oj.uz

Submission #1095315

# Submission time Handle Problem Language Result Execution time Memory
1095315 2024-10-01T20:58:52 Z raphaelp Team Coding (EGOI24_teamcoding) C++14
19 / 100
 4000 ms 41344 KB 
#include <bits/stdc++.h>
using namespace std;
void dfs(int x, vector<vector<int>> &AR, vector<int> &depth, int cur)
{
    depth[x] = cur;
    for (int i = 0; i < AR[x].size(); i++)
    {
        dfs(AR[x][i], AR, depth, cur + 1);
    }
}
void dfs2(int x, vector<vector<int>> &AR, vector<vector<pair<int, int>>> &colorpos, vector<int> &available, map<int, int> &M, vector<int> &C, vector<vector<int>> &colors, int cur, int &best, int &best2)
{
    available.push_back(1);
    vector<int> available2;
    map<int, int> M2;
    M[C[x]] += 1;
    for (int i = 0; i < AR[x].size(); i++)
    {
        available2.clear();
        M2.clear();
        dfs2(AR[x][i], AR, colorpos, available2, M2, C, colors, cur + 1, best, best2);
        available2.push_back(0);
        if (available2.size() > available.size())
            swap(available2, available);
        for (int j = 0; j < available2.size(); j++)
        {
            available[j + available.size() - available2.size()] += available2[j];
        }
        if (M2.size() > M.size())
            swap(M, M2);
        for (auto j : M2)
        {
            M[j.first] += j.second;
        }
    }
    if (colors[C[x]].size() < sqrt(AR.size()))
    {
        int ans1 = 0, ans2 = 0;
        for (int i = 0; i < colorpos[C[x]].size(); i++)
        {
            if (colorpos[C[x]][i].first >= cur)
                ans1 += min(colorpos[C[x]][i].second, available[available.size() - colorpos[C[x]][i].first - 1 + cur]);
        }
        ans2 = ans1 - M[C[x]];
        if (ans1 > best || (ans1 == best && ans2 < best2))
        {
            best = ans1, best2 = ans2;
        }
    }
}
int dfs3(int x, vector<vector<int>> &AR, vector<int> &C, int c, vector<int> &used, vector<int> &maxx, int cur, int &best, int &best2, int &bla)
{
    vector<int> used2;
    int tot = 0, tot2 = 0;
    if (C[x] == c)
        tot2++;
    used.push_back(0);
    if (maxx[cur] != 0)
    {
        used[0] = 1;
        tot++;
    }
    for (int i = 0; i < AR[x].size(); i++)
    {
        used2.clear();
        tot2 += dfs3(AR[x][i], AR, C, c, used2, maxx, cur + 1, best, best2, bla);
        used2.push_back(0);
        if (used2.size() > used.size())
        {
            swap(used2, used);
            swap(tot, bla);
        }
        for (int j = 0; j < used2.size(); j++)
        {
            tot -= used[j + used.size() - used2.size()];
            used[j + used.size() - used2.size()] = min(used[j + used.size() - used2.size()] + used2[j], maxx[cur + used2.size() - j - 1]);
            tot += used[j + used.size() - used2.size()];
        }
    }
    if (C[x] == c && (tot > best || (tot == best && tot2 < best2)))
    {
        best = tot, best2 = tot - tot2;
    }
    bla = tot;
    return tot2;
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int N, K;
    cin >> N >> K;
    vector<int> C(N);
    vector<vector<int>> colors(K);
    for (int i = 0; i < N; i++)
    {
        cin >> C[i];
        colors[C[i]].push_back(i);
    }
    vector<int> p(N, 0);
    vector<vector<int>> AR(N);
    for (int i = 1; i < N; i++)
    {
        cin >> p[i];
        AR[p[i]].push_back(i);
    }
    vector<int> depth(N);
    vector<vector<pair<int, int>>> colorpos(K);
    dfs(0, AR, depth, 0);
    int best = 0, best2 = 0;
    for (int i = 0; i < K; i++)
    {
        for (int j = 0; j < colors[i].size(); j++)
        {
            colorpos[i].push_back({depth[colors[i][j]], 1});
        }
        sort(colorpos[i].begin(), colorpos[i].end());
        vector<pair<int, int>> temp;
        int cur = 0;
        for (int j = 0; j < colors[i].size(); j++)
        {
            if (j > 0 && colorpos[i][j].first != colorpos[i][j - 1].first)
            {
                temp.push_back({colorpos[i][j - 1].first, cur});
                cur = 0;
            }
            cur++;
        }
        if (colors[i].size() > 0)
            temp.push_back({colorpos[i].back().first, cur});
        swap(temp, colorpos[i]);
    }
    vector<int> available;
    map<int, int> M;
    // dfs2(0, AR, colorpos, available, M, C, colors, 0, best, best2);
    for (int i = 0; i < K; i++)
    {
        if (true) //(colors[i].size() >= sqrt(N))
        {
            vector<int> used, maxx(N);
            for (int j = 0; j < colors[i].size(); j++)
                maxx[depth[colors[i][j]]]++;
            int bla = 0;
            int temp = dfs3(0, AR, C, i, used, maxx, 0, best, best2, bla);
        }
    }
    cout << best << ' ' << best2;
}

