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Submission #243220

# Submission time Handle Problem Language Result Execution time Memory
243220 2020-06-30T14:57:43 Z Nightlight Cheap flights (LMIO18_pigus_skrydziai) C++14
100 / 100
 526 ms 32180 KB 
#include <bits/stdc++.h>
#define pii pair<int, int>
#define piii tuple<int, int, int>
using namespace std;

int N, M;
vector<pii> adj[300005];
int deg[300005];
long long res[300005];
piii edge[300005];
int vis[300005];
long long ada[300005];
long long ans;

bool comp(int a, int b) {
  return deg[a] == deg[b] ? a > b : deg[a] > deg[b]; 
}

int main() {
  scanf("%d %d", &N, &M);
  int u, v, w;
  for(int i = 1; i <= M; i++) {
    scanf("%d %d %d", &u, &v, &w);
    deg[u]++, deg[v]++;
    ada[u] += w, ada[v] += w;
    edge[i] = make_tuple(u, v, w);
  }
  for(int i = 1; i <= M; i++) {
    tie(u, v, w) = edge[i];
    if(comp(u, v)) adj[u].emplace_back(v, w);
    else adj[v].emplace_back(u, w);
  }
  for(int u = 1; u <= N; u++) {
    ans = max(ans, ada[u]);
    for(pii v : adj[u]) {
      vis[v.first] = v.second;
    }
    for(pii v : adj[u]) {
      for(pii w : adj[v.first]) {
        if(vis[w.first]) {
          ans = max(ans, (long long) vis[v.first] + vis[w.first] + w.second);
        }
      }
    }
    for(pii v : adj[u]) {
      vis[v.first] = 0;
    }
  }
  printf("%lld\n", ans);
  cin >> N;
}

