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Submission #219502

# Submission time Handle Problem Language Result Execution time Memory
219502 2020-04-05T12:21:22 Z quocnguyen1012 Cheap flights (LMIO18_pigus_skrydziai) C++14
100 / 100
 1561 ms 89544 KB 
#include <bits/stdc++.h>

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define eb emplace_back

using namespace std;
typedef long long ll;
typedef pair<int, int> ii;

const int maxn = 3e5 + 5;

map<ii, int> cost;
int N, M;
vector<ii> adj[maxn];

signed main(void)
{
  ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  #ifdef LOCAL
    freopen("A.INP", "r", stdin);
    freopen("A.OUT", "w", stdout);
  #endif // LOCAL
  cin >> N >> M;
  ll res = 0;
  while(M--){
    int u, v, w;
    cin >> u >> v >> w;
    cost[mp(u, v)] = cost[mp(v, u)] = w;
    adj[u].eb(w, v); adj[v].eb(w, u);
  }
  for(int i = 1; i <= N; ++i){
    sort(adj[i].rbegin(), adj[i].rend());
    ll sum = 0;
    for(auto & it : adj[i]) sum += it.fi;
    if(adj[i].size() >= 2 && cost[mp(adj[i][0].se, adj[i][1].se)])
      res = max(res, 1ll * adj[i][0].fi + adj[i][1].fi + cost[mp(adj[i][0].se, adj[i][1].se)]);
    res = max(res, sum);
  }
  cout << res;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 8 ms 7296 KB Output is correct
3 Correct 8 ms 7424 KB Output is correct
4 Correct 8 ms 7296 KB Output is correct
5 Correct 9 ms 7296 KB Output is correct
6 Correct 28 ms 10496 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 8 ms 7424 KB Output is correct
9 Correct 9 ms 7424 KB Output is correct
10 Correct 9 ms 7424 KB Output is correct
11 Correct 9 ms 7424 KB Output is correct
12 Correct 9 ms 7424 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 8 ms 7424 KB Output is correct
15 Correct 9 ms 7424 KB Output is correct
16 Correct 8 ms 7424 KB Output is correct
17 Correct 9 ms 7424 KB Output is correct
18 Correct 9 ms 7552 KB Output is correct
19 Correct 10 ms 7680 KB Output is correct
20 Correct 8 ms 7424 KB Output is correct
21 Correct 9 ms 7424 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 8 ms 7296 KB Output is correct
3 Correct 8 ms 7424 KB Output is correct
4 Correct 8 ms 7296 KB Output is correct
5 Correct 9 ms 7296 KB Output is correct
6 Correct 28 ms 10496 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 8 ms 7424 KB Output is correct
9 Correct 9 ms 7424 KB Output is correct
10 Correct 9 ms 7424 KB Output is correct
11 Correct 9 ms 7424 KB Output is correct
12 Correct 9 ms 7424 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 8 ms 7424 KB Output is correct
15 Correct 9 ms 7424 KB Output is correct
16 Correct 8 ms 7424 KB Output is correct
17 Correct 9 ms 7424 KB Output is correct
18 Correct 9 ms 7552 KB Output is correct
19 Correct 10 ms 7680 KB Output is correct
20 Correct 8 ms 7424 KB Output is correct
21 Correct 9 ms 7424 KB Output is correct
22 Correct 1561 ms 89544 KB Output is correct
23 Correct 560 ms 86776 KB Output is correct
24 Correct 37 ms 10872 KB Output is correct
25 Correct 15 ms 8448 KB Output is correct
26 Correct 14 ms 8448 KB Output is correct
27 Correct 11 ms 7808 KB Output is correct
28 Correct 456 ms 40040 KB Output is correct
29 Correct 147 ms 20216 KB Output is correct
30 Correct 252 ms 27256 KB Output is correct
31 Correct 9 ms 7552 KB Output is correct
32 Correct 9 ms 7552 KB Output is correct
