Submission #1046348

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1046348	2024-08-06T13:20:19 Z	xnqs	Cheap flights (LMIO18_pigus_skrydziai)	C++17	28 / 100	3000 ms	53336 KB

pigus_skrydziai

#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#include <utility>
#include <algorithm>
#include <set>
 
int gs, edg;
std::vector<std::set<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(b,c);
		adj_list[b].emplace(a,c);
		edges.emplace_back(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
	for (const auto& [a, b, c] : edges) {
		int x = a;
		int y = b;
		
		if (adj_list[x].size()>adj_list[y].size()) {
			std::swap(x,y);
		}

		for (const auto& [i, w] : adj_list[x]) {
			auto it = adj_list[y].lower_bound(std::pair<int,int>(i,0));
			if (it!=adj_list[y].end()&&it->first==i) {
				ans = std::max(ans,(int64_t)c+w+it->second);
			}
		}
	}
 
	std::cout << ans << "\n";
}

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 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	54 ms	2456 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	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	2 ms	604 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct

Subtask #2

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 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	54 ms	2456 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	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	2 ms	604 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Execution timed out	3070 ms	53336 KB	Time limit exceeded
23	Halted	0 ms	0 KB	-

Subtask #3

16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	42 ms	30472 KB	Output is correct
2	Correct	157 ms	46236 KB	Output is correct
3	Correct	30 ms	15632 KB	Output is correct
4	Correct	75 ms	30468 KB	Output is correct
5	Correct	206 ms	42748 KB	Output is correct
6	Correct	979 ms	13576 KB	Output is correct
7	Correct	52 ms	39592 KB	Output is correct
8	Correct	62 ms	47104 KB	Output is correct
9	Correct	3 ms	14424 KB	Output is correct
10	Correct	985 ms	13576 KB	Output is correct
11	Correct	101 ms	40448 KB	Output is correct
12	Correct	1474 ms	26724 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	593 ms	10968 KB	Output is correct

Subtask #4

0 / 47.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	42 ms	30472 KB	Output is correct
2	Correct	157 ms	46236 KB	Output is correct
3	Correct	30 ms	15632 KB	Output is correct
4	Correct	75 ms	30468 KB	Output is correct
5	Correct	206 ms	42748 KB	Output is correct
6	Correct	979 ms	13576 KB	Output is correct
7	Correct	52 ms	39592 KB	Output is correct
8	Correct	62 ms	47104 KB	Output is correct
9	Correct	3 ms	14424 KB	Output is correct
10	Correct	985 ms	13576 KB	Output is correct
11	Correct	101 ms	40448 KB	Output is correct
12	Correct	1474 ms	26724 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	593 ms	10968 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 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	54 ms	2456 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	1 ms	348 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	2 ms	604 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct
36	Execution timed out	3070 ms	53336 KB	Time limit exceeded
37	Halted	0 ms	0 KB	-