#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;
std::unordered_map<int,int> umap[500005];
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(a,b,c);
umap[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
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]) {
if (umap[std::min(y,i)][std::max(y,i)]!=0) {
ans = std::max(ans,(int64_t)c+w+umap[std::min(y,i)][std::max(y,i)]);
}
}
}
std::cout << ans << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
27736 KB |
Output is correct |
2 |
Correct |
5 ms |
27740 KB |
Output is correct |
3 |
Correct |
4 ms |
27740 KB |
Output is correct |
4 |
Correct |
4 ms |
27852 KB |
Output is correct |
5 |
Correct |
5 ms |
27740 KB |
Output is correct |
6 |
Correct |
42 ms |
29336 KB |
Output is correct |
7 |
Correct |
5 ms |
27740 KB |
Output is correct |
8 |
Correct |
4 ms |
27740 KB |
Output is correct |
9 |
Correct |
5 ms |
27740 KB |
Output is correct |
10 |
Correct |
5 ms |
27740 KB |
Output is correct |
11 |
Correct |
5 ms |
27996 KB |
Output is correct |
12 |
Correct |
5 ms |
27740 KB |
Output is correct |
13 |
Correct |
5 ms |
27740 KB |
Output is correct |
14 |
Correct |
4 ms |
27740 KB |
Output is correct |
15 |
Correct |
4 ms |
27784 KB |
Output is correct |
16 |
Correct |
5 ms |
27856 KB |
Output is correct |
17 |
Correct |
5 ms |
27736 KB |
Output is correct |
18 |
Correct |
5 ms |
27996 KB |
Output is correct |
19 |
Correct |
6 ms |
28508 KB |
Output is correct |
20 |
Correct |
5 ms |
27828 KB |
Output is correct |
21 |
Correct |
5 ms |
27736 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
27736 KB |
Output is correct |
2 |
Correct |
5 ms |
27740 KB |
Output is correct |
3 |
Correct |
4 ms |
27740 KB |
Output is correct |
4 |
Correct |
4 ms |
27852 KB |
Output is correct |
5 |
Correct |
5 ms |
27740 KB |
Output is correct |
6 |
Correct |
42 ms |
29336 KB |
Output is correct |
7 |
Correct |
5 ms |
27740 KB |
Output is correct |
8 |
Correct |
4 ms |
27740 KB |
Output is correct |
9 |
Correct |
5 ms |
27740 KB |
Output is correct |
10 |
Correct |
5 ms |
27740 KB |
Output is correct |
11 |
Correct |
5 ms |
27996 KB |
Output is correct |
12 |
Correct |
5 ms |
27740 KB |
Output is correct |
13 |
Correct |
5 ms |
27740 KB |
Output is correct |
14 |
Correct |
4 ms |
27740 KB |
Output is correct |
15 |
Correct |
4 ms |
27784 KB |
Output is correct |
16 |
Correct |
5 ms |
27856 KB |
Output is correct |
17 |
Correct |
5 ms |
27736 KB |
Output is correct |
18 |
Correct |
5 ms |
27996 KB |
Output is correct |
19 |
Correct |
6 ms |
28508 KB |
Output is correct |
20 |
Correct |
5 ms |
27828 KB |
Output is correct |
21 |
Correct |
5 ms |
27736 KB |
Output is correct |
22 |
Runtime error |
1696 ms |
262144 KB |
Execution killed with signal 9 |
23 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
182 ms |
79864 KB |
Output is correct |
2 |
Correct |
314 ms |
103932 KB |
Output is correct |
3 |
Correct |
75 ms |
52608 KB |
Output is correct |
4 |
Correct |
213 ms |
77316 KB |
Output is correct |
5 |
Correct |
368 ms |
93940 KB |
Output is correct |
6 |
Correct |
601 ms |
36612 KB |
Output is correct |
7 |
Correct |
102 ms |
94172 KB |
Output is correct |
8 |
Correct |
103 ms |
101372 KB |
Output is correct |
9 |
Correct |
8 ms |
35164 KB |
Output is correct |
10 |
Correct |
588 ms |
36660 KB |
Output is correct |
11 |
Correct |
58 ms |
56288 KB |
Output is correct |
12 |
Correct |
597 ms |
49916 KB |
Output is correct |
13 |
Correct |
5 ms |
27736 KB |
Output is correct |
14 |
Correct |
973 ms |
108088 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
182 ms |
79864 KB |
Output is correct |
2 |
Correct |
314 ms |
103932 KB |
Output is correct |
3 |
Correct |
75 ms |
52608 KB |
Output is correct |
4 |
Correct |
213 ms |
77316 KB |
Output is correct |
5 |
Correct |
368 ms |
93940 KB |
Output is correct |
6 |
Correct |
601 ms |
36612 KB |
Output is correct |
7 |
Correct |
102 ms |
94172 KB |
Output is correct |
8 |
Correct |
103 ms |
101372 KB |
Output is correct |
9 |
Correct |
8 ms |
35164 KB |
Output is correct |
10 |
Correct |
588 ms |
36660 KB |
Output is correct |
11 |
Correct |
58 ms |
56288 KB |
Output is correct |
12 |
Correct |
597 ms |
49916 KB |
Output is correct |
13 |
Correct |
5 ms |
27736 KB |
Output is correct |
14 |
Correct |
973 ms |
108088 KB |
Output is correct |
15 |
Correct |
5 ms |
27736 KB |
Output is correct |
16 |
Correct |
5 ms |
27740 KB |
Output is correct |
17 |
Correct |
4 ms |
27740 KB |
Output is correct |
18 |
Correct |
4 ms |
27852 KB |
Output is correct |
19 |
Correct |
5 ms |
27740 KB |
Output is correct |
20 |
Correct |
42 ms |
29336 KB |
Output is correct |
21 |
Correct |
5 ms |
27740 KB |
Output is correct |
22 |
Correct |
4 ms |
27740 KB |
Output is correct |
23 |
Correct |
5 ms |
27740 KB |
Output is correct |
24 |
Correct |
5 ms |
27740 KB |
Output is correct |
25 |
Correct |
5 ms |
27996 KB |
Output is correct |
26 |
Correct |
5 ms |
27740 KB |
Output is correct |
27 |
Correct |
5 ms |
27740 KB |
Output is correct |
28 |
Correct |
4 ms |
27740 KB |
Output is correct |
29 |
Correct |
4 ms |
27784 KB |
Output is correct |
30 |
Correct |
5 ms |
27856 KB |
Output is correct |
31 |
Correct |
5 ms |
27736 KB |
Output is correct |
32 |
Correct |
5 ms |
27996 KB |
Output is correct |
33 |
Correct |
6 ms |
28508 KB |
Output is correct |
34 |
Correct |
5 ms |
27828 KB |
Output is correct |
35 |
Correct |
5 ms |
27736 KB |
Output is correct |
36 |
Runtime error |
1696 ms |
262144 KB |
Execution killed with signal 9 |
37 |
Halted |
0 ms |
0 KB |
- |