Submission #210574

#	Time	Username	Problem	Language	Result	Execution time	Memory
210574		grobar	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>

using namespace std;

string guess_sequence(int n)
{
    string ss="";
    int a1=press("A");
    if(a1==1)
    {
        ss=ss+"A";
        for(int i=1;i<n;i++)
        {
            if(press(ss+"B")==i+1)
            {
                ss=ss+"B";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"X")==i+1)
            {
                ss=ss+"X";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"Y")==i+1)
            {
                ss=ss+"Y";
                if(ss.size()==n)
                {
                    break;
                }
            }
        }
    }
    int a2=press("B");
    if(a2==1)
    {
            ss=ss+"B";
        for(int i=1;i<n;i++)
        {
            if(press(ss+"A")==i+1)
            {
                ss=ss+"A";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"X")==i+1)
            {
                ss=ss+"X";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"Y")==i+1)
            {
                ss=ss+"Y";
                if(ss.size()==n)
                {
                    break;
                }
            }
        }
    }
    int a3=press("X");
    if(a3==1)
    {
            ss=ss+"X";
        for(int i=1;i<n;i++)
        {
            if(press(ss+"A")==i+1)
            {
                ss=ss+"A";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"B")==i+1)
            {
                ss=ss+"B";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"Y")==i+1)
            {
                ss=ss+"Y";
                if(ss.size()==n)
                {
                    break;
                }
            }
        }
    }
    int a4=press("Y");
    if(a4==1)
    {
            ss=ss+"Y";
        for(int i=1;i<n;i++)
        {
            if(press(ss+"A")==i+1)
            {
                ss=ss+"A";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"X")==i+1)
            {
                ss=ss+"X";
                if(ss.size()==n)
                {
                    break;
                }
            }
            if(press(ss+"B")==i+1)
            {
                ss=ss+"B";
                if(ss.size()==n)
                {
                    break;
                }
            }
        }

    }
    return ss;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:8:12: error: 'press' was not declared in this scope
    8 |     int a1=press("A");
      |            ^~~~~
combo.cpp:17:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   17 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:25:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   25 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:33:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:49:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   49 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:57:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   57 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:65:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   65 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:81:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   81 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:89:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   89 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:97:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   97 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:113:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  113 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:121:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  121 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~
combo.cpp:129:29: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  129 |                 if(ss.size()==n)
      |                    ~~~~~~~~~^~~