제출 #237402

#제출 시각아이디문제언어결과실행 시간메모리
237402dannber_BR콤보 (IOI18_combo)C++14
10 / 100
72 ms552 KiB
#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 = 0;

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

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

  int last_one = 0;
  for(int i = 2;i <= N;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;
}
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