답안 #1046392

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1046392	2024-08-06T13:47:19 Z	xnqs	Cheap flights (LMIO18_pigus_skrydziai)	C++17	100 / 100	145 ms	29696 KB

pigus_skrydziai

#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#include <utility>
#include <algorithm>
#include <set>
#include <unordered_map> 

int gs, edg;
std::vector<std::vector<std::pair<int,int>>> adj_list;
std::vector<std::tuple<int,int,int>> edges;

int main() {
	std::ios_base::sync_with_stdio(false);
	std::cin.tie(NULL);
	std::cout.tie(NULL);
 
	std::cin >> gs >> edg;
	adj_list.resize(gs+1);
 
	for (int i = 0, a, b, c; i < edg; i++) {
		std::cin >> a >> b >> c;
		adj_list[a].emplace_back(b,c);
		adj_list[b].emplace_back(a,c);
		edges.emplace_back(std::min(a,b),std::max(a,b),c);
	}
 
	// try all star graphs
	int64_t ans = 0;
	for (int i = 1; i <= gs; i++) {
		int64_t cand = 0;
		for (const auto& [j, w] : adj_list[i]) {
			cand += w;
		}
		ans = std::max(ans,cand);
	}
 
	// try all "triangle" cycles
	std::sort(edges.begin(),edges.end());
	for (int i = 1; i <= gs; i++) {
		std::sort(adj_list[i].begin(),adj_list[i].end(),[](const std::pair<int,int>& a, const std::pair<int,int>& b) {
			return a.second > b.second;
		});
		if (adj_list[i].size()>=2) {
			auto [a, wa] = adj_list[i][0];
			auto [b, wb] = adj_list[i][1];

			auto it = std::lower_bound(edges.begin(),edges.end(),std::tuple<int,int,int>(std::min(a,b),std::max(a,b),0));
			if (it!=edges.end()&&std::get<0>(*it)==std::min(a,b)&&std::get<1>(*it)==std::max(a,b)) {
				ans = std::max(ans, (int64_t)wa + wb + std::get<2>(*it));
			}
		}
	}
 
	std::cout << ans << "\n";
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	600 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	4 ms	1116 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	404 KB	Output is correct
18	Correct	0 ms	420 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct

Subtask #2
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	600 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	4 ms	1116 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	404 KB	Output is correct
18	Correct	0 ms	420 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	145 ms	17396 KB	Output is correct
23	Correct	110 ms	14432 KB	Output is correct
24	Correct	5 ms	1176 KB	Output is correct
25	Correct	2 ms	604 KB	Output is correct
26	Correct	2 ms	604 KB	Output is correct
27	Correct	1 ms	604 KB	Output is correct
28	Correct	54 ms	8208 KB	Output is correct
29	Correct	20 ms	3856 KB	Output is correct
30	Correct	33 ms	4108 KB	Output is correct
31	Correct	0 ms	344 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	104 ms	16236 KB	Output is correct
34	Correct	70 ms	16384 KB	Output is correct

Subtask #3
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	42 ms	19216 KB	Output is correct
2	Correct	102 ms	24292 KB	Output is correct
3	Correct	31 ms	6928 KB	Output is correct
4	Correct	61 ms	13792 KB	Output is correct
5	Correct	139 ms	21816 KB	Output is correct
6	Correct	16 ms	3964 KB	Output is correct
7	Correct	58 ms	17556 KB	Output is correct
8	Correct	69 ms	22788 KB	Output is correct
9	Correct	2 ms	7512 KB	Output is correct
10	Correct	17 ms	3864 KB	Output is correct
11	Correct	53 ms	19000 KB	Output is correct
12	Correct	33 ms	7424 KB	Output is correct
13	Correct	0 ms	600 KB	Output is correct
14	Correct	21 ms	3860 KB	Output is correct

Subtask #4
47.0 / 47.0

#	결과	실행 시간	메모리	Grader output
1	Correct	42 ms	19216 KB	Output is correct
2	Correct	102 ms	24292 KB	Output is correct
3	Correct	31 ms	6928 KB	Output is correct
4	Correct	61 ms	13792 KB	Output is correct
5	Correct	139 ms	21816 KB	Output is correct
6	Correct	16 ms	3964 KB	Output is correct
7	Correct	58 ms	17556 KB	Output is correct
8	Correct	69 ms	22788 KB	Output is correct
9	Correct	2 ms	7512 KB	Output is correct
10	Correct	17 ms	3864 KB	Output is correct
11	Correct	53 ms	19000 KB	Output is correct
12	Correct	33 ms	7424 KB	Output is correct
13	Correct	0 ms	600 KB	Output is correct
14	Correct	21 ms	3860 KB	Output is correct
15	Correct	1 ms	600 KB	Output is correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	4 ms	1116 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	404 KB	Output is correct
32	Correct	0 ms	420 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	0 ms	344 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct
36	Correct	145 ms	17396 KB	Output is correct
37	Correct	110 ms	14432 KB	Output is correct
38	Correct	5 ms	1176 KB	Output is correct
39	Correct	2 ms	604 KB	Output is correct
40	Correct	2 ms	604 KB	Output is correct
41	Correct	1 ms	604 KB	Output is correct
42	Correct	54 ms	8208 KB	Output is correct
43	Correct	20 ms	3856 KB	Output is correct
44	Correct	33 ms	4108 KB	Output is correct
45	Correct	0 ms	344 KB	Output is correct
46	Correct	0 ms	348 KB	Output is correct
47	Correct	104 ms	16236 KB	Output is correct
48	Correct	70 ms	16384 KB	Output is correct
49	Correct	59 ms	12808 KB	Output is correct
50	Correct	60 ms	11796 KB	Output is correct
51	Correct	71 ms	15360 KB	Output is correct
52	Correct	88 ms	19680 KB	Output is correct
53	Correct	31 ms	10872 KB	Output is correct
54	Correct	74 ms	19448 KB	Output is correct
55	Correct	115 ms	29696 KB	Output is correct
56	Correct	80 ms	18204 KB	Output is correct
57	Correct	72 ms	22900 KB	Output is correct
58	Correct	40 ms	10280 KB	Output is correct
59	Correct	104 ms	20220 KB	Output is correct
60	Correct	83 ms	18692 KB	Output is correct
61	Correct	79 ms	16072 KB	Output is correct

답안 #1046392

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 25.0 / 25.0

Subtask #3 16.0 / 16.0

Subtask #4 47.0 / 47.0

Subtask #1
12.0 / 12.0

Subtask #2
25.0 / 25.0

Subtask #3
16.0 / 16.0

Subtask #4
47.0 / 47.0