Submission #894417

#	Time	Username	Problem	Language	Result	Execution time	Memory
894417		AtabayRajabli	Combo (IOI18_combo)	C++17	10 / 100	26 ms	1480 KiB

combo

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

using namespace std;

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 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: In function 'std::string guess_sequence(int)':
combo.cpp:15:20: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   15 |   while(res.size() < N)
      |         ~~~~~~~~~~~^~~
combo.cpp:20:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |       if(press(res + c) == res.size() + 1)
      |          ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~

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