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Submission #1079100

# Submission time Handle Problem Language Result Execution time Memory
1079100 2024-08-28T10:48:16 Z raphaelp Tiles (BOI24_tiles) C++14
35 / 100
 153 ms 19972 KB 
#include <bits/stdc++.h>
using namespace std;
int main()
{
    int N, M;
    cin >> N >> M;
    vector<vector<int>> Tab;
    vector<int> X(N), Y(N);
    for (int i = 0; i < N; i++)
    {
        cin >> X[i] >> Y[i];
    }
    for (int i = 0; i < N; i++)
    {
        if (X[(i + 1) % N] == X[i])
        {
            if (Y[i] < Y[(i + 1) % N])
                Tab.push_back({X[i], min(Y[i], Y[(i + 1) % N]), max(Y[i], Y[(i + 1) % N]) - 1, 1});
            else
                Tab.push_back({X[i], min(Y[i], Y[(i + 1) % N]), max(Y[i], Y[(i + 1) % N]) - 1, -1});
        }
    }
    sort(Tab.begin(), Tab.end());
    if (Tab[0][3] == -1)
        for (int i = 0; i < Tab.size(); i++)
            Tab[i][3] = 0 - Tab[i][3];
    int last = -1;
    int impair = 0;
    vector<int> mod12(2);
    int maxx = 0;
    set<vector<int>> S;
    for (int i = 0; i < Tab.size(); i++)
    {
        if (Tab[i][0] != last || i == Tab[i].size() - 1)
        {
            last = Tab[i][0];
            if (impair)
                break;
            if (mod12[0] == 0 || mod12[1] == 0)
            {
                int par = ((mod12[1]) ? 1 : 0);
                maxx = ((Tab[i][0] % 2 == par) ? Tab[i][0] : (Tab[i][0] - 1));
            }
        }
        if (Tab[i][3] == 1)
        {
            auto pos = S.lower_bound({Tab[i][1]});
            if (pos != S.end() && (*pos)[0] == Tab[i][2] + 1 && (*pos)[2] == Tab[i][0] % 2)
            {
                Tab[i][2] = (*pos)[1];
                if (((*pos)[1] - (*pos)[0] + 1) % 2 == 1)
                    impair--;
                mod12[(*pos)[2]]--;
                pos = S.erase(pos);
            }
            if (pos != S.begin())
            {
                pos--;
                if ((*pos)[1] == Tab[i][1] - 1 && (*pos)[2] == Tab[i][0] % 2)
                {
                    Tab[i][1] = (*pos)[0];
                    if (((*pos)[1] - (*pos)[0] + 1) % 2 == 1)
                        impair--;
                    mod12[(*pos)[2]]--;
                    S.erase(pos);
                }
            }
            if ((Tab[i][2] - Tab[i][1] + 1) % 2 == 1)
                impair++;
            mod12[Tab[i][0] % 2]++;
            S.insert({Tab[i][1], Tab[i][2], Tab[i][0] % 2});
        }
        else
        {
            auto pos = S.upper_bound({Tab[i][2]});
            pos--;
            if (Tab[i][0] % 2 != (*pos)[2])
                break;
            if (Tab[i][1] < (*pos)[0])
                break;
            int left = (*pos)[0], right = Tab[i][1] - 1;
            if (right >= left)
            {
                mod12[(*pos)[2]]++;
                if ((right - left) % 2 == 0)
                    impair++;
                S.insert({left, right, (*pos)[2]});
            }
            left = Tab[i][2] + 1, right = (*pos)[1];
            if (right >= left)
            {
                mod12[(*pos)[2]]++;
                if ((right - left) % 2 == 0)
                    impair++;
                S.insert({left, right, (*pos)[2]});
            }
            mod12[(*pos)[2]]--;
            if (((*pos)[1] - (*pos)[0]) % 2 == 0)
                impair--;
            S.erase(pos);
        }
    }
    cout << maxx;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:25:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for (int i = 0; i < Tab.size(); i++)
      |                         ~~^~~~~~~~~~~~
Main.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (int i = 0; i < Tab.size(); i++)
      |                     ~~^~~~~~~~~~~~
Main.cpp:34:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         if (Tab[i][0] != last || i == Tab[i].size() - 1)
      |                                  ~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 1 ms 352 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 356 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 1 ms 352 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 356 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 1 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 70 ms 5864 KB Output is correct
3 Correct 61 ms 6120 KB Output is correct
4 Correct 65 ms 8820 KB Output is correct
5 Correct 75 ms 8968 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 113 ms 12156 KB Output is correct
9 Correct 121 ms 12292 KB Output is correct
10 Correct 126 ms 11780 KB Output is correct
11 Correct 124 ms 12272 KB Output is correct
12 Correct 118 ms 12532 KB Output is correct
13 Correct 137 ms 13060 KB Output is correct
14 Correct 118 ms 12016 KB Output is correct
15 Correct 107 ms 12032 KB Output is correct
16 Correct 114 ms 11264 KB Output is correct
17 Correct 122 ms 11516 KB Output is correct
18 Correct 141 ms 13568 KB Output is correct
19 Correct 123 ms 11380 KB Output is correct
20 Correct 112 ms 11880 KB Output is correct
21 Correct 116 ms 11524 KB Output is correct
22 Correct 121 ms 12152 KB Output is correct
23 Correct 116 ms 15620 KB Output is correct
24 Correct 127 ms 15620 KB Output is correct
25 Correct 116 ms 15476 KB Output is correct
26 Correct 137 ms 19168 KB Output is correct
27 Correct 149 ms 19196 KB Output is correct
28 Correct 141 ms 19972 KB Output is correct
29 Correct 111 ms 11784 KB Output is correct
30 Correct 122 ms 11780 KB Output is correct
31 Correct 113 ms 12140 KB Output is correct
32 Correct 130 ms 11244 KB Output is correct
33 Correct 115 ms 11256 KB Output is correct
34 Correct 51 ms 5384 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 432 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 600 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 436 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 153 ms 13532 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 82 ms 9728 KB Output is correct
53 Correct 68 ms 9480 KB Output is correct
54 Correct 72 ms 8968 KB Output is correct
55 Correct 73 ms 9476 KB Output is correct
56 Correct 74 ms 10080 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct

Subtask #6
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 113 ms 11704 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 1 ms 352 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 356 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 352 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Incorrect 1 ms 348 KB Output isn't correct
33 Halted 0 ms 0 KB -