Compilation message

Main.cpp: In function 'void dfs(int, std::vector<std::vector<int> >&, std::vector<int>&, int)':
Main.cpp:6:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |     for (int i = 0; i < AR[x].size(); i++)
      |                     ~~^~~~~~~~~~~~~~
Main.cpp: In function 'void dfs2(int, std::vector<std::vector<int> >&, std::vector<std::vector<std::pair<int, int> > >&, std::vector<int>&, std::map<int, int>&, std::vector<int>&, std::vector<std::vector<int> >&, int, int&, int&)':
Main.cpp:17:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for (int i = 0; i < AR[x].size(); i++)
      |                     ~~^~~~~~~~~~~~~~
Main.cpp:25:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for (int j = 0; j < available2.size(); j++)
      |                         ~~^~~~~~~~~~~~~~~~~~~
Main.cpp:39:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for (int i = 0; i < colorpos[C[x]].size(); i++)
      |                         ~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp: In function 'int dfs3(int, std::vector<std::vector<int> >&, std::vector<int>&, int, std::vector<int>&, std::vector<int>&, int, int&, int&, int&)':
Main.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |     for (int i = 0; i < AR[x].size(); i++)
      |                     ~~^~~~~~~~~~~~~~
Main.cpp:73:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |         for (int j = 0; j < used2.size(); j++)
      |                         ~~^~~~~~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:114:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  114 |         for (int j = 0; j < colors[i].size(); j++)
      |                         ~~^~~~~~~~~~~~~~~~~~
Main.cpp:121:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  121 |         for (int j = 0; j < colors[i].size(); j++)
      |                         ~~^~~~~~~~~~~~~~~~~~
Main.cpp:142:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  142 |             for (int j = 0; j < colors[i].size(); j++)
      |                             ~~^~~~~~~~~~~~~~~~~~
Main.cpp:145:17: warning: unused variable 'temp' [-Wunused-variable]
  145 |             int temp = dfs3(0, AR, C, i, used, maxx, 0, best, best2, bla);
      |                 ^~~~

Subtask #1
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 456 KB Output is correct
8 Correct 5 ms 1116 KB Output is correct
9 Execution timed out 4078 ms 41344 KB Time limit exceeded
10 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 1116 KB Output is correct
5 Correct 47 ms 35904 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 29 ms 7772 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 644 KB Output is correct
11 Correct 55 ms 21148 KB Output is correct
12 Correct 15 ms 6116 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 38 ms 7636 KB Output is correct
16 Correct 38 ms 7508 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 38 ms 7772 KB Output is correct
20 Correct 40 ms 7864 KB Output is correct
21 Correct 41 ms 7832 KB Output is correct
22 Correct 0 ms 344 KB Output is correct

Subtask #3
0.0 / 27.0

# 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 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 452 KB Output is correct
8 Execution timed out 4100 ms 41332 KB Time limit exceeded
9 Halted 0 ms 0 KB -

Subtask #4
0.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 4 ms 1116 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 231 ms 1200 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 860 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 600 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 456 KB Output is correct
23 Correct 100 ms 604 KB Output is correct
24 Correct 37 ms 644 KB Output is correct
25 Correct 106 ms 720 KB Output is correct
26 Correct 75 ms 860 KB Output is correct
27 Correct 144 ms 860 KB Output is correct
28 Correct 108 ms 604 KB Output is correct
29 Correct 145 ms 732 KB Output is correct
30 Correct 199 ms 856 KB Output is correct
31 Correct 4 ms 604 KB Output is correct
32 Correct 15 ms 604 KB Output is correct
33 Incorrect 16 ms 728 KB Output isn't correct
34 Halted 0 ms 0 KB -

Subtask #5
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 456 KB Output is correct
8 Correct 5 ms 1116 KB Output is correct
9 Execution timed out 4078 ms 41344 KB Time limit exceeded
10 Halted 0 ms 0 KB -