답안 #401433

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
401433	2021-05-10T09:19:49 Z	Azimjon	꿈 (IOI13_dreaming)	C++17	47 / 100	100 ms	16708 KB

dreaming

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

using namespace std;

typedef long long ll;

const int UNVISITED = -1;
const int N = 111111;

int finish;
int d[N];
vector<pair<int, int>> g[N];

vector<int> cc, path;

void dfs(int x, int y) {
	cc.push_back(x);
	for (auto [a, b] : g[x]) {
		if (a == y) continue;
		d[a] = d[x] + b;

		dfs(a, x);
	}
}

void dff(int x, int y) {
	if (!path.empty() && path.back() == finish) return;

	path.push_back(x);
	// cout << x << endl;

	if (path.back() == finish) return;

	for (auto [a, b] : g[x]) {
		if (a == y) continue;

		dff(a, x);

		if (path.back() == finish) return;
	}

	path.pop_back();
}

int travelTime(int n, int m, int l, int a[], int b[], int t[]) {
	memset(d, UNVISITED, sizeof(d));

	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> r, di;

	for (int i = 0; i < n; i++) {
		if (d[i] == UNVISITED) {
			cc.clear();
			d[i] = 0;
			dfs(i, N);

			int nu = i;
			for (int x : cc) {
				if (d[x] > d[nu]) nu = x;
			}

			cc.clear();
			d[nu] = 0;
			dfs(nu, N);

			int ku = nu;
			for (int x : cc) {
				if (d[x] > d[ku]) ku = x;
			}

			path.clear();
			finish = ku;
			dff(nu, N);

			int diam = d[ku];

			int centre = 0;
			for (int j = 0; j < (int)path.size(); j++) {
				if (abs(2 * d[path[j]] - diam)
					<= abs(2 * d[path[centre]] - diam)) {
					centre = j;
				}
			}

			centre = path[centre];

			int radius = max(d[centre], diam - d[centre]);
			r.push_back(radius);
			di.push_back(diam);
			/*
						cerr << nu << " " << ku << " " << diam << endl;
						cerr << centre << " " << radius << endl;
						cerr << "=================\n";
						for (int i : path)
							cerr << i << " ";

						cerr << "\n=================\n";
						*/
		}
	}

	sort(r.rbegin(), r.rend());

	if (r.size() == 1) return di[0];

