#include<bits/stdc++.h>
using namespace std;
int n,m;
typedef long long ll;
vector<pair<int, ll>> adj[300001];
ll cost(int a, int b) {
if(adj[a].size()>adj[b].size()) swap(a,b);
auto it=lower_bound(adj[a].begin(),adj[a].end(), make_pair(b,0LL));
if(it==adj[a].end() || it->first!=b) return 0;
return it->second;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin>>n>>m;
for(int i=0;i<m;++i) {
int a,b,c;
cin>>a>>b>>c;
adj[a].push_back({b,c});
adj[b].push_back({a,c});
}
ll ans=0;
for(int i=1;i<=n;++i) {
ll cans=0;
for(auto j:adj[i]) {
cans+=j.second;
}
ans=max(ans, cans);
sort(adj[i].begin(),adj[i].end());
}
const int lim=128;
for(int i=1;i<=n;++i) {
if(adj[i].size()<=lim) {
for(int j=0;j<adj[i].size();++j) {
for(int k=j+1;k<adj[i].size();++k) {
ans=max(ans, adj[i][j].second+adj[i][k].second+cost(adj[i][j].first, adj[i][k].first));
}
}
}else {
vector<int> kell(n+1);
for(auto j:adj[i]) {
kell[j.first]=j.second;
}
for(auto j:adj[i]) {
for(auto k:adj[j.first]) {
if(kell[k.first]) ans=max(ans, k.second+j.second+kell[k.first]);
}
}
}
}
cout<<ans<<"\n";
return 0;
}
Compilation message
pigus_skrydziai.cpp: In function 'int main()':
pigus_skrydziai.cpp:37:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<adj[i].size();++j) {
~^~~~~~~~~~~~~~
pigus_skrydziai.cpp:38:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int k=j+1;k<adj[i].size();++k) {
~^~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 2 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 3 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 4 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 5 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 6 |
Correct |
28 ms |
8184 KB |
Output is correct |
| 7 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 8 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 9 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 10 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 11 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 12 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 13 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 14 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 15 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 16 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 17 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 18 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 19 |
Correct |
11 ms |
7416 KB |
Output is correct |
| 20 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 21 |
Correct |
9 ms |
7416 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 2 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 3 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 4 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 5 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 6 |
Correct |
28 ms |
8184 KB |
Output is correct |
| 7 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 8 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 9 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 10 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 11 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 12 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 13 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 14 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 15 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 16 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 17 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 18 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 19 |
Correct |
11 ms |
7416 KB |
Output is correct |
| 20 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 21 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 22 |
Correct |
855 ms |
29304 KB |
Output is correct |
| 23 |
Correct |
2260 ms |
23672 KB |
Output is correct |
| 24 |
Correct |
48 ms |
8568 KB |
Output is correct |
| 25 |
Correct |
14 ms |
7672 KB |
Output is correct |
| 26 |
Correct |
14 ms |
7672 KB |
Output is correct |
| 27 |
Correct |
10 ms |
7544 KB |
Output is correct |
| 28 |
Correct |
256 ms |
16120 KB |
Output is correct |
| 29 |
Correct |
138 ms |
11128 KB |
Output is correct |
| 30 |
Correct |
256 ms |
11768 KB |
Output is correct |
| 31 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 32 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 33 |
Correct |
783 ms |
