oj.uz

Submission #500068

# Submission time Handle Problem Language Result Execution time Memory
500068 2021-12-30T10:00:57 Z 600Mihnea Amusement Park (JOI17_amusement_park) C++17
83 / 100
 32 ms 5472 KB 
#include "Joi.h"
#include <bits/stdc++.h>

using namespace std;

const int BITS = 60;

mt19937 reng(7777777);


void Joi(int N, int M, int A[], int B[], long long X, int T) {
  int root = reng() % N;
  vector<vector<int>> g(N);
  vector<int> color(N, -1);

  for (int i = 0; i < M; i++) {
    g[A[i]].push_back(B[i]);
    g[B[i]].push_back(A[i]);
  }


  vector<bool> vis(N, 0);
  vector<vector<int>> ng(N);

  function<void(int)> makeG = [&] (int a) {
    vis[a] = 1;
    for (auto &b : g[a]) {
      if (!vis[b]) {
        ng[a].push_back(b);
        makeG(b);
      }
    }
  };
  makeG(root);
  g = ng;


  function<void(int)> draw = [&] (int a) {
    vector<int> all;
    queue<int> q;
    q.push(a);
    all.push_back(a);
    while (!q.empty()) {
      int x = q.front();
      q.pop();
      for (auto &y : g[x]) {
        if ((int) all.size() + 1 > BITS) break;
        q.push(y);
        all.push_back(y);
      }
    }
    assert((int) all.size() <= BITS);
    for (int i = 0; i < (int) all.size(); i++) {
      color[all[i]] = i;
    }
    for (int i = 0; i < (int) all.size(); i++) {
      for (auto &v : g[all[i]]) {
        if (color[v] == -1) {
          draw(v);
        }
      }
    }
  };
  draw(root);
  for (auto &x : color) assert(0 <= x && x < BITS);


  vector<int> numBits(BITS);
  for (int i = 0; i < BITS; i++) {
    if (X & (1LL << i)) {
      numBits[i] = 1;
    } else {
      numBits[i] = 0;
    }
  }



  for(int i = 0; i < N; i++) {
    MessageBoard(i, numBits[color[i]]);
  }
}



#include "Ioi.h"

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int BITS = 60;
mt19937 rng(7777777);

long long Ioi(int N, int M, int A[], int B[], int P, int V, int T) {
  int root = rng() % N;
  vector<vector<int>> g(N);
  vector<int> color(N, -1);
  vector<int> parrent(N, -1);

  for (int i = 0; i < M; i++) {
    g[A[i]].push_back(B[i]);
    g[B[i]].push_back(A[i]);
  }

  vector<bool> vis(N, 0);
  vector<int> sub(N);
  vector<vector<int>> ng(N);

  function<void(int)> makeG = [&] (int a) {
    vis[a] = 1;
    sub[a] = 1;
    for (auto &b : g[a]) {
      if (!vis[b]) {
        ng[a].push_back(b);
        makeG(b);
        parrent[b] = a;
        sub[a] += sub[b];
      }
    }
  };
  makeG(root);
  g = ng;

  map<int, vector<pair<int, int>>> guys;
  vector<int> who(N);

  function<void(int)> draw = [&] (int a) {
    vector<pair<int, int>> all;
    queue<int> q;
    q.push(a);
    vector<int> vrts = {a};
    while (!q.empty()) {
      int x = q.front();
      q.pop();
      for (auto &y : g[x]) {
        if ((int) vrts.size() + 1 > BITS) break;
        q.push(y);
        vrts.push_back(y);
        all.push_back({x, y});
      }
    }
    guys[a] = all;
    assert((int) all.size() <= BITS);
    for (int i = 0; i < (int) vrts.size(); i++) {
      color[vrts[i]] = i;
      who[vrts[i]] = a;
    }
    for (int i = 0; i < (int) vrts.size(); i++) {
      for (auto &v : g[vrts[i]]) {
        if (color[v] == -1) {

          draw(v);
        }
      }
    }
  };
  draw(root);
  ll solu = 0;
  int done = 0;

  set<pair<int, int>> s;

  while (sub[P] < BITS) {
    s.insert({P, parrent[P]});
    s.insert({parrent[P], P});
    V = Move(parrent[P]);
    P = parrent[P];
  }
  vector<pair<int, int>> all = guys[who[P]];

