oj.uz

Submission #996337

# Submission time Handle Problem Language Result Execution time Memory
996337 2024-06-10T13:16:46 Z kunzaZa183 Longest Trip (IOI23_longesttrip) C++17
70 / 100
 29 ms 600 KB 
#include "longesttrip.h"

#include <bits/stdc++.h>
using namespace std;

vector<int> longest_trip(int N, int D) {
  vector<int> trip1(1, 0), trip2;
  for (int i = 1; i < N; i++) {
    bool b = are_connected(vector<int>(1, trip1.front()), vector<int>(1, i)),
         b2 = are_connected(vector<int>(1, trip1.back()), vector<int>(1, i));
    if (!b && !b2)
      trip2.push_back(i);
    else if (trip2.empty()) {
      if (b)
        trip1.insert(trip1.begin(), i);
      else
        trip1.push_back(i);
    } else if (b) {
      bool b3 = are_connected(vector<int>(1, trip2.front()), vector<int>(1, i)),
           b4 = are_connected(vector<int>(1, trip2.back()), vector<int>(1, i));
      if (b3) {
        trip1.insert(trip1.begin(), i);
        for (auto a : trip2) trip1.insert(trip1.begin(), a);
        trip2.clear();
      } else if (b4) {
        trip2.push_back(i);
        for (auto a : trip1) trip2.push_back(a);
        trip1 = trip2;
        trip2.clear();
      } else {
        trip1.insert(trip1.begin(), i);
      }
    } else if (b2) {
      bool b3 = are_connected(vector<int>(1, trip2.front()), vector<int>(1, i)),
           b4 = are_connected(vector<int>(1, trip2.back()), vector<int>(1, i));
      if (b3) {
        trip1.push_back(i);
        for (auto a : trip2) trip1.push_back(a);
        trip2.clear();
      } else if (b4) {
        reverse(trip2.begin(), trip2.end());
        trip1.push_back(i);
        for (auto a : trip2) trip1.push_back(a);
        trip2.clear();
      } else {
        trip1.push_back(i);
      }
    }
  }
  if (trip2.empty()) return trip1;
  if (are_connected(trip1, trip2)) {
    vector<int> vi, vi2;
    if (trip1.size() != 1)
      vi.push_back(trip1.front()), vi.push_back(trip1.back());
    else
      vi.push_back(trip1.front());
    if (trip2.size() != 1)
      vi2.push_back(trip2.front()), vi2.push_back(trip2.back());
    else
      vi2.push_back(trip2.front());
    if (are_connected(vi, vi2)) {
      while (1) {
      }
    }

    // if (trip1.size() != 1) {
    //   if (!are_connected(vector<int>(1, trip1.front()),
    //                      vector<int>(1, trip1.back())))

    //     while (1) {
    //     }
    // }
    // if (trip2.size() != 1) {
    //   if (!are_connected(vector<int>(1, trip2.front()),
    //                      vector<int>(1, trip2.back())))

    //     while (1) {
    //     }
    // }

    int l = 0, r = int(trip1.size()) - 1;
    while (l < r) {
      int mid = (l + r) / 2;
      vector<int> tmp;
      for (int i = l; i <= mid; i++) tmp.push_back(trip1[i]);
      if (are_connected(tmp, trip2))
        r = mid;
      else
        l = mid + 1;
    }
    int firstone = l;
    l = 0, r = int(trip2.size()) - 1;
    while (l < r) {
      int mid = (l + r) / 2;
      vector<int> tmp;
      for (int i = l; i <= mid; i++) tmp.push_back(trip2[i]);
      if (are_connected(tmp, vector<int>(1, trip1[firstone])))
        r = mid;
      else
        l = mid + 1;
    }
    int secondone = l;
    vector<int> ans;
    for (int i = firstone + 1; i < trip1.size(); i++) ans.push_back(trip1[i]);
    for (int i = 0; i <= firstone; i++) ans.push_back(trip1[i]);
    for (int i = secondone; i < trip2.size(); i++) ans.push_back(trip2[i]);
    for (int i = 0; i < secondone; i++) ans.push_back(trip2[i]);
    return ans;
  }

  if (trip1.size() < trip2.size()) trip1.swap(trip2);
  return trip1;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:104:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |     for (int i = firstone + 1; i < trip1.size(); i++) ans.push_back(trip1[i]);
      |                                ~~^~~~~~~~~~~~~~
longesttrip.cpp:106:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  106 |     for (int i = secondone; i < trip2.size(); i++) ans.push_back(trip2[i]);
      |                             ~~^~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