27584 KB |
Output is correct |
| 34 |
Correct |
700 ms |
26360 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
122 ms |
16888 KB |
Output is correct |
| 2 |
Correct |
280 ms |
23032 KB |
Output is correct |
| 3 |
Correct |
72 ms |
12664 KB |
Output is correct |
| 4 |
Correct |
171 ms |
17660 KB |
Output is correct |
| 5 |
Correct |
354 ms |
22968 KB |
Output is correct |
| 6 |
Correct |
238 ms |
11512 KB |
Output is correct |
| 7 |
Correct |
129 ms |
19544 KB |
Output is correct |
| 8 |
Correct |
149 ms |
21424 KB |
Output is correct |
| 9 |
Correct |
12 ms |
7416 KB |
Output is correct |
| 10 |
Correct |
229 ms |
11512 KB |
Output is correct |
| 11 |
Correct |
136 ms |
21612 KB |
Output is correct |
| 12 |
Correct |
331 ms |
15588 KB |
Output is correct |
| 13 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 14 |
Correct |
488 ms |
11840 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
122 ms |
16888 KB |
Output is correct |
| 2 |
Correct |
280 ms |
23032 KB |
Output is correct |
| 3 |
Correct |
72 ms |
12664 KB |
Output is correct |
| 4 |
Correct |
171 ms |
17660 KB |
Output is correct |
| 5 |
Correct |
354 ms |
22968 KB |
Output is correct |
| 6 |
Correct |
238 ms |
11512 KB |
Output is correct |
| 7 |
Correct |
129 ms |
19544 KB |
Output is correct |
| 8 |
Correct |
149 ms |
21424 KB |
Output is correct |
| 9 |
Correct |
12 ms |
7416 KB |
Output is correct |
| 10 |
Correct |
229 ms |
11512 KB |
Output is correct |
| 11 |
Correct |
136 ms |
21612 KB |
Output is correct |
| 12 |
Correct |
331 ms |
15588 KB |
Output is correct |
| 13 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 14 |
Correct |
488 ms |
11840 KB |
Output is correct |
| 15 |
Correct |
136 ms |
17240 KB |
Output is correct |
| 16 |
Correct |
227 ms |
15580 KB |
Output is correct |
| 17 |
Correct |
367 ms |
16484 KB |
Output is correct |
| 18 |
Correct |
375 ms |
17608 KB |
Output is correct |
| 19 |
Correct |
74 ms |
12648 KB |
Output is correct |
| 20 |
Correct |
689 ms |
23800 KB |
Output is correct |
| 21 |
Correct |
323 ms |
23228 KB |
Output is correct |
| 22 |
Correct |
192 ms |
17784 KB |
Output is correct |
| 23 |
Correct |
189 ms |
20060 KB |
Output is correct |
| 24 |
Correct |
103 ms |
14280 KB |
Output is correct |
| 25 |
Correct |
360 ms |
21752 KB |
Output is correct |
| 26 |
Correct |
238 ms |
20524 KB |
Output is correct |
| 27 |
Correct |
403 ms |
19192 KB |
Output is correct |
| 28 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 29 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 30 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 31 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 32 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 33 |
Correct |
28 ms |
8184 KB |
Output is correct |
| 34 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 35 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 36 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 37 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 38 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 39 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 40 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 41 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 42 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 43 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 44 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 45 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 46 |
Correct |
11 ms |
7416 KB |
Output is correct |
| 47 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 48 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 49 |
Correct |
855 ms |
29304 KB |
Output is correct |
| 50 |
Correct |
2260 ms |
23672 KB |
Output is correct |
| 51 |
Correct |
48 ms |
8568 KB |
Output is correct |
| 52 |
Correct |
14 ms |
7672 KB |
Output is correct |
| 53 |
Correct |
14 ms |
7672 KB |
Output is correct |
| 54 |
Correct |
10 ms |
7544 KB |
Output is correct |
| 55 |
Correct |
256 ms |
16120 KB |
Output is correct |
| 56 |
Correct |
138 ms |
11128 KB |
Output is correct |
| 57 |
Correct |
256 ms |
11768 KB |
Output is correct |
| 58 |
Correct |
10 ms |
7416 KB |
Output is correct |
| 59 |
Correct |
9 ms |
7416 KB |
Output is correct |
| 60 |
Correct |
783 ms |
27584 KB |
Output is correct |
| 61 |
Correct |
700 ms |
26360 KB |
Output is correct |
