답안 #379948

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
379948	2021-03-19T19:13:59 Z	nikatamliani	Relay Marathon (NOI20_relaymarathon)	C++14	100 / 100	2098 ms	135576 KB

RelayMarathon

#include <bits/stdc++.h>
using namespace std;
int n, m, k;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int rand(int a, int b) {
	return a + (unsigned long long)rng() % (b - a + 1);
}
const int oo = 1e9+10;
int calc(vector<int> &a, vector<int> &b, vector<vector<pair<int, int>>> &edges) {
	priority_queue<pair<int,int>> q;
	for(int x : a) {
		q.push({0, x});
	}
	vector<bool> fix(n), seen(n);
	for(int x : b) {
		fix[x] = 1;
	}
	while(!q.empty()) {
		pair<int,int> p = q.top(); q.pop();
		if(fix[p.second]) return -p.first;
		if(seen[p.second]) continue;
		seen[p.second] = 1;
		for(const pair<int,int> &to : edges[p.second]) {
			if(!seen[to.first]) {
				q.push({p.first - to.second, to.first});
			}
		}
	}
	return oo;
}
int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	cin >> n >> m >> k;
	vector<vector<pair<int, int>>> edges(n);
	for(int i = 0; i < m; ++i) {
		int u, v, w;
		cin >> u >> v >> w; --u, --v; 
		edges[u].push_back({v, w});
		edges[v].push_back({u, w});
	}
	vector<int> special(k);
	for(int &i : special) cin >> i, --i;
	int ans = oo;
	for(clock_t it = clock(); it < 2 * CLOCKS_PER_SEC; it = clock()) {
		shuffle(special.begin(), special.end(), rng);
		vector<int> start[2], end[2];
		for(int i = 0; i < k / 2; ++i) {
			start[rng() & 1].push_back(special[i]);
		}
		for(int i = k / 2; i < k; ++i) {
			end[rng() & 1].push_back(special[i]);
		}
		ans = min(ans, calc(start[0], end[0], edges) + calc(start[1], end[1], edges));
	}
	cout << ans << '\n';
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1999 ms	396 KB	Output is correct
2	Correct	2000 ms	364 KB	Output is correct
3	Correct	2000 ms	396 KB	Output is correct
4	Correct	2000 ms	392 KB	Output is correct
5	Correct	1999 ms	396 KB	Output is correct
6	Correct	2000 ms	388 KB	Output is correct
7	Correct	2000 ms	364 KB	Output is correct
8	Correct	2000 ms	492 KB	Output is correct
9	Correct	1999 ms	396 KB	Output is correct
10	Correct	2000 ms	396 KB	Output is correct
11	Correct	2000 ms	396 KB	Output is correct
12	Correct	1999 ms	396 KB	Output is correct
13	Correct	2000 ms	452 KB	Output is correct
14	Correct	1999 ms	492 KB	Output is correct
15	Correct	1999 ms	456 KB	Output is correct
16	Correct	1999 ms	492 KB	Output is correct
17	Correct	2000 ms	440 KB	Output is correct
18	Correct	1999 ms	396 KB	Output is correct
19	Correct	2000 ms	492 KB	Output is correct
20	Correct	1999 ms	420 KB	Output is correct
21	Correct	2000 ms	440 KB	Output is correct
22	Correct	1999 ms	396 KB	Output is correct
23	Correct	1999 ms	512 KB	Output is correct
24	Correct	1999 ms	364 KB	Output is correct
25	Correct	2000 ms	364 KB	Output is correct
26	Correct	1999 ms	396 KB	Output is correct
27	Correct	2000 ms	396 KB	Output is correct
28	Correct	1999 ms	456 KB	Output is correct
29	Correct	1999 ms	456 KB	Output is correct
30	Correct	2000 ms	468 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1999 ms	396 KB	Output is correct
2	Correct	2000 ms	364 KB	Output is correct
3	Correct	2000 ms	396 KB	Output is correct
4	Correct	2000 ms	392 KB	Output is correct
5	Correct	1999 ms	396 KB	Output is correct
6	Correct	2000 ms	388 KB	Output is correct
7	Correct	2000 ms	364 KB	Output is correct
8	Correct	2000 ms	492 KB	Output is correct
9	Correct	1999 ms	396 KB	Output is correct
10	Correct	2000 ms	396 KB	Output is correct
11	Correct	2000 ms	396 KB	Output is correct