  function<bool(pair<int, int>, pair<int, int>)> cmp = [&] (pair<int, int> a, pair<int, int> b) {
    return s.count(a) < s.count(b);
  };

  sort(all.begin(), all.end(), cmp);

  for (int i = 0; i < N; i++) g[i].clear();

  for (auto &it : all) g[it.first].push_back(it.second), g[it.second].push_back(it.first);

  vector<int> dep(N);

  function<void(int, int)> cdep = [&] (int a, int p) {
    dep[a] = 0;
    for (auto &b : g[a]) {
      if (b != p) {
        cdep(b, a);
        dep[a] = max(dep[a], 1 + dep[b]);
      }
    }
  };

  function<void(int, int)> expl = [&] (int a, int p) {
    solu |= (1LL << color[a]) * V;
    done++;
    int v = -1;
    for (auto &b : g[a]) {
      if (b == p) continue;
      if (v == -1) v = b;
      else if (dep[b] > dep[v]) v = b;
    }
    for (auto &b : g[a]) {
      if (b == p || b == v) continue;
      if (done == BITS) break;
      V = Move(b);
      if (done == BITS) break;
      expl(b, a);
      if (done == BITS) break;
      V = Move(a);
      if (done == BITS) break;
    }
    for (auto &b : g[a]) {
      if (b == p || b != v) continue;
      if (done == BITS) break;
      V = Move(b);
      if (done == BITS) break;
      expl(b, a);
      if (done == BITS) break;
      V = Move(a);
      if (done == BITS) break;
    }
  };

  cdep(P, -1);
  expl(P, -1);

  assert(done == BITS);
  for (auto &x : color) assert(0 <= x && x < BITS);



  vector<int> numBits(BITS, -1);
  int needBits = BITS;


