oj.uz

Submission #1038493

# Submission time Handle Problem Language Result Execution time Memory
1038493 2024-07-29T21:19:52 Z erray Longest Trip (IOI23_longesttrip) C++17
100 / 100
 18 ms 1104 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>

using namespace std;

#ifdef DEBUG 
  #include "/home/ioi/egoi2024/d2/debug.h"
#else 
  #define debug(...) void(37)
#endif

vector<int> m(vector<int> x, vector<int> y) {
  vector<int> res;
  res = x;
  res.insert(res.end(), y.begin(), y.end());
  return res;
}

std::vector<int> longest_trip(int N, int D) {
  array<vector<int>, 2> l;
  l[0] = {0}; l[1] = {1};
  bool dis = false;
  for (int i = 2; i < N; ++i) {
    if (are_connected({i}, {l[0].back()})) {
      l[0].push_back(i);
      dis = false;
    } else if (dis) {
      l[1].push_back(i);
      dis = false;
    } else if (are_connected({i}, {l[1].back()})) {
      l[1].push_back(i);
      dis = true;
    } else {
      if (int(l[1].size()) == 1) {
        dis = true;
      } else {
        dis = false;
      }
      l[0] = m(l[0], vector<int>(l[1].rbegin(), l[1].rend()));
      l[1] = {i};
    }
  } 
  debug(l);
  if (!are_connected(l[0], l[1])) {
    return  int(l[0].size()) > int(l[1].size()) ? l[0] : l[1];
  }
  vector<int> fe0, fe1;
  int l0 = int(l[0].size());
  int l1 = int(l[1].size());
  for (int i = 0; i < l0; ++i) {
    if (i == 0 || i == l0 - 1) fe0.push_back(l[0][i]);
  }
  for (int i = 0; i < l1; ++i) {
    if (i == 0 || i == l1 - 1) fe1.push_back(l[1][i]);
  }
  if (!are_connected(fe0, fe1)) {
    int s = -1;
    {
      int low = 0, high = int(l[1].size()) - 1;
      while (low < high) {
        int mid = (low + high) >> 1;
        if (are_connected(l[0], vector<int>(l[1].begin(), l[1].begin() + mid + 1))) {
          high = mid;
        } else {
          low = mid + 1;
        }
      }
      s = low;
    }
    int f = -1;
    {
      int low = 0, high = int(l[0].size()) - 1;
      while (low < high) {
        int mid = (low + high) >> 1;
        if (are_connected({l[1][s]}, vector<int>(l[0].begin(), l[0].begin() + mid + 1))) {
          high = mid;
        } else {
          low = mid + 1;
        }
      }
      f = low;
    }
    rotate(l[1].begin(), l[1].begin() + s, l[1].end());
    if (f != int(l[0].size()) - 1) rotate(l[0].begin(), l[0].begin() + f + 1, l[0].end());
    vector<int> ans = m(l[0], l[1]);
    return ans;
  }
  vector<int> ans;
  for (int it = 0; it < 2; ++it) {
    for (int it1 = 0; it1 < 2; it1++) {
      if (are_connected({l[0].back()}, {l[1][0]})) {
        ans = m(l[0], l[1]);
      }
      reverse(l[1].begin(), l[1].end());
    }
    reverse(l[0].begin(), l[0].end());
  }
  return ans;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 2 ms 344 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 344 KB Output is correct
2 Correct 10 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 344 KB Output is correct
2 Correct 7 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 12 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 6 ms 344 KB Output is correct
9 Correct 7 ms 600 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 6 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 4 ms 444 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 7 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 6 ms 436 KB Output is correct
6 Correct 16 ms 344 KB Output is correct
7 Correct 9 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 436 KB Output is correct
10 Correct 6 ms 436 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 6 ms 444 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 8 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 6 ms 600 KB Output is correct
19 Correct 7 ms 600 KB Output is correct
20 Correct 8 ms 600 KB Output is correct
21 Correct 6 ms 448 KB Output is correct
22 Correct 5 ms 452 KB Output is correct
23 Correct 8 ms 436 KB Output is correct
24 Correct 6 ms 600 KB Output is correct
25 Correct 6 ms 344 KB Output is correct
26 Correct 6 ms 344 KB Output is correct
27 Correct 4 ms 344 KB Output is correct
28 Correct 6 ms 344 KB Output is correct
29 Correct 6 ms 344 KB Output is correct
30 Correct 5 ms 344 KB Output is correct
31 Correct 6 ms 436 KB Output is correct
32 Correct 9 ms 344 KB Output is correct
33 Correct 5 ms 600 KB Output is correct
34 Correct 4 ms 344 KB Output is correct
35 Correct 6 ms 344 KB Output is correct
36 Correct 4 ms 344 KB Output is correct
37 Correct 5 ms 344 KB Output is correct
38 Correct 5 ms 344 KB Output is correct
39 Correct 5 ms 344 KB Output is correct
40 Correct 5 ms 432 KB Output is correct
41 Correct 6 ms 436 KB Output is correct
42 Correct 5 ms 344 KB Output is correct
43 Correct 6 ms 344 KB Output is correct
44 Correct 6 ms 344 KB Output is correct
45 Correct 10 ms 344 KB Output is correct
46 Correct 10 ms 344 KB Output is correct
47 Correct 8 ms 344 KB Output is correct
48 Correct 9 ms 344 KB Output is correct
49 Correct 9 ms 344 KB Output is correct
50 Correct 5 ms 340 KB Output is correct
51 Correct 7 ms 440 KB Output is correct
52 Correct 5 ms 344 KB Output is correct
53 Correct 5 ms 344 KB Output is correct
54 Correct 6 ms 600 KB Output is correct
55 Correct 5 ms 340 KB Output is correct
56 Correct 5 ms 344 KB Output is correct
57 Correct 6 ms 344 KB Output is correct
58 Correct 7 ms 344 KB Output is correct
59 Correct 7 ms 344 KB Output is correct
60 Correct 8 ms 344 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 6 ms 344 KB Output is correct
63 Correct 9 ms 344 KB Output is correct
64 Correct 6 ms 344 KB Output is correct

