Submission #851462

#	Time	Username	Problem	Language	Result	Execution time	Memory
851462		_uros9	Combo (IOI18_combo)	C++17	5 / 100	1 ms	500 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
string za_prvoXposlednje(string tr){
    if(press(tr+"A"+tr+"B")>tr.size()){
        if(press(tr+"A")>tr.size())
            return "A";
        return "B";
    }
    if(press(tr+"X")>tr.size())
        return "X";
    return "Y";
}
string classic(string tr){
    vector<string> moguci(0);
    if(tr[0]!='A')moguci.push_back("A");
    if(tr[0]!='B')moguci.push_back("B");
    if(tr[0]!='X')moguci.push_back("X");
    if(tr[0]!='Y')moguci.push_back("Y");
    int napredak=press(tr+moguci[0]+tr+moguci[1]+moguci[0]+tr+moguci[1]+moguci[1]+tr+moguci[1]+moguci[2])-tr.size();
    if(napredak==1)
        return moguci[0];
    if(napredak==2)
        return moguci[1];
    return moguci[2];
}
string guess_sequence(int N){
    string rez="";
    rez+=za_prvoXposlednje(rez);
    for(int i=1; i<N-1; i++)
        rez+=classic(rez);
    rez+=za_prvoXposlednje(rez);
    return rez;
}

Compilation message (stderr)

combo.cpp: In function 'std::string za_prvoXposlednje(std::string)':
combo.cpp:5:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 |     if(press(tr+"A"+tr+"B")>tr.size()){
      |        ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
combo.cpp:6:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |         if(press(tr+"A")>tr.size())
      |            ~~~~~~~~~~~~~^~~~~~~~~~
combo.cpp:10:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     if(press(tr+"X")>tr.size())
      |        ~~~~~~~~~~~~~^~~~~~~~~~

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