제출 #128107

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
128107	2019-07-10 12:32:11	WannnabeIOI	콤보 (IOI18_combo)	C++14	5 / 100	50 ms	472 KiB

combo

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#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string guess_sequence(int N) {
  int x;
  string s;
  char ch[4]= {'A', 'B', 'X', 'Y'};
  if (press("AB") >= 1) x = press("A") != 1;
  else x = 2 + (press("X") < 1);
  s += ch[x];
  if (N == 1) return s;
  swap(ch[x], ch[3]);
  for (int i = 1; i < N - 1; i++) {
    x = press(s + ch[0] + ch[0] + s + ch[0] + ch[1] + s + ch[0] + ch[2] + s + ch[1]);
    if (x == i + 2) s+=ch[0];
    else if (x == i + 1) s+=ch[1];
    else s += ch[2];
  }
  if (press(s + ch[0] + s + ch[1]) == N) {
    if (press(s + ch[0]) == N) s += ch[0];
    else s += ch[1];
  } else s += ch[2];
  return s;
}
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 0 / 95