	return max(*max_element(di.begin(), di.end()), r[0] + r[1] + l);
}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	55 ms	15300 KB	Output is correct
2	Correct	58 ms	15360 KB	Output is correct
3	Correct	37 ms	11160 KB	Output is correct
4	Correct	9 ms	5116 KB	Output is correct
5	Correct	8 ms	4252 KB	Output is correct
6	Correct	15 ms	5964 KB	Output is correct
7	Correct	3 ms	3276 KB	Output is correct
8	Correct	27 ms	7424 KB	Output is correct
9	Correct	36 ms	9192 KB	Output is correct
10	Correct	3 ms	3440 KB	Output is correct
11	Correct	51 ms	11032 KB	Output is correct
12	Correct	68 ms	13248 KB	Output is correct
13	Correct	3 ms	3404 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	3276 KB	Output is correct
2	Correct	2 ms	3276 KB	Output is correct
3	Correct	3 ms	3344 KB	Output is correct
4	Correct	2 ms	3276 KB	Output is correct
5	Correct	2 ms	3276 KB	Output is correct
6	Correct	3 ms	3276 KB	Output is correct
7	Correct	3 ms	3276 KB	Output is correct
8	Correct	3 ms	3276 KB	Output is correct
9	Correct	3 ms	3276 KB	Output is correct
10	Correct	3 ms	3300 KB	Output is correct
11	Correct	2 ms	3300 KB	Output is correct
12	Correct	3 ms	3276 KB	Output is correct
13	Correct	2 ms	3276 KB	Output is correct
14	Correct	3 ms	3276 KB	Output is correct
15	Correct	3 ms	3276 KB	Output is correct
16	Correct	3 ms	3276 KB	Output is correct
17	Correct	3 ms	3304 KB	Output is correct
18	Correct	3 ms	3304 KB	Output is correct
19	Correct	3 ms	3276 KB	Output is correct
20	Correct	3 ms	3276 KB	Output is correct
21	Correct	3 ms	3300 KB	Output is correct
22	Correct	3 ms	3276 KB	Output is correct
23	Correct	3 ms	3276 KB	Output is correct
24	Correct	3 ms	3276 KB	Output is correct
25	Correct	3 ms	3276 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	55 ms	15300 KB	Output is correct
2	Correct	58 ms	15360 KB	Output is correct
3	Correct	37 ms	11160 KB	Output is correct
4	Correct	9 ms	5116 KB	Output is correct
5	Correct	8 ms	4252 KB	Output is correct
6	Correct	15 ms	5964 KB	Output is correct
7	Correct	3 ms	3276 KB	Output is correct
8	Correct	27 ms	7424 KB	Output is correct
9	Correct	36 ms	9192 KB	Output is correct
10	Correct	3 ms	3440 KB	Output is correct
11	Correct	51 ms	11032 KB	Output is correct
12	Correct	68 ms	13248 KB	Output is correct
13	Correct	3 ms	3404 KB	Output is correct
14	Correct	3 ms	3276 KB	Output is correct
15	Correct	2 ms	3276 KB	Output is correct
16	Correct	3 ms	3344 KB	Output is correct
17	Correct	2 ms	3276 KB	Output is correct
18	Correct	2 ms	3276 KB	Output is correct
19	Correct	3 ms	3276 KB	Output is correct
20	Correct	3 ms	3276 KB	Output is correct
21	Correct	3 ms	3276 KB	Output is correct
22	Correct	3 ms	3276 KB	Output is correct
23	Correct	3 ms	3300 KB	Output is correct
24	Correct	2 ms	3300 KB	Output is correct
25	Correct	3 ms	3276 KB	Output is correct
26	Correct	2 ms	3276 KB	Output is correct
27	Correct	3 ms	3276 KB	Output is correct
28	Correct	3 ms	3276 KB	Output is correct
29	Correct	3 ms	3276 KB	Output is correct
30	Correct	3 ms	3304 KB	Output is correct
31	Correct	3 ms	3304 KB	Output is correct
32	Correct	3 ms	3276 KB	Output is correct
33	Correct	3 ms	3276 KB	Output is correct
34	Correct	3 ms	3300 KB	Output is correct
35	Correct	3 ms	3276 KB	Output is correct
36	Correct	3 ms	3276 KB	Output is correct
37	Correct	3 ms	3276 KB	Output is correct
38	Correct	3 ms	3276 KB	Output is correct
39	Correct	56 ms	15284 KB	Output is correct
40	Correct	56 ms	15264 KB	Output is correct
41	Correct	38 ms	11240 KB	Output is correct
42	Correct	10 ms	5068 KB	Output is correct
43	Correct	3 ms	3280 KB	Output is correct
44	Correct	3 ms	3304 KB	Output is correct
45	Correct	3 ms	3276 KB	Output is correct
46	Correct	3 ms	3276 KB	Output is correct
47	Correct	3 ms	3312 KB	Output is correct
48	Correct	3 ms	3276 KB	Output is correct
49	Correct	3 ms	3276 KB	Output is correct
50	Correct	3 ms	3276 KB	Output is correct
51	Correct	2 ms	3276 KB	Output is correct
52	Correct	3 ms	3276 KB	Output is correct
53	Correct	2 ms	3300 KB	Output is correct
54	Correct	2 ms	3276 KB	Output is correct
55	Correct	3 ms	3276 KB	Output is correct
56	Correct	3 ms	3276 KB	Output is correct
57	Correct	76 ms	10560 KB	Output is correct
58	Correct	82 ms	10128 KB	Output is correct
59	Correct	69 ms	10400 KB	Output is correct
