Submission #237400

#	Time	Username	Problem	Language	Result	Execution time	Memory
237400		dannber_BR	Combo (IOI18_combo)	C++14	0 / 100	1 ms	200 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>

using namespace std;

string Btns[] = {"A","B","X","Y"};

string guess_sequence(int N) {
  string s = "";
  int p = -1;

  if (press(Btns[0] + Btns[1]) > 0) {
    if (press(Btns[0]) > 0)
    {
      s += Btns[0];
      if (p <= -1) p = 0;
    }
    else if (press(Btns[1]) > 0)
    {
      s += Btns[1];
      if (p <= -1) p = 1;
    }
  }
  else
  {
    if (press(Btns[2]) > 0)
    {
      s += Btns[0];
      if (p <= -1) p = 2;
    }
    else if (press(Btns[3]) > 0)
    {
      s += Btns[1];
      if (p <= -1) p = 3;
    }
  }

  if(N == 1)
  {
    return s;
  }


  int last_one = 0;
  for(int i = 2;i < N - 1;i++)
  {
    bool fact = false;
    if (press(s + Btns[last_one]) == i)
    {
          s += Btns[last_one];
          fact = true;
    }
    else if (fact == false)
    {
      for(int j = 0;j <= 3;j++)
      {
        if(j != p && !fact)
        {
          if(press(s + Btns[j]) == i)
          {
            s += Btns[j];
            fact = true;
            last_one = j;
            break;
          }
        }
      }
    }
  }
  return s;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95