Submission #203386

#	Time	Username	Problem	Language	Result	Execution time	Memory
203386		0gnjen	Combo (IOI18_combo)	C++14	5 / 100	3 ms	256 KiB

combo

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

using namespace std;

std::string guess_sequence(int N)
{
    //cout << N << endl;
    string s = "";
    string c = "ABXY";

    if(press("AB"))
    {
        if(press("A"))
        {
            s += 'A';
            c.erase(c.begin());
        }

        else
        {
            s += 'B';
            c.erase(c.begin()+1);
        }
    }

    else
    {
        if(press("X"))
        {
            s += 'X';
            c.erase(c.begin()+2);
        }

        else
        {
            s += 'Y';
            c.erase(c.begin()+3);
        }
    }

    for(int i = 1; i < N-1; i++)
    {
        //cout << i << endl;
        int p = press(s+c[1]+s+c[2]+c[0]+s+c[2]+c[1]+s+c[2]+c[2]);

        if(p == s.size())
            s += c[0];

        if(p == s.size()+1)
            s += c[1];

        if(p == s.size()+2)
            s += c[2];
    }

    if(press(s+c[0]+s+c[1]) == s.size()+1)
    {
        if(press(s+c[0]) == s.size()+1)
            s += c[0];
        else
            s += c[1];
    }

    else
        s += c[2];

    return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:47:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         if(p == s.size())
      |            ~~^~~~~~~~~~~
combo.cpp:50:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         if(p == s.size()+1)
      |            ~~^~~~~~~~~~~~~
combo.cpp:53:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         if(p == s.size()+2)
      |            ~~^~~~~~~~~~~~~
combo.cpp:57:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     if(press(s+c[0]+s+c[1]) == s.size()+1)
      |        ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
combo.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         if(press(s+c[0]) == s.size()+1)
      |            ~~~~~~~~~~~~~~^~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 95