Submission #125664

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
125664	2019-07-06 07:43:27	dragoon	Combo (IOI18_combo)	C++14	0 / 100	3 ms	264 KiB

combo

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#include "combo.h"
#include<string>
#include <assert.h>
#include <iostream>
#include <algorithm>
using namespace std;
string FindFirstChar() {
  if (press("AB")) {
    if (press("A")) return "A";
    else return "B";
  }
  if (press("X")) return "X";
  return "Y";
}
string guess_sequence(int N) {
  string now = FindFirstChar();
  if (N == 1) return now;
  string remaining = "ABXY";
  cout << now << "\n";
  remaining.erase(find(remaining.begin(), remaining.end(), now[0]));
  cout << remaining << "\n";
  assert(remaining.size() == 3);
  for (int i = 2; i < N; i++) {
    string current = (now + remaining[0])
      + (now + remaining[1] + remaining[0])
      + (now + remaining[1] + remaining[1])
      + (now + remaining[1] + remaining[2]);
    int coin = press(current);
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 95