	8496 KB	Output is correct
81	Correct	76 ms	8416 KB	Output is correct
82	Correct	67 ms	8388 KB	Output is correct
83	Correct	73 ms	8388 KB	Output is correct
84	Correct	3 ms	3532 KB	Output is correct
85	Correct	3 ms	3532 KB	Output is correct
86	Correct	4 ms	3532 KB	Output is correct
87	Correct	4 ms	3532 KB	Output is correct
88	Correct	4 ms	3532 KB	Output is correct
89	Correct	4 ms	3532 KB	Output is correct
90	Correct	4 ms	3532 KB	Output is correct
91	Correct	4 ms	3532 KB	Output is correct
92	Correct	4 ms	3532 KB	Output is correct
93	Correct	3 ms	3532 KB	Output is correct
94	Correct	2 ms	3404 KB	Output is correct
95	Correct	3 ms	3404 KB	Output is correct
96	Correct	3 ms	3404 KB	Output is correct
97	Correct	3 ms	3404 KB	Output is correct
98	Correct	2 ms	3404 KB	Output is correct
99	Correct	2 ms	3404 KB	Output is correct
100	Correct	2 ms	3404 KB	Output is correct
101	Correct	2 ms	3408 KB	Output is correct
102	Correct	2 ms	3404 KB	Output is correct
103	Correct	2 ms	3404 KB	Output is correct
104	Correct	8 ms	4300 KB	Output is correct
105	Correct	15 ms	5964 KB	Output is correct
106	Correct	3 ms	3404 KB	Output is correct
107	Correct	28 ms	8136 KB	Output is correct
108	Correct	38 ms	11568 KB	Output is correct
109	Correct	3 ms	3532 KB	Output is correct
110	Correct	54 ms	11552 KB	Output is correct
111	Correct	63 ms	13364 KB	Output is correct
112	Correct	3 ms	3532 KB	Output is correct
113	Correct	92 ms	23060 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	6096 KB	Output is correct
2	Correct	26 ms	6516 KB	Output is correct
3	Correct	27 ms	6448 KB	Output is correct
4	Correct	28 ms	6492 KB	Output is correct
5	Correct	29 ms	6476 KB	Output is correct
6	Correct	30 ms	6964 KB	Output is correct
7	Correct	28 ms	6608 KB	Output is correct
8	Correct	27 ms	6524 KB	Output is correct
9	Correct	27 ms	6476 KB	Output is correct
10	Correct	28 ms	6628 KB	Output is correct
11	Correct	2 ms	3460 KB	Output is correct
12	Correct	9 ms	4040 KB	Output is correct
13	Correct	9 ms	4040 KB	Output is correct
14	Correct	9 ms	4040 KB	Output is correct
15	Correct	9 ms	4044 KB	Output is correct
16	Correct	9 ms	4040 KB	Output is correct
17	Correct	9 ms	4040 KB	Output is correct
18	Correct	9 ms	4040 KB	Output is correct
19	Correct	11 ms	4040 KB	Output is correct
20	Incorrect	2 ms	3404 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3404 KB	Output is correct
2	Correct	2 ms	3404 KB	Output is correct
3	Correct	2 ms	3404 KB	Output is correct
4	Correct	2 ms	3404 KB	Output is correct
5	Correct	2 ms	3404 KB	Output is correct
6	Correct	2 ms	3408 KB	Output is correct
7	Correct	2 ms	3404 KB	Output is correct
8	Correct	3 ms	3404 KB	Output is correct
9	Correct	2 ms	3404 KB	Output is correct
10	Correct	2 ms	3404 KB	Output is correct
11	Correct	2 ms	3404 KB	Output is correct
12	Correct	2 ms	3404 KB	Output is correct
13	Correct	2 ms	3404 KB	Output is correct
14	Correct	2 ms	3404 KB	Output is correct
15	Correct	2 ms	3404 KB	Output is correct
16	Correct	2 ms	3404 KB	Output is correct
17	Correct	2 ms	3404 KB	Output is correct
18	Correct	2 ms	3404 KB	Output is correct
19	Correct	2 ms	3404 KB	Output is correct
20	Correct	2 ms	3404 KB	Output is correct
21	Correct	2 ms	3404 KB	Output is correct
22	Correct	2 ms	3404 KB	Output is correct
23	Correct	2 ms	3404 KB	Output is correct
24	Correct	2 ms	3404 KB	Output is correct
25	Correct	2 ms	3404 KB	Output is correct
26	Correct	3 ms	3404 KB	Output is correct
27	Correct	3 ms	3532 KB	Output is correct