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

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 9 ms 344 KB Output is correct
3 Correct 8 ms 344 KB Output is correct
4 Correct 9 ms 344 KB Output is correct
5 Correct 11 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 14 ms 344 KB Output is correct
3 Correct 10 ms 344 KB Output is correct
4 Correct 13 ms 344 KB Output is correct
5 Correct 13 ms 344 KB Output is correct
6 Correct 9 ms 344 KB Output is correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 10 ms 344 KB Output is correct
9 Correct 14 ms 344 KB Output is correct
10 Correct 9 ms 344 KB Output is correct
11 Correct 9 ms 344 KB Output is correct
12 Correct 8 ms 344 KB Output is correct
13 Correct 12 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 8 ms 344 KB Output is correct
3 Correct 11 ms 344 KB Output is correct
4 Correct 9 ms 344 KB Output is correct
5 Correct 7 ms 344 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 7 ms 344 KB Output is correct
9 Correct 9 ms 344 KB Output is correct
10 Correct 11 ms 344 KB Output is correct
11 Correct 6 ms 344 KB Output is correct
12 Correct 8 ms 340 KB Output is correct
13 Correct 8 ms 344 KB Output is correct
14 Correct 15 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Correct 11 ms 344 KB Output is correct
17 Correct 11 ms 344 KB Output is correct
18 Correct 10 ms 344 KB Output is correct
19 Correct 8 ms 344 KB Output is correct
20 Correct 10 ms 344 KB Output is correct
21 Correct 9 ms 344 KB Output is correct
22 Correct 10 ms 344 KB Output is correct
23 Correct 10 ms 344 KB Output is correct
24 Correct 10 ms 344 KB Output is correct
25 Correct 14 ms 344 KB Output is correct
26 Correct 11 ms 344 KB Output is correct
27 Correct 15 ms 344 KB Output is correct
28 Correct 11 ms 344 KB Output is correct
29 Correct 14 ms 344 KB Output is correct
30 Correct 19 ms 344 KB Output is correct
31 Correct 13 ms 344 KB Output is correct
32 Correct 14 ms 344 KB Output is correct
33 Correct 11 ms 344 KB Output is correct
34 Correct 15 ms 344 KB Output is correct
35 Correct 14 ms 344 KB Output is correct
36 Correct 13 ms 344 KB Output is correct
37 Correct 15 ms 344 KB Output is correct
38 Correct 22 ms 344 KB Output is correct
39 Correct 13 ms 344 KB Output is correct
40 Correct 11 ms 340 KB Output is correct
41 Correct 11 ms 344 KB Output is correct
42 Correct 12 ms 596 KB Output is correct
43 Correct 14 ms 344 KB Output is correct
44 Correct 16 ms 344 KB Output is correct
45 Correct 14 ms 344 KB Output is correct
46 Correct 10 ms 344 KB Output is correct
47 Correct 12 ms 344 KB Output is correct
48 Correct 17 ms 344 KB Output is correct
49 Correct 11 ms 344 KB Output is correct
50 Correct 12 ms 344 KB Output is correct
51 Correct 13 ms 340 KB Output is correct
52 Correct 12 ms 344 KB Output is correct
53 Correct 12 ms 344 KB Output is correct
54 Correct 11 ms 344 KB Output is correct
55 Correct 14 ms 344 KB Output is correct
56 Correct 14 ms 600 KB Output is correct
57 Correct 14 ms 344 KB Output is correct
58 Correct 15 ms 344 KB Output is correct
59 Correct 20 ms 600 KB Output is correct
60 Correct 11 ms 344 KB Output is correct
61 Correct 13 ms 344 KB Output is correct
62 Correct 16 ms 344 KB Output is correct
63 Correct 18 ms 344 KB Output is correct
64 Correct 15 ms 344 KB Output is correct

