Submission #958390

#	Time	Username	Problem	Language	Result	Execution time	Memory
958390		AkibAzmain	Mechanical Doll (IOI18_doll)	C++17	6 / 100	52 ms	12352 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

void create_circuit(int m, std::vector<int> a) {
  int p = 0;
  a.push_back (0);
  vector < vector < int > > adj (m + 1);
  for (auto &x : a) adj[p].push_back (x), p = x;
  vector < int > c (m + 1), x, y;
  x.reserve (a.size () * 2);
  y.reserve (a.size () * 2);
  for (int i = 0; i <= m; ++i)
    {
      if (adj[i].empty ()) continue;
      auto f = [&] (auto &self, int &p, int l, int r) -> void
      {
        if (l + 1 == r) p = adj[i][l];
        else
          {
            int m = (l + r) / 2;
            x.push_back (0), y.push_back (0);
            p = -x.size ();
            self (self, x.back (), l, m);
            self (self, y.back (), m, r);
          }
      };
      f (f, c[i], 0, adj[i].size ());
    }
  answer (c, x, y);
}

• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56