28	Correct	3 ms	3532 KB	Output is correct
29	Correct	3 ms	3404 KB	Output is correct
30	Correct	3 ms	3532 KB	Output is correct
31	Correct	4 ms	3592 KB	Output is correct
32	Correct	3 ms	3404 KB	Output is correct
33	Correct	4 ms	3532 KB	Output is correct
34	Correct	4 ms	3532 KB	Output is correct
35	Correct	2 ms	3404 KB	Output is correct
36	Correct	2 ms	3404 KB	Output is correct
37	Correct	3 ms	3404 KB	Output is correct
38	Correct	2 ms	3444 KB	Output is correct
39	Correct	2 ms	3452 KB	Output is correct
40	Correct	3 ms	3404 KB	Output is correct
41	Correct	2 ms	3404 KB	Output is correct
42	Correct	2 ms	3456 KB	Output is correct
43	Correct	3 ms	3404 KB	Output is correct
44	Correct	2 ms	3404 KB	Output is correct
45	Correct	2 ms	3404 KB	Output is correct
46	Correct	2 ms	3404 KB	Output is correct
47	Correct	2 ms	3448 KB	Output is correct
48	Correct	2 ms	3448 KB	Output is correct
49	Correct	2 ms	3460 KB	Output is correct
50	Correct	3 ms	3404 KB	Output is correct
51	Correct	3 ms	3404 KB	Output is correct
52	Incorrect	2 ms	3404 KB	Output isn't correct
53	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	15224 KB	Output is correct
2	Correct	60 ms	14544 KB	Output is correct
3	Correct	45 ms	14016 KB	Output is correct
4	Correct	10 ms	5068 KB	Output is correct
5	Correct	8 ms	4300 KB	Output is correct
6	Correct	15 ms	5940 KB	Output is correct
7	Correct	2 ms	3404 KB	Output is correct
8	Correct	34 ms	8176 KB	Output is correct
9	Correct	39 ms	11620 KB	Output is correct
10	Correct	3 ms	3532 KB	Output is correct
11	Correct	59 ms	11588 KB	Output is correct
12	Correct	64 ms	13380 KB	Output is correct
13	Correct	3 ms	3532 KB	Output is correct
14	Correct	2 ms	3404 KB	Output is correct
15	Correct	2 ms	3404 KB	Output is correct
16	Correct	2 ms	3404 KB	Output is correct
17	Correct	2 ms	3404 KB	Output is correct
18	Correct	2 ms	3404 KB	Output is correct
19	Correct	2 ms	3408 KB	Output is correct
20	Correct	2 ms	3404 KB	Output is correct
21	Correct	3 ms	3404 KB	Output is correct
22	Correct	2 ms	3404 KB	Output is correct
23	Correct	2 ms	3404 KB	Output is correct
24	Correct	2 ms	3404 KB	Output is correct
25	Correct	2 ms	3404 KB	Output is correct
26	Correct	2 ms	3404 KB	Output is correct
27	Correct	2 ms	3404 KB	Output is correct
28	Correct	2 ms	3404 KB	Output is correct
29	Correct	2 ms	3404 KB	Output is correct
30	Correct	2 ms	3404 KB	Output is correct
31	Correct	2 ms	3404 KB	Output is correct
32	Correct	2 ms	3404 KB	Output is correct
33	Correct	2 ms	3404 KB	Output is correct
34	Correct	2 ms	3404 KB	Output is correct
35	Correct	2 ms	3404 KB	Output is correct
36	Correct	2 ms	3404 KB	Output is correct
37	Correct	2 ms	3404 KB	Output is correct
38	Correct	2 ms	3404 KB	Output is correct
39	Correct	61 ms	15244 KB	Output is correct
40	Correct	64 ms	14656 KB	Output is correct
41	Correct	43 ms	13920 KB	Output is correct
42	Correct	10 ms	5072 KB	Output is correct
43	Correct	3 ms	3452 KB	Output is correct
44	Correct	2 ms	3404 KB	Output is correct
45	Correct	2 ms	3404 KB	Output is correct
46	Correct	2 ms	3404 KB	Output is correct
47	Correct	2 ms	3404 KB	Output is correct
48	Correct	2 ms	3404 KB	Output is correct
49	Correct	2 ms	3404 KB	Output is correct
50	Correct	2 ms	3404 KB	Output is correct
51	Correct	2 ms	3404 KB	Output is correct
52	Correct	2 ms	3404 KB	Output is correct
53	Correct	2 ms	3404 KB	Output is correct
54	Correct	2 ms	3404 KB	Output is correct
55	Correct	2 ms	3404 KB	Output is correct