Subtask #4
30.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 344 KB Output is correct
2 Correct 9 ms 344 KB Output is correct
3 Correct 10 ms 344 KB Output is correct
4 Correct 10 ms 344 KB Output is correct
5 Partially correct 7 ms 344 KB Output is partially correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 10 ms 344 KB Output is correct
8 Correct 10 ms 344 KB Output is correct
9 Correct 10 ms 344 KB Output is correct
10 Partially correct 6 ms 344 KB Output is partially correct
11 Partially correct 7 ms 344 KB Output is partially correct
12 Partially correct 11 ms 344 KB Output is partially correct
13 Partially correct 10 ms 344 KB Output is partially correct
14 Correct 7 ms 344 KB Output is correct
15 Correct 16 ms 344 KB Output is correct
16 Correct 11 ms 344 KB Output is correct
17 Correct 11 ms 344 KB Output is correct
18 Correct 11 ms 344 KB Output is correct
19 Correct 9 ms 344 KB Output is correct
20 Correct 8 ms 344 KB Output is correct
21 Correct 15 ms 344 KB Output is correct
22 Correct 11 ms 344 KB Output is correct
23 Correct 13 ms 344 KB Output is correct
24 Correct 12 ms 344 KB Output is correct
25 Correct 20 ms 344 KB Output is correct
26 Correct 15 ms 344 KB Output is correct
27 Correct 17 ms 344 KB Output is correct
28 Correct 14 ms 344 KB Output is correct
29 Correct 16 ms 344 KB Output is correct
30 Correct 19 ms 344 KB Output is correct
31 Correct 25 ms 344 KB Output is correct
32 Correct 10 ms 340 KB Output is correct
33 Correct 10 ms 344 KB Output is correct
34 Correct 12 ms 344 KB Output is correct
35 Correct 12 ms 344 KB Output is correct
36 Correct 12 ms 344 KB Output is correct
37 Correct 13 ms 344 KB Output is correct
38 Correct 16 ms 344 KB Output is correct
39 Correct 20 ms 344 KB Output is correct
40 Correct 18 ms 344 KB Output is correct
41 Correct 16 ms 344 KB Output is correct
42 Correct 17 ms 344 KB Output is correct
43 Partially correct 7 ms 344 KB Output is partially correct
44 Partially correct 11 ms 344 KB Output is partially correct
45 Partially correct 11 ms 344 KB Output is partially correct
46 Partially correct 11 ms 344 KB Output is partially correct
47 Partially correct 16 ms 344 KB Output is partially correct
48 Partially correct 13 ms 344 KB Output is partially correct
49 Partially correct 15 ms 344 KB Output is partially correct
50 Partially correct 17 ms 344 KB Output is partially correct
51 Partially correct 16 ms 344 KB Output is partially correct
52 Partially correct 14 ms 344 KB Output is partially correct
53 Partially correct 14 ms 344 KB Output is partially correct
54 Partially correct 9 ms 340 KB Output is partially correct
55 Partially correct 12 ms 344 KB Output is partially correct
56 Partially correct 18 ms 344 KB Output is partially correct
57 Partially correct 15 ms 344 KB Output is partially correct
58 Partially correct 12 ms 344 KB Output is partially correct
59 Partially correct 13 ms 596 KB Output is partially correct
60 Partially correct 29 ms 344 KB Output is partially correct
61 Partially correct 11 ms 444 KB Output is partially correct
62 Partially correct 16 ms 344 KB Output is partially correct
63 Partially correct 15 ms 344 KB Output is partially correct
64 Partially correct 14 ms 344 KB Output is partially correct
65 Partially correct 13 ms 344 KB Output is partially correct
66 Partially correct 14 ms 344 KB Output is partially correct
67 Partially correct 14 ms 344 KB Output is partially correct
68 Partially correct 15 ms 344 KB Output is partially correct
69 Partially correct 13 ms 344 KB Output is partially correct
70 Partially correct 14 ms 344 KB Output is partially correct
71 Partially correct 28 ms 344 KB Output is partially correct
72 Partially correct 11 ms 344 KB Output is partially correct
73 Partially correct 12 ms 344 KB Output is partially correct
74 Partially correct 18 ms 344 KB Output is partially correct
75 Partially correct 10 ms 344 KB Output is partially correct
76 Partially correct 11 ms 344 KB Output is partially correct
77 Partially correct 19 ms 344 KB Output is partially correct
78 Partially correct 17 ms 344 KB Output is partially correct
79 Partially correct 15 ms 344 KB Output is partially correct
80 Partially correct 15 ms 344 KB Output is partially correct
81 Partially correct 15 ms 344 KB Output is partially correct
82 Partially correct 14 ms 344 KB Output is partially correct