12	Correct	1999 ms	396 KB	Output is correct
13	Correct	2000 ms	452 KB	Output is correct
14	Correct	1999 ms	492 KB	Output is correct
15	Correct	1999 ms	456 KB	Output is correct
16	Correct	1999 ms	492 KB	Output is correct
17	Correct	2000 ms	440 KB	Output is correct
18	Correct	1999 ms	396 KB	Output is correct
19	Correct	2000 ms	492 KB	Output is correct
20	Correct	1999 ms	420 KB	Output is correct
21	Correct	2000 ms	440 KB	Output is correct
22	Correct	1999 ms	396 KB	Output is correct
23	Correct	1999 ms	512 KB	Output is correct
24	Correct	1999 ms	364 KB	Output is correct
25	Correct	2000 ms	364 KB	Output is correct
26	Correct	1999 ms	396 KB	Output is correct
27	Correct	2000 ms	396 KB	Output is correct
28	Correct	1999 ms	456 KB	Output is correct
29	Correct	1999 ms	456 KB	Output is correct
30	Correct	2000 ms	468 KB	Output is correct
31	Correct	2000 ms	428 KB	Output is correct
32	Correct	2000 ms	436 KB	Output is correct
33	Correct	2000 ms	444 KB	Output is correct
34	Correct	1999 ms	424 KB	Output is correct
35	Correct	2000 ms	416 KB	Output is correct
36	Correct	2000 ms	568 KB	Output is correct
37	Correct	2000 ms	652 KB	Output is correct
38	Correct	1999 ms	452 KB	Output is correct
39	Correct	2000 ms	4212 KB	Output is correct
40	Correct	2000 ms	1188 KB	Output is correct
41	Correct	2000 ms	456 KB	Output is correct
42	Correct	2000 ms	1144 KB	Output is correct
43	Correct	2000 ms	532 KB	Output is correct
44	Correct	1999 ms	452 KB	Output is correct
45	Correct	2000 ms	492 KB	Output is correct
46	Correct	2000 ms	3744 KB	Output is correct
47	Correct	2000 ms	832 KB	Output is correct
48	Correct	2000 ms	3552 KB	Output is correct
49	Correct	2000 ms	3720 KB	Output is correct
50	Correct	2000 ms	444 KB	Output is correct
51	Correct	2000 ms	492 KB	Output is correct
52	Correct	2000 ms	492 KB	Output is correct
53	Correct	2000 ms	2340 KB	Output is correct
54	Correct	2000 ms	3748 KB	Output is correct
55	Correct	2000 ms	436 KB	Output is correct
56	Correct	1999 ms	424 KB	Output is correct
57	Correct	1999 ms	444 KB	Output is correct
58	Correct	2001 ms	3664 KB	Output is correct
59	Correct	1999 ms	620 KB	Output is correct
60	Correct	2000 ms	476 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2005 ms	5812 KB	Output is correct
2	Correct	2001 ms	3180 KB	Output is correct
3	Correct	2025 ms	75868 KB	Output is correct
4	Correct	2044 ms	33508 KB	Output is correct
5	Correct	2072 ms	10172 KB	Output is correct
6	Correct	2021 ms	8380 KB	Output is correct
7	Correct	2039 ms	13576 KB	Output is correct
8	Correct	2004 ms	6800 KB	Output is correct
9	Correct	2008 ms	9444 KB	Output is correct
10	Correct	2004 ms	7592 KB	Output is correct
11	Correct	2084 ms	117540 KB	Output is correct
12	Correct	2007 ms	8200 KB	Output is correct
13	Correct	2045 ms	32576 KB	Output is correct
14	Correct	2007 ms	12240 KB	Output is correct
15	Correct	2078 ms	115332 KB	Output is correct
16	Correct	2001 ms	6124 KB	Output is correct
17	Correct	2029 ms	73268 KB	Output is correct
18	Correct	2000 ms	3308 KB	Output is correct
19	Correct	2025 ms	108340 KB	Output is correct
20	Correct	2005 ms	11644 KB	Output is correct
21	Correct	2012 ms	11312 KB	Output is correct
22	Correct	2005 ms	7376 KB	Output is correct
23	Correct	2003 ms	5356 KB	Output is correct
24	Correct	2033 ms	93540 KB	Output is correct
25	Correct	2005 ms	9708 KB	Output is correct
26	Correct	2008 ms	6844 KB	Output is correct
27	Correct	2007 ms	8440 KB	Output is correct
28	Correct	2001 ms	4332 KB	Output is correct
29	Correct	2008 ms	13240 KB	Output is correct
30	Correct	2020 ms	21716 KB	Output is correct