60	Correct	77 ms	10092 KB	Output is correct
61	Correct	72 ms	10436 KB	Output is correct
62	Correct	76 ms	10260 KB	Output is correct
63	Correct	66 ms	10112 KB	Output is correct
64	Correct	62 ms	10184 KB	Output is correct
65	Correct	64 ms	10432 KB	Output is correct
66	Correct	64 ms	10436 KB	Output is correct
67	Correct	70 ms	10368 KB	Output is correct
68	Correct	74 ms	10304 KB	Output is correct
69	Correct	73 ms	10428 KB	Output is correct
70	Correct	73 ms	10340 KB	Output is correct
71	Correct	2 ms	3280 KB	Output is correct
72	Correct	4 ms	3532 KB	Output is correct
73	Correct	4 ms	3532 KB	Output is correct
74	Correct	4 ms	3532 KB	Output is correct
75	Correct	4 ms	3444 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	73 ms	10304 KB	Output is correct
81	Correct	75 ms	10308 KB	Output is correct
82	Correct	75 ms	10560 KB	Output is correct
83	Correct	72 ms	10420 KB	Output is correct
84	Correct	3 ms	3404 KB	Output is correct
85	Correct	4 ms	3404 KB	Output is correct
86	Correct	4 ms	3404 KB	Output is correct
87	Correct	4 ms	3408 KB	Output is correct
88	Correct	4 ms	3532 KB	Output is correct
89	Correct	4 ms	3404 KB	Output is correct
90	Correct	4 ms	3532 KB	Output is correct
91	Correct	4 ms	3444 KB	Output is correct
92	Correct	4 ms	3440 KB	Output is correct
93	Correct	4 ms	3532 KB	Output is correct
94	Correct	3 ms	3276 KB	Output is correct
95	Correct	3 ms	3276 KB	Output is correct
96	Correct	3 ms	3276 KB	Output is correct
97	Correct	2 ms	3276 KB	Output is correct
98	Correct	3 ms	3276 KB	Output is correct
99	Correct	3 ms	3276 KB	Output is correct
100	Correct	3 ms	3276 KB	Output is correct
101	Correct	3 ms	3276 KB	Output is correct
102	Correct	3 ms	3304 KB	Output is correct
103	Correct	3 ms	3276 KB	Output is correct
104	Correct	8 ms	4280 KB	Output is correct
105	Correct	15 ms	5972 KB	Output is correct
106	Correct	3 ms	3276 KB	Output is correct
107	Correct	27 ms	7400 KB	Output is correct
108	Correct	35 ms	9156 KB	Output is correct
109	Correct	3 ms	3404 KB	Output is correct
110	Correct	53 ms	10948 KB	Output is correct
111	Correct	62 ms	13252 KB	Output is correct
112	Correct	3 ms	3436 KB	Output is correct
113	Correct	100 ms	16708 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	6756 KB	Output is correct
2	Incorrect	25 ms	6728 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	3276 KB	Output is correct
2	Correct	2 ms	3276 KB	Output is correct
3	Correct	3 ms	3344 KB	Output is correct
4	Correct	2 ms	3276 KB	Output is correct
5	Correct	2 ms	3276 KB	Output is correct
6	Correct	3 ms	3276 KB	Output is correct
7	Correct	3 ms	3276 KB	Output is correct
8	Correct	3 ms	3276 KB	Output is correct
9	Correct	3 ms	3276 KB	Output is correct
10	Correct	3 ms	3300 KB	Output is correct
11	Correct	2 ms	3300 KB	Output is correct
12	Correct	3 ms	3276 KB	Output is correct
13	Correct	2 ms	3276 KB	Output is correct
14	Correct	3 ms	3276 KB	Output is correct
15	Correct	3 ms	3276 KB	Output is correct
16	Correct	3 ms	3276 KB	Output is correct
17	Correct	3 ms	3304 KB	Output is correct
18	Correct	3 ms	3304 KB	Output is correct
19	Correct	3 ms	3276 KB	Output is correct
20	Correct	3 ms	3276 KB	Output is correct
21	Correct	3 ms	3300 KB	Output is correct
22	Correct	3 ms	3276 KB	Output is correct
23	Correct	3 ms	3276 KB	Output is correct
24	Correct	3 ms	3276 KB	Output is correct
25	Correct	3 ms	3276 KB	Output is correct
26	Correct	3 ms	3404 KB	Output is correct
27	Correct	3 ms	3404 KB	Output is correct
28	Correct	4 ms	3444 KB	Output is correct
29	Correct	3 ms	3312 KB	Output is correct
30	Correct	3 ms	3404 KB	Output is correct
31	Correct	4 ms	3404 KB	Output is correct
32	Incorrect	3 ms	3404 KB	Output isn't correct
33	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	55 ms	15300 KB	Output is correct
2	Correct	58 ms	15360 KB	Output is correct
3	Correct	37 ms	11160 KB	Output is correct
4	Correct	9 ms	5116 KB	Output is correct
5	Correct	8 ms	4252 KB	Output is correct
6	Correct	15 ms	5964 KB	Output is correct
7	Correct	3 ms	3276 KB	Output is correct
8	Correct	27 ms	7424 KB	Output is correct
9	Correct	36 ms	9192 KB	Output is correct
10	Correct	3 ms	3440 KB	Output is correct
11	Correct	51 ms	11032 KB	Output is correct
12	Correct	68 ms	13248 KB	Output is correct
13	Correct	3 ms	3404 KB	Output is correct
14	Correct	3 ms	3276 KB	Output is correct