Compilation message

pigus_skrydziai.cpp: In function 'int main()':
pigus_skrydziai.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &N, &M);
   ~~~~~^~~~~~~~~~~~~~~~~
pigus_skrydziai.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d", &u, &v, &w);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 7424 KB Output is correct
2 Correct 11 ms 7424 KB Output is correct
3 Correct 10 ms 7424 KB Output is correct
4 Correct 9 ms 7424 KB Output is correct
5 Correct 12 ms 7424 KB Output is correct
6 Correct 20 ms 8064 KB Output is correct
7 Correct 10 ms 7424 KB Output is correct
8 Correct 9 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 10 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 9 ms 7424 KB Output is correct
15 Correct 9 ms 7424 KB Output is correct
16 Correct 9 ms 7424 KB Output is correct
17 Correct 9 ms 7328 KB Output is correct
18 Correct 11 ms 7424 KB Output is correct
19 Correct 10 ms 7424 KB Output is correct
20 Correct 10 ms 7424 KB Output is correct
21 Correct 11 ms 7432 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 7424 KB Output is correct
2 Correct 11 ms 7424 KB Output is correct
3 Correct 10 ms 7424 KB Output is correct
4 Correct 9 ms 7424 KB Output is correct
5 Correct 12 ms 7424 KB Output is correct
6 Correct 20 ms 8064 KB Output is correct
7 Correct 10 ms 7424 KB Output is correct
8 Correct 9 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 10 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 9 ms 7424 KB Output is correct
15 Correct 9 ms 7424 KB Output is correct
16 Correct 9 ms 7424 KB Output is correct
17 Correct 9 ms 7328 KB Output is correct
18 Correct 11 ms 7424 KB Output is correct
19 Correct 10 ms 7424 KB Output is correct
20 Correct 10 ms 7424 KB Output is correct
21 Correct 11 ms 7432 KB Output is correct
22 Correct 318 ms 28112 KB Output is correct
23 Correct 526 ms 27360 KB Output is correct
24 Correct 18 ms 8192 KB Output is correct
25 Correct 12 ms 7680 KB Output is correct
26 Correct 12 ms 7680 KB Output is correct
27 Correct 11 ms 7552 KB Output is correct
28 Correct 121 ms 15352 KB Output is correct
29 Correct 60 ms 10616 KB Output is correct
30 Correct 101 ms 12408 KB Output is correct
31 Correct 10 ms 7424 KB Output is correct
32 Correct 11 ms 7424 KB Output is correct
33 Correct 194 ms 26744 KB Output is correct
34 Correct 158 ms 23508 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 104 ms 20728 KB Output is correct
2 Correct 267 ms 27564 KB Output is correct
3 Correct 59 ms 13944 KB Output is correct
4 Correct 151 ms 21496 KB Output is correct
5 Correct 219 ms 23672 KB Output is correct
6 Correct 83 ms 11388 KB Output is correct
7 Correct 113 ms 25336 KB Output is correct
8 Correct 130 ms 26360 KB Output is correct
9 Correct 13 ms 11904 KB Output is correct
10 Correct 84 ms 11384 KB Output is correct
11 Correct 105 ms 19948 KB Output is correct
12 Correct 92 ms 14712 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 55 ms 10872 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 104 ms 20728 KB Output is correct
2 Correct 267 ms 27564 KB Output is correct
3 Correct 59 ms 13944 KB Output is correct
4 Correct 151 ms 21496 KB Output is correct
5 Correct 219 ms 23672 KB Output is correct
6 Correct 83 ms 11388 KB Output is correct
7 Correct 113 ms 25336 KB Output is correct
8 Correct 130 ms 26360 KB Output is correct
9 Correct 13 ms 11904 KB Output is correct
10 Correct 84 ms 11384 KB Output is correct
11 Correct 105 ms 19948 KB Output is correct
12 Correct 92 ms 14712 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 55 ms 10872 KB Output is correct
15 Correct 86 ms 15468 KB Output is correct
16 Correct 92 ms 15484 KB Output is correct
17 Correct 154 ms 17900 KB Output is correct
18 Correct 174 ms 19032 KB Output is correct
19 Correct 56 ms 12908 KB Output is correct
20 Correct 146 ms 18680 KB Output is correct
21 Correct 279 ms 32180 KB Output is correct
22 Correct 154 ms 23672 KB Output is correct
23 Correct 125 ms 21608 KB Output is correct
24 Correct 63 ms 12776 KB Output is correct
25 Correct 159 ms 20576 KB Output is correct
26 Correct 118 ms 17176 KB Output is correct
27 Correct 127 ms 17400 KB Output is correct
28 Correct 11 ms 7424 KB Output is correct
29 Correct 11 ms 7424 KB Output is correct
30 Correct 10 ms 7424 KB Output is correct
31 Correct 9 ms 7424 KB Output is correct
32 Correct 12 ms 7424 KB Output is correct
33 Correct 20 ms 8064 KB Output is correct
34 Correct 10 ms 7424 KB Output is correct
35 Correct 9 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 10 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 9 ms 7424 KB Output is correct
42 Correct 9 ms 7424 KB Output is correct
43 Correct 9 ms 7424 KB Output is correct
44 Correct 9 ms 7328 KB Output is correct
45 Correct 11 ms 7424 KB Output is correct
46 Correct 10 ms 7424 KB Output is correct
47 Correct 10 ms 7424 KB Output is correct
48 Correct 11 ms 7432 KB Output is correct
49 Correct 318 ms 28112 KB Output is correct
50 Correct 526 ms 27360 KB Output is correct
51 Correct 18 ms 8192 KB Output is correct
52 Correct 12 ms 7680 KB Output is correct
53 Correct 12 ms 7680 KB Output is correct
54 Correct 11 ms 7552 KB Output is correct
55 Correct 121 ms 15352 KB Output is correct
56 Correct 60 ms 10616 KB Output is correct
57 Correct 101 ms 12408 KB Output is correct
58 Correct 10 ms 7424 KB Output is correct
59 Correct 11 ms 7424 KB Output is correct
60 Correct 194 ms 26744 KB Output is correct
61 Correct 158 ms 23508 KB Output is correct