Submission #894413

#	Time	Username	Problem	Language	Result	Execution time	Memory
894413		AtabayRajabli	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

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

string guess_sequence(int N)
{
  string p = "ABXY";
  string res = "";
  if(press("A"))res = "A";
  else if(press("B"))res = "B";
  else if(press("X"))res = "X";
  else (press("Y"))res = "Y";

  while(res.size() < N)
  {
    for(char c : p)
    {
      if(c == res[0])continue;
      if(press(res + c) == res.size() + 1)
      {
        res += c;
        break;
      }
    }
  }

  return res;
}

Compilation message (stderr)

combo.cpp:4:1: error: 'string' does not name a type; did you mean 'stdin'?
    4 | string guess_sequence(int N)
      | ^~~~~~
      | stdin