Subtask #4
58.0 / 58.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1999 ms	396 KB	Output is correct
2	Correct	2000 ms	364 KB	Output is correct
3	Correct	2000 ms	396 KB	Output is correct
4	Correct	2000 ms	392 KB	Output is correct
5	Correct	1999 ms	396 KB	Output is correct
6	Correct	2000 ms	388 KB	Output is correct
7	Correct	2000 ms	364 KB	Output is correct
8	Correct	2000 ms	492 KB	Output is correct
9	Correct	1999 ms	396 KB	Output is correct
10	Correct	2000 ms	396 KB	Output is correct
11	Correct	2000 ms	396 KB	Output is correct
12	Correct	1999 ms	396 KB	Output is correct
13	Correct	2000 ms	452 KB	Output is correct
14	Correct	1999 ms	492 KB	Output is correct
15	Correct	1999 ms	456 KB	Output is correct
16	Correct	1999 ms	492 KB	Output is correct
17	Correct	2000 ms	440 KB	Output is correct
18	Correct	1999 ms	396 KB	Output is correct
19	Correct	2000 ms	492 KB	Output is correct
20	Correct	1999 ms	420 KB	Output is correct
21	Correct	2000 ms	440 KB	Output is correct
22	Correct	1999 ms	396 KB	Output is correct
23	Correct	1999 ms	512 KB	Output is correct
24	Correct	1999 ms	364 KB	Output is correct
25	Correct	2000 ms	364 KB	Output is correct
26	Correct	1999 ms	396 KB	Output is correct
27	Correct	2000 ms	396 KB	Output is correct
28	Correct	1999 ms	456 KB	Output is correct
29	Correct	1999 ms	456 KB	Output is correct
30	Correct	2000 ms	468 KB	Output is correct
31	Correct	2000 ms	428 KB	Output is correct
32	Correct	2000 ms	436 KB	Output is correct
33	Correct	2000 ms	444 KB	Output is correct
34	Correct	1999 ms	424 KB	Output is correct
35	Correct	2000 ms	416 KB	Output is correct
36	Correct	2000 ms	568 KB	Output is correct
37	Correct	2000 ms	652 KB	Output is correct
38	Correct	1999 ms	452 KB	Output is correct
39	Correct	2000 ms	4212 KB	Output is correct
40	Correct	2000 ms	1188 KB	Output is correct
41	Correct	2000 ms	456 KB	Output is correct
42	Correct	2000 ms	1144 KB	Output is correct
43	Correct	2000 ms	532 KB	Output is correct
44	Correct	1999 ms	452 KB	Output is correct
45	Correct	2000 ms	492 KB	Output is correct
46	Correct	2000 ms	3744 KB	Output is correct
47	Correct	2000 ms	832 KB	Output is correct
48	Correct	2000 ms	3552 KB	Output is correct
49	Correct	2000 ms	3720 KB	Output is correct
50	Correct	2000 ms	444 KB	Output is correct
51	Correct	2000 ms	492 KB	Output is correct
52	Correct	2000 ms	492 KB	Output is correct
53	Correct	2000 ms	2340 KB	Output is correct
54	Correct	2000 ms	3748 KB	Output is correct
55	Correct	2000 ms	436 KB	Output is correct
56	Correct	1999 ms	424 KB	Output is correct
57	Correct	1999 ms	444 KB	Output is correct
58	Correct	2001 ms	3664 KB	Output is correct
59	Correct	1999 ms	620 KB	Output is correct
60	Correct	2000 ms	476 KB	Output is correct
61	Correct	2005 ms	5812 KB	Output is correct
62	Correct	2001 ms	3180 KB	Output is correct
63	Correct	2025 ms	75868 KB	Output is correct