Subtask #4
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 344 KB Output is correct
2 Correct 8 ms 344 KB Output is correct
3 Correct 6 ms 432 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 6 ms 344 KB Output is correct
6 Correct 10 ms 344 KB Output is correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 7 ms 344 KB Output is correct
9 Correct 7 ms 440 KB Output is correct
10 Correct 7 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 5 ms 600 KB Output is correct
13 Correct 6 ms 444 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 9 ms 344 KB Output is correct
16 Correct 11 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 5 ms 344 KB Output is correct
19 Correct 8 ms 432 KB Output is correct
20 Correct 6 ms 344 KB Output is correct
21 Correct 8 ms 344 KB Output is correct
22 Correct 9 ms 344 KB Output is correct
23 Correct 6 ms 344 KB Output is correct
24 Correct 6 ms 344 KB Output is correct
25 Correct 6 ms 344 KB Output is correct
26 Correct 5 ms 604 KB Output is correct
27 Correct 4 ms 344 KB Output is correct
28 Correct 9 ms 344 KB Output is correct
29 Correct 5 ms 344 KB Output is correct
30 Correct 7 ms 440 KB Output is correct
31 Correct 6 ms 344 KB Output is correct
32 Correct 8 ms 344 KB Output is correct
33 Correct 16 ms 344 KB Output is correct
34 Correct 9 ms 344 KB Output is correct
35 Correct 8 ms 344 KB Output is correct
36 Correct 8 ms 344 KB Output is correct
37 Correct 6 ms 344 KB Output is correct
38 Correct 8 ms 344 KB Output is correct
39 Correct 11 ms 344 KB Output is correct
40 Correct 6 ms 344 KB Output is correct
41 Correct 8 ms 344 KB Output is correct
42 Correct 5 ms 344 KB Output is correct
43 Correct 7 ms 1104 KB Output is correct
44 Correct 6 ms 344 KB Output is correct
45 Correct 4 ms 344 KB Output is correct
46 Correct 6 ms 344 KB Output is correct
47 Correct 5 ms 436 KB Output is correct
48 Correct 5 ms 344 KB Output is correct
49 Correct 6 ms 344 KB Output is correct
50 Correct 6 ms 432 KB Output is correct
51 Correct 7 ms 344 KB Output is correct
52 Correct 5 ms 344 KB Output is correct
53 Correct 6 ms 344 KB Output is correct
54 Correct 7 ms 344 KB Output is correct
55 Correct 9 ms 344 KB Output is correct
56 Correct 5 ms 436 KB Output is correct
57 Correct 6 ms 344 KB Output is correct
58 Correct 6 ms 344 KB Output is correct
59 Correct 10 ms 344 KB Output is correct
60 Correct 7 ms 344 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 6 ms 344 KB Output is correct
63 Correct 6 ms 344 KB Output is correct
64 Correct 8 ms 344 KB Output is correct
65 Correct 7 ms 344 KB Output is correct
66 Correct 6 ms 344 KB Output is correct
67 Correct 9 ms 444 KB Output is correct
68 Correct 10 ms 444 KB Output is correct
69 Correct 7 ms 344 KB Output is correct
70 Correct 7 ms 600 KB Output is correct
71 Correct 9 ms 344 KB Output is correct
72 Correct 6 ms 344 KB Output is correct
73 Correct 8 ms 344 KB Output is correct
74 Correct 7 ms 344 KB Output is correct
75 Correct 7 ms 440 KB Output is correct
76 Correct 8 ms 596 KB Output is correct
77 Correct 4 ms 344 KB Output is correct
78 Correct 9 ms 440 KB Output is correct
79 Correct 8 ms 344 KB Output is correct
80 Correct 7 ms 344 KB Output is correct
81 Correct 10 ms 436 KB Output is correct
82 Correct 8 ms 344 KB Output is correct