56	Correct	2 ms	3404 KB	Output is correct
57	Correct	70 ms	8516 KB	Output is correct
58	Correct	71 ms	8516 KB	Output is correct
59	Correct	67 ms	8476 KB	Output is correct
60	Correct	69 ms	8524 KB	Output is correct
61	Correct	68 ms	8388 KB	Output is correct
62	Correct	68 ms	8388 KB	Output is correct
63	Correct	66 ms	8196 KB	Output is correct
64	Correct	69 ms	8260 KB	Output is correct
65	Correct	66 ms	8260 KB	Output is correct
66	Correct	67 ms	8280 KB	Output is correct
67	Correct	71 ms	8496 KB	Output is correct
68	Correct	68 ms	8516 KB	Output is correct
69	Correct	72 ms	8516 KB	Output is correct
70	Correct	74 ms	8428 KB	Output is correct
71	Correct	3 ms	3404 KB	Output is correct
72	Correct	4 ms	3536 KB	Output is correct
73	Correct	4 ms	3532 KB	Output is correct
74	Correct	4 ms	3532 KB	Output is correct
75	Correct	5 ms	3532 KB	Output is correct
76	Correct	4 ms	3532 KB	Output is correct
77	Correct	4 ms	3532 KB	Output is correct
78	Correct	4 ms	3532 KB	Output is correct
79	Correct	4 ms	3532 KB	Output is correct
80	Correct	70 ms	8496 KB	Output is correct
81	Correct	76 ms	8416 KB	Output is correct
82	Correct	67 ms	8388 KB	Output is correct
83	Correct	73 ms	8388 KB	Output is correct
84	Correct	3 ms	3532 KB	Output is correct
85	Correct	3 ms	3532 KB	Output is correct
86	Correct	4 ms	3532 KB	Output is correct
87	Correct	4 ms	3532 KB	Output is correct
88	Correct	4 ms	3532 KB	Output is correct
89	Correct	4 ms	3532 KB	Output is correct
90	Correct	4 ms	3532 KB	Output is correct
91	Correct	4 ms	3532 KB	Output is correct
92	Correct	4 ms	3532 KB	Output is correct
93	Correct	3 ms	3532 KB	Output is correct
94	Correct	2 ms	3404 KB	Output is correct
95	Correct	3 ms	3404 KB	Output is correct
96	Correct	3 ms	3404 KB	Output is correct
97	Correct	3 ms	3404 KB	Output is correct
98	Correct	2 ms	3404 KB	Output is correct
99	Correct	2 ms	3404 KB	Output is correct
100	Correct	2 ms	3404 KB	Output is correct
101	Correct	2 ms	3408 KB	Output is correct
102	Correct	2 ms	3404 KB	Output is correct
103	Correct	2 ms	3404 KB	Output is correct
104	Correct	8 ms	4300 KB	Output is correct
105	Correct	15 ms	5964 KB	Output is correct
106	Correct	3 ms	3404 KB	Output is correct
107	Correct	28 ms	8136 KB	Output is correct
108	Correct	38 ms	11568 KB	Output is correct
109	Correct	3 ms	3532 KB	Output is correct
110	Correct	54 ms	11552 KB	Output is correct
111	Correct	63 ms	13364 KB	Output is correct
112	Correct	3 ms	3532 KB	Output is correct
113	Correct	92 ms	23060 KB	Output is correct
114	Correct	26 ms	6096 KB	Output is correct
115	Correct	26 ms	6516 KB	Output is correct
116	Correct	27 ms	6448 KB	Output is correct
117	Correct	28 ms	6492 KB	Output is correct
118	Correct	29 ms	6476 KB	Output is correct
119	Correct	30 ms	6964 KB	Output is correct
120	Correct	28 ms	6608 KB	Output is correct
121	Correct	27 ms	6524 KB	Output is correct
122	Correct	27 ms	6476 KB	Output is correct
123	Correct	28 ms	6628 KB	Output is correct
124	Correct	2 ms	3460 KB	Output is correct
125	Correct	9 ms	4040 KB	Output is correct
126	Correct	9 ms	4040 KB	Output is correct
127	Correct	9 ms	4040 KB	Output is correct
128	Correct	9 ms	4044 KB	Output is correct
129	Correct	9 ms	4040 KB	Output is correct
130	Correct	9 ms	4040 KB	Output is correct
131	Correct	9 ms	4040 KB	Output is correct
132	Correct	11 ms	4040 KB	Output is correct
133	Incorrect	2 ms	3404 KB	Output isn't correct
134	Halted	0 ms	0 KB	-

답안 #399042

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