64	Correct	2044 ms	33508 KB	Output is correct
65	Correct	2072 ms	10172 KB	Output is correct
66	Correct	2021 ms	8380 KB	Output is correct
67	Correct	2039 ms	13576 KB	Output is correct
68	Correct	2004 ms	6800 KB	Output is correct
69	Correct	2008 ms	9444 KB	Output is correct
70	Correct	2004 ms	7592 KB	Output is correct
71	Correct	2084 ms	117540 KB	Output is correct
72	Correct	2007 ms	8200 KB	Output is correct
73	Correct	2045 ms	32576 KB	Output is correct
74	Correct	2007 ms	12240 KB	Output is correct
75	Correct	2078 ms	115332 KB	Output is correct
76	Correct	2001 ms	6124 KB	Output is correct
77	Correct	2029 ms	73268 KB	Output is correct
78	Correct	2000 ms	3308 KB	Output is correct
79	Correct	2025 ms	108340 KB	Output is correct
80	Correct	2005 ms	11644 KB	Output is correct
81	Correct	2012 ms	11312 KB	Output is correct
82	Correct	2005 ms	7376 KB	Output is correct
83	Correct	2003 ms	5356 KB	Output is correct
84	Correct	2033 ms	93540 KB	Output is correct
85	Correct	2005 ms	9708 KB	Output is correct
86	Correct	2008 ms	6844 KB	Output is correct
87	Correct	2007 ms	8440 KB	Output is correct
88	Correct	2001 ms	4332 KB	Output is correct
89	Correct	2008 ms	13240 KB	Output is correct
90	Correct	2020 ms	21716 KB	Output is correct
91	Correct	2017 ms	8888 KB	Output is correct
92	Correct	2033 ms	128008 KB	Output is correct
93	Correct	2009 ms	13648 KB	Output is correct
94	Correct	2021 ms	66816 KB	Output is correct
95	Correct	2001 ms	3308 KB	Output is correct
96	Correct	2001 ms	3436 KB	Output is correct
97	Correct	2016 ms	16384 KB	Output is correct
98	Correct	2005 ms	9072 KB	Output is correct
99	Correct	2005 ms	9876 KB	Output is correct
100	Correct	2039 ms	127780 KB	Output is correct
101	Correct	2020 ms	45248 KB	Output is correct
102	Correct	2027 ms	44704 KB	Output is correct
103	Correct	2098 ms	96124 KB	Output is correct
104	Correct	2029 ms	96692 KB	Output is correct
105	Correct	2009 ms	6864 KB	Output is correct
106	Correct	2063 ms	91172 KB	Output is correct
107	Correct	2017 ms	24008 KB	Output is correct
108	Correct	2009 ms	11856 KB	Output is correct
109	Correct	2001 ms	4716 KB	Output is correct
110	Correct	2004 ms	6380 KB	Output is correct
111	Correct	2013 ms	12280 KB	Output is correct
112	Correct	2065 ms	133880 KB	Output is correct
113	Correct	2088 ms	135576 KB	Output is correct
114	Correct	2040 ms	12724 KB	Output is correct
115	Correct	2050 ms	48636 KB	Output is correct
116	Correct	2054 ms	125652 KB	Output is correct
117	Correct	2075 ms	94464 KB	Output is correct
118	Correct	2037 ms	79376 KB	Output is correct
119	Correct	2036 ms	104328 KB	Output is correct
120	Correct	2024 ms	58208 KB	Output is correct

답안 #379948

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 12.0 / 12.0

Subtask #3 25.0 / 25.0

Subtask #4 58.0 / 58.0

Subtask #1
5.0 / 5.0

Subtask #2
12.0 / 12.0

Subtask #3
25.0 / 25.0

Subtask #4
58.0 / 58.0