15	Correct	2 ms	3276 KB	Output is correct
16	Correct	3 ms	3344 KB	Output is correct
17	Correct	2 ms	3276 KB	Output is correct
18	Correct	2 ms	3276 KB	Output is correct
19	Correct	3 ms	3276 KB	Output is correct
20	Correct	3 ms	3276 KB	Output is correct
21	Correct	3 ms	3276 KB	Output is correct
22	Correct	3 ms	3276 KB	Output is correct
23	Correct	3 ms	3300 KB	Output is correct
24	Correct	2 ms	3300 KB	Output is correct
25	Correct	3 ms	3276 KB	Output is correct
26	Correct	2 ms	3276 KB	Output is correct
27	Correct	3 ms	3276 KB	Output is correct
28	Correct	3 ms	3276 KB	Output is correct
29	Correct	3 ms	3276 KB	Output is correct
30	Correct	3 ms	3304 KB	Output is correct
31	Correct	3 ms	3304 KB	Output is correct
32	Correct	3 ms	3276 KB	Output is correct
33	Correct	3 ms	3276 KB	Output is correct
34	Correct	3 ms	3300 KB	Output is correct
35	Correct	3 ms	3276 KB	Output is correct
36	Correct	3 ms	3276 KB	Output is correct
37	Correct	3 ms	3276 KB	Output is correct
38	Correct	3 ms	3276 KB	Output is correct
39	Correct	56 ms	15284 KB	Output is correct
40	Correct	56 ms	15264 KB	Output is correct
41	Correct	38 ms	11240 KB	Output is correct
42	Correct	10 ms	5068 KB	Output is correct
43	Correct	3 ms	3280 KB	Output is correct
44	Correct	3 ms	3304 KB	Output is correct
45	Correct	3 ms	3276 KB	Output is correct
46	Correct	3 ms	3276 KB	Output is correct
47	Correct	3 ms	3312 KB	Output is correct
48	Correct	3 ms	3276 KB	Output is correct
49	Correct	3 ms	3276 KB	Output is correct
50	Correct	3 ms	3276 KB	Output is correct
51	Correct	2 ms	3276 KB	Output is correct
52	Correct	3 ms	3276 KB	Output is correct
53	Correct	2 ms	3300 KB	Output is correct
54	Correct	2 ms	3276 KB	Output is correct
55	Correct	3 ms	3276 KB	Output is correct
56	Correct	3 ms	3276 KB	Output is correct
57	Correct	76 ms	10560 KB	Output is correct
58	Correct	82 ms	10128 KB	Output is correct
59	Correct	69 ms	10400 KB	Output is correct
60	Correct	77 ms	10092 KB	Output is correct
61	Correct	72 ms	10436 KB	Output is correct
62	Correct	76 ms	10260 KB	Output is correct
63	Correct	66 ms	10112 KB	Output is correct
64	Correct	62 ms	10184 KB	Output is correct
65	Correct	64 ms	10432 KB	Output is correct
66	Correct	64 ms	10436 KB	Output is correct
67	Correct	70 ms	10368 KB	Output is correct
68	Correct	74 ms	10304 KB	Output is correct
69	Correct	73 ms	10428 KB	Output is correct
70	Correct	73 ms	10340 KB	Output is correct
71	Correct	2 ms	3280 KB	Output is correct
72	Correct	4 ms	3532 KB	Output is correct
73	Correct	4 ms	3532 KB	Output is correct
74	Correct	4 ms	3532 KB	Output is correct
75	Correct	4 ms	3444 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	73 ms	10304 KB	Output is correct
81	Correct	75 ms	10308 KB	Output is correct
82	Correct	75 ms	10560 KB	Output is correct
83	Correct	72 ms	10420 KB	Output is correct
84	Correct	3 ms	3404 KB	Output is correct
85	Correct	4 ms	3404 KB	Output is correct
86	Correct	4 ms	3404 KB	Output is correct
87	Correct	4 ms	3408 KB	Output is correct
88	Correct	4 ms	3532 KB	Output is correct
89	Correct	4 ms	3404 KB	Output is correct
90	Correct	4 ms	3532 KB	Output is correct
91	Correct	4 ms	3444 KB	Output is correct
92	Correct	4 ms	3440 KB	Output is correct
93	Correct	4 ms	3532 KB	Output is correct
94	Correct	3 ms	3276 KB	Output is correct
95	Correct	3 ms	3276 KB	Output is correct
96	Correct	3 ms	3276 KB	Output is correct
97	Correct	2 ms	3276 KB	Output is correct
98	Correct	3 ms	3276 KB	Output is correct
99	Correct	3 ms	3276 KB	Output is correct
100	Correct	3 ms	3276 KB	Output is correct
101	Correct	3 ms	3276 KB	Output is correct
102	Correct	3 ms	3304 KB	Output is correct
103	Correct	3 ms	3276 KB	Output is correct
104	Correct	8 ms	4280 KB	Output is correct
105	Correct	15 ms	5972 KB	Output is correct
106	Correct	3 ms	3276 KB	Output is correct
107	Correct	27 ms	7400 KB	Output is correct
108	Correct	35 ms	9156 KB	Output is correct
109	Correct	3 ms	3404 KB	Output is correct
110	Correct	53 ms	10948 KB	Output is correct
111	Correct	62 ms	13252 KB	Output is correct
112	Correct	3 ms	3436 KB	Output is correct
113	Correct	100 ms	16708 KB	Output is correct
114	Correct	25 ms	6756 KB	Output is correct
115	Incorrect	25 ms	6728 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #401433

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