Submission #570641

#	Time	Username	Problem	Language	Result	Execution time	Memory
570641		kkkkkkkk	Combo (IOI18_combo)	C++14	30 / 100	58 ms	448 KiB

combo

#include "combo.h"
#include <iostream>

using namespace std;

string guess_sequence(int N)
{
    string rez;
    char prva;
    if (press("AB"))
    {
        if (press("A"))
            rez="A",prva='A';
        else
            rez="B",prva='B';
    }
    else
    {
        if (press("X"))
            rez="X",prva='X';
        else
            rez="Y",prva='Y';
    }
    for (int i=1;i<N;i++)
    {
        if (prva=='A')
        {
            if (press(rez+"B")==rez.size()+1)
                rez+="B";
            else if (press(rez+"X")==rez.size()+1)
                rez+="X";
            else
                rez+="Y";
        }
        else if (prva=='B')
        {
            if (press(rez+"A")==rez.size()+1)
                rez+="A";
            else if (press(rez+"X")==rez.size()+1)
                rez+="X";
            else
                rez+="Y";
        }
        else if (prva=='X')
        {
            if (press(rez+"A")==rez.size()+1)
                rez+="A";
            else if (press(rez+"B")==rez.size()+1)
                rez+="B";
            else
                rez+="Y";
        }
        else
        {
            if (press(rez+"A")==rez.size()+1)
                rez+="A";
            else if (press(rez+"B")==rez.size()+1)
                rez+="B";
            else
                rez+="X";
        }
    }
    return rez;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:28:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |             if (press(rez+"B")==rez.size()+1)
      |                 ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:30:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |             else if (press(rez+"X")==rez.size()+1)
      |                      ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:37:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |             if (press(rez+"A")==rez.size()+1)
      |                 ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:39:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |             else if (press(rez+"X")==rez.size()+1)
      |                      ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:46:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             if (press(rez+"A")==rez.size()+1)
      |                 ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:48:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |             else if (press(rez+"B")==rez.size()+1)
      |                      ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:55:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |             if (press(rez+"A")==rez.size()+1)
      |                 ~~~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:57:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |             else if (press(rez+"B")==rez.size()+1)
      |                      ~~~~~~~~~~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 25 / 95