  return solu;
}

Compilation message

Ioi.cpp: In function 'long long int Ioi(int, int, int*, int*, int, int, int)':
Ioi.cpp:151:7: warning: unused variable 'needBits' [-Wunused-variable]
  151 |   int needBits = BITS;
      |       ^~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 496 KB Output is correct
2 Correct 1 ms 740 KB Output is correct
3 Correct 1 ms 748 KB Output is correct
4 Correct 0 ms 616 KB Output is correct
5 Correct 0 ms 748 KB Output is correct
6 Correct 1 ms 744 KB Output is correct
7 Correct 1 ms 748 KB Output is correct
8 Correct 1 ms 756 KB Output is correct
9 Correct 0 ms 756 KB Output is correct
10 Correct 1 ms 756 KB Output is correct
11 Correct 4 ms 932 KB Output is correct
12 Correct 0 ms 488 KB Output is correct
13 Correct 2 ms 760 KB Output is correct
14 Correct 1 ms 744 KB Output is correct
15 Correct 0 ms 756 KB Output is correct
16 Correct 2 ms 748 KB Output is correct
17 Correct 2 ms 756 KB Output is correct
18 Correct 2 ms 748 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 5428 KB Output is correct
2 Correct 24 ms 5452 KB Output is correct
3 Correct 24 ms 5456 KB Output is correct
4 Correct 17 ms 3620 KB Output is correct
5 Correct 16 ms 5324 KB Output is correct
6 Correct 16 ms 4424 KB Output is correct
7 Correct 16 ms 4472 KB Output is correct
8 Correct 15 ms 4020 KB Output is correct
9 Correct 16 ms 4280 KB Output is correct
10 Correct 20 ms 4052 KB Output is correct
11 Correct 17 ms 3908 KB Output is correct
12 Correct 14 ms 3236 KB Output is correct
13 Correct 15 ms 3272 KB Output is correct
14 Correct 16 ms 3368 KB Output is correct
15 Correct 18 ms 3780 KB Output is correct
16 Correct 18 ms 3768 KB Output is correct
17 Correct 17 ms 3644 KB Output is correct
18 Correct 16 ms 3672 KB Output is correct
19 Correct 17 ms 3640 KB Output is correct
20 Correct 11 ms 3968 KB Output is correct
21 Correct 11 ms 4280 KB Output is correct
22 Correct 17 ms 3944 KB Output is correct
23 Correct 15 ms 4324 KB Output is correct
24 Correct 15 ms 4416 KB Output is correct
25 Correct 16 ms 4536 KB Output is correct
26 Correct 15 ms 4424 KB Output is correct
27 Correct 14 ms 4284 KB Output is correct
28 Correct 14 ms 4284 KB Output is correct
29 Correct 13 ms 4148 KB Output is correct
30 Correct 13 ms 4156 KB Output is correct
31 Correct 0 ms 624 KB Output is correct
32 Correct 1 ms 744 KB Output is correct
33 Correct 2 ms 756 KB Output is correct
34 Correct 1 ms 752 KB Output is correct
35 Correct 1 ms 760 KB Output is correct
36 Correct 1 ms 616 KB Output is correct
37 Correct 1 ms 624 KB Output is correct
38 Correct 1 ms 616 KB Output is correct
39 Correct 0 ms 496 KB Output is correct
40 Correct 0 ms 624 KB Output is correct
41 Correct 1 ms 732 KB Output is correct
42 Correct 1 ms 484 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 616 KB Output is correct
2 Correct 1 ms 744 KB Output is correct
3 Correct 1 ms 616 KB Output is correct
4 Correct 3 ms 1284 KB Output is correct
5 Correct 3 ms 1284 KB Output is correct
6 Correct 3 ms 1296 KB Output is correct
7 Correct 2 ms 1296 KB Output is correct
8 Correct 4 ms 1300 KB Output is correct
9 Correct 17 ms 5120 KB Output is correct
10 Correct 13 ms 4792 KB Output is correct
11 Correct 12 ms 5448 KB Output is correct
12 Correct 0 ms 620 KB Output is correct
13 Correct 0 ms 616 KB Output is correct
14 Correct 2 ms 596 KB Output is correct
15 Correct 0 ms 612 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 5452 KB Output is correct
2 Correct 32 ms 5368 KB Output is correct
3 Correct 26 ms 5416 KB Output is correct
4 Correct 20 ms 3560 KB Output is correct
5 Correct 25 ms 4812 KB Output is correct
6 Correct 19 ms 4256 KB Output is correct
7 Correct 18 ms 4416 KB Output is correct
8 Correct 17 ms 4100 KB Output is correct
9 Correct 19 ms 4108 KB Output is correct
10 Correct 19 ms 3960 KB Output is correct
11 Correct 20 ms 3944 KB Output is correct
12 Correct 17 ms 3244 KB Output is correct
13 Correct 15 ms 3316 KB Output is correct
14 Correct 15 ms 3424 KB Output is correct
15 Correct 14 ms 3856 KB Output is correct
16 Correct 15 ms 3772 KB Output is correct
17 Correct 16 ms 3640 KB Output is correct
18 Correct 17 ms 3640 KB Output is correct
19 Correct 16 ms 3648 KB Output is correct
20 Correct 20 ms 3864 KB Output is correct
21 Correct 14 ms 4292 KB Output is correct
22 Correct 19 ms 4336 KB Output is correct
23 Correct 17 ms 4152 KB Output is correct
24 Correct 15 ms 4476 KB Output is correct
25 Correct 15 ms 3904 KB Output is correct
26 Correct 16 ms 4496 KB Output is correct
27 Correct 15 ms 4420 KB Output is correct
28 Correct 19 ms 4524 KB Output is correct
29 Correct 15 ms 4004 KB Output is correct
30 Correct 19 ms 3868 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 5444 KB Output is correct
2 Correct 25 ms 5472 KB Output is correct
3 Correct 23 ms 5400 KB Output is correct
4 Correct 17 ms 3632 KB Output is correct
5 Correct 18 ms 4552 KB Output is correct
6 Correct 15 ms 4412 KB Output is correct
7 Correct 17 ms 4156 KB Output is correct
8 Correct 16 ms 4160 KB Output is correct
9 Correct 20 ms 4312 KB Output is correct
10 Correct 18 ms 4040 KB Output is correct
11 Correct 16 ms 4048 KB Output is correct
12 Correct 14 ms 3248 KB Output is correct
13 Correct 13 ms 3376 KB Output is correct
14 Correct 19 ms 3340 KB Output is correct
15 Correct 16 ms 3780 KB Output is correct
16 Correct 16 ms 3780 KB Output is correct
17 Correct 15 ms 3656 KB Output is correct
18 Incorrect 16 ms 3560 KB Output isn't correct
19 Halted 0 ms 0 KB -