33 Correct 605 ms 87416 KB Output is correct
34 Correct 473 ms 78668 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 309 ms 37752 KB Output is correct
2 Correct 781 ms 77816 KB Output is correct
3 Correct 209 ms 30680 KB Output is correct
4 Correct 461 ms 52240 KB Output is correct
5 Correct 1155 ms 69384 KB Output is correct
6 Correct 120 ms 26232 KB Output is correct
7 Correct 292 ms 61948 KB Output is correct
8 Correct 321 ms 58872 KB Output is correct
9 Correct 11 ms 7552 KB Output is correct
10 Correct 112 ms 26360 KB Output is correct
11 Correct 320 ms 55020 KB Output is correct
12 Correct 238 ms 45176 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 199 ms 23288 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 309 ms 37752 KB Output is correct
2 Correct 781 ms 77816 KB Output is correct
3 Correct 209 ms 30680 KB Output is correct
4 Correct 461 ms 52240 KB Output is correct
5 Correct 1155 ms 69384 KB Output is correct
6 Correct 120 ms 26232 KB Output is correct
7 Correct 292 ms 61948 KB Output is correct
8 Correct 321 ms 58872 KB Output is correct
9 Correct 11 ms 7552 KB Output is correct
10 Correct 112 ms 26360 KB Output is correct
11 Correct 320 ms 55020 KB Output is correct
12 Correct 238 ms 45176 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 199 ms 23288 KB Output is correct
15 Correct 499 ms 41180 KB Output is correct
16 Correct 483 ms 40312 KB Output is correct
17 Correct 533 ms 45544 KB Output is correct
18 Correct 767 ms 53972 KB Output is correct
19 Correct 199 ms 25576 KB Output is correct
20 Correct 764 ms 58744 KB Output is correct
21 Correct 763 ms 80196 KB Output is correct
22 Correct 491 ms 55672 KB Output is correct
23 Correct 581 ms 55528 KB Output is correct
24 Correct 337 ms 32352 KB Output is correct
25 Correct 901 ms 60216 KB Output is correct
26 Correct 806 ms 55128 KB Output is correct
27 Correct 750 ms 53240 KB Output is correct
28 Correct 8 ms 7424 KB Output is correct
29 Correct 8 ms 7296 KB Output is correct
30 Correct 8 ms 7424 KB Output is correct
31 Correct 8 ms 7296 KB Output is correct
32 Correct 9 ms 7296 KB Output is correct
33 Correct 28 ms 10496 KB Output is correct
34 Correct 9 ms 7424 KB Output is correct
35 Correct 8 ms 7424 KB Output is correct
36 Correct 9 ms 7424 KB Output is correct
37 Correct 9 ms 7424 KB Output is correct
38 Correct 9 ms 7424 KB Output is correct
39 Correct 9 ms 7424 KB Output is correct
40 Correct 9 ms 7424 KB Output is correct
41 Correct 8 ms 7424 KB Output is correct
42 Correct 9 ms 7424 KB Output is correct
43 Correct 8 ms 7424 KB Output is correct
44 Correct 9 ms 7424 KB Output is correct
45 Correct 9 ms 7552 KB Output is correct
46 Correct 10 ms 7680 KB Output is correct
47 Correct 8 ms 7424 KB Output is correct
48 Correct 9 ms 7424 KB Output is correct
49 Correct 1561 ms 89544 KB Output is correct
50 Correct 560 ms 86776 KB Output is correct
51 Correct 37 ms 10872 KB Output is correct
52 Correct 15 ms 8448 KB Output is correct
53 Correct 14 ms 8448 KB Output is correct
54 Correct 11 ms 7808 KB Output is correct
55 Correct 456 ms 40040 KB Output is correct
56 Correct 147 ms 20216 KB Output is correct
57 Correct 252 ms 27256 KB Output is correct
58 Correct 9 ms 7552 KB Output is correct
59 Correct 9 ms 7552 KB Output is correct
60 Correct 605 ms 87416 KB Output is correct
61 Correct 473 ms 78668 KB Output is correct