oj.uz

Submission #646802

# Submission time Handle Problem Language Result Execution time Memory
646802 2022-09-30T17:33:31 Z slime Mechanical Doll (IOI18_doll) C++14
42.2 / 100
 89 ms 9620 KB 
#include "doll.h"
#include "bits/stdc++.h"
using namespace std;

void create_circuit(int M, std::vector<int> A);

void answer(std::vector<int> C, std::vector<int> X, std::vector<int> Y);

int lg(int x) {
  return 32 - __builtin_clz(x) - 1;
}
vector<int> X, Y;

void create_circuit(int M, std::vector<int> A) {
  int N = A.size();

  int freq[M+1];
  for(int i=1; i<=M; i++) freq[i] = 0;

  for(int i=0; i<N; i++) freq[A[i]]++;

  int ma = 0;
  for(int i=1; i<=M; i++) ma = max(ma, freq[i]);
  vector<int> C(M + 1);
  for(int i=0; i<=M; i++) C[i] = 0;
  C[0] = A[0];
  vector<int> sequence;
  vector<int> empty;
  for(int i=0; i+1<N; i++) {
    sequence.push_back(A[i+1]);
  }
  
  if(ma <= 1) {
    for(int i=0; i<N; i++) C[A[i]] = (i+1 == N ? 0 : A[i+1]);
    answer(C, empty, empty);
    return; 
  }
  for(int i=1; i<=M; i++) C[i] = -1;
  if(N % 2 == 0) sequence.push_back(-1);
  if(ma <= 4 || N == 16) {
    X.resize(N + lg(N));
    Y.resize(N + lg(N));
  }
  else if(M == 1) {
    if(N >= 200000) {
      X.resize(N + lg(N) + 1);
      Y.resize(N + lg(N) + 1);
    }
    else {
      X.resize(N + lg(N));
      Y.resize(N + lg(N));
    }
  }
  int L = sequence.size();
  
  int bitcount = 1 + lg(L);
  int nxt = 0;
  int uwu = bitcount;
  for(int i=bitcount-1; i>=0; i--) {
    int val = (1 << i);
    Y[nxt] = (i == 0 ? 12073412 : nxt+1);
    // tree of size val: val - 1 swithces
    if(!(L & (1 << i))) X[nxt] = 0;
    else X[nxt] = uwu;
    nxt++;
    if(!(L & (1 << i))) continue;
    int seq = uwu + 1;
    for(int j=uwu; j<uwu+val/2-1; j++) {
      X[j] = seq;
      seq++;
      Y[j] = seq;
      seq++;
    }
    for(int j=uwu+val/2-1; j<uwu+val-1; j++) {
      X[j] = Y[j] = -1;
    }
    uwu += val - 1;
  }

  // Non-negative: switch
  // -1: to-be trigger
  // -2: origin

  int id = 0;
  int visits = 0;
  int state[N + lg(N)];
  for(int i=0; i<N+lg(N); i++) state[i] = 0;


  while(1) {
    int cur = 0;
    int prv;
    char u;
    bool done = 0;
    while(1) {
      //if(cur == 12073412) cout << "end\n";
      //else if(cur != -1) cout << -(cur + 1) << "\n";
      if(cur == -1) {
        if(u == 'X') X[prv] = -(sequence[id] + 1);
        else Y[prv] = -(sequence[id] + 1);
       // cout << sequence[id] << "\n";
        id++;
        break;
      }
      else if(cur == 12073412) {
        done = 1;
        break;
      }
      else if(state[cur] == 0) {
        state[cur] ^= 1;
        prv = cur;
        u = 'X';
        cur = X[cur];
      }
      else {
        state[cur] ^= 1;
        prv = cur;
        u = 'Y';
        cur = Y[cur];
      }
    }
    visits++;
    if(done) break;
  }


  for(int i=0; i<N+lg(N); i++) {
    if(X[i] == 12073412) X[i] = 0;
    else X[i] = -(X[i] + 1);
    if(Y[i] == 12073412) Y[i] = 0;
    else Y[i] = -(Y[i] + 1);
  }


//  for(int i=0; i<N+lg(N); i++) cout << state[i];
 // cout << "\n";

  answer(C, X, Y);
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 16 ms 2768 KB Output is correct
3 Correct 13 ms 2128 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 8 ms 1876 KB Output is correct
6 Correct 21 ms 3148 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 16 ms 2768 KB Output is correct
3 Correct 13 ms 2128 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 8 ms 1876 KB Output is correct
6 Correct 21 ms 3148 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 57 ms 6476 KB Output is correct
9 Correct 58 ms 7116 KB Output is correct
10 Correct 89 ms 9620 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 16 ms 2768 KB Output is correct
3 Correct 13 ms 2128 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 8 ms 1876 KB Output is correct
6 Correct 21 ms 3148 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 57 ms 6476 KB Output is correct
9 Correct 58 ms 7116 KB Output is correct
10 Correct 89 ms 9620 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 83 ms 9152 KB Output is correct
15 Correct 53 ms 6532 KB Output is correct
16 Correct 82 ms 8836 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 84 ms 9340 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct

Subtask #5
16.1999718912 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 50 ms 5568 KB Output is correct
3 Correct 48 ms 5552 KB Output is correct
4 Partially correct 80 ms 8300 KB Output is partially correct

Subtask #6
0.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 50 ms 5568 KB Output is correct
3 Correct 48 ms 5552 KB Output is correct
4 Partially correct 80 ms 8300 KB Output is partially correct
5 Runtime error 21 ms 6080 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -