Submission #483578

#	Time	Username	Problem	Language	Result	Execution time	Memory
483578		_Body	Combo (IOI18_combo)	C++17	100 / 100	32 ms	592 KiB

combo

#include "combo.h"
#include<bits/stdc++.h>
using namespace std;
string guess_sequence(int N) {
    string in="";
int f=press("AB");

if(f>=1)
{
    if(press("A")>=1)
            in="A";
    else in="B";
}
else
{
 if(press("X"))
        in="X";
 else in="Y";
}
char cc[4]={'X','Y','A','B'};
vector<char>chars;
for(int i=0;i<4;i++)
    if(in.compare(string(1,cc[i]))!=0){
   // cout<<in.compare(to_string(cc[i]))<<" "<<to_string(cc[i])<<endl;
    chars.push_back(cc[i]);
    }
//for(char ccc:chars)
  //  cout<<ccc<<endl;
//cout<<in<<endl;
string S=in;
while(S.size()!=N)
{
    if(S.size()==N-1)
    {
        f=press(S+chars[0]);
        if(f==N)
        {
            S+=chars[0];
        }
        else
        {
            f=press(S+chars[1]+chars[2]);
            if(f==N)
            {
                S+=chars[1];
            }
            else S+=chars[2];
        }
        break;
    }
    f=press(S+chars[0]+S+chars[1]+chars[2]+S+chars[1]+chars[0]+S+chars[1]+chars[1]);

    //cout<<(S+chars[0]+S+chars[1]+chars[2]+S+chars[1]+chars[0]+S+chars[1]+chars[1])<<endl;
   // cout<<f<<" "<<S.size()<<endl;
    if(f==S.size()+1){
      //  cout<<"F"<<endl;
        S+=chars[0];
        }
    else if(f==S.size()+2){
   //   cout<<"F"<<endl;
        S+=chars[1];
        }
    else{
  //cout<<"FUCK"<<endl;
        S+=chars[2];
}}
//cout<<S<<endl;
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:31:15: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   31 | while(S.size()!=N)
      |       ~~~~~~~~^~~
combo.cpp:33:16: 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(S.size()==N-1)
      |        ~~~~~~~~^~~~~
combo.cpp:55:9: 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(f==S.size()+1){
      |        ~^~~~~~~~~~~~
combo.cpp:59:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     else if(f==S.size()+2){
      |             ~^~~~~~~~~~~~

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