Submission #1043872

#	Time	Username	Problem	Language	Result	Execution time	Memory
1043872		Melanie_Menjivar	Combo (IOI18_combo)	C++14	0 / 100	0 ms	344 KiB

combo

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

// abreviaciones de datos y funciones de ellas
#define ll long long
#define st string
#define p pair
#define f first
#define s second
#define v vector
#define pb push_back
#define vll vector <long long>
#define vst vector<string>
#define vpll vector <pair<ll,ll>>
#define vvll v<vll>
#define as assign
#define pll pair<ll,ll>
#define matrizll v<vll>
#define matrizch v<v<char>>
#define itrll vll::iterator
#define itrst vst::iterator
#define itrpll vpll::iterator
#define all(x) x.begin(),x.end()
#define pq priority_queue
#define pq_ll pq <ll>
#define pq_st pq <st>
#define pq_pll pq<pll>

// abreviaciones funciones de impresion
#define espa ' '
#define en '\n'
#define coutv(a) for(auto x:a){cout<<x<<en;}
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl

//funciones comunes
#define rep(i,a,b) for(int i=a;i<b;i++)
#define repm(i,a) for(ll i=a;i>=0;i--)
#define test(t) while(t--)
#define sort(a) sort(a.begin(),a.end())
#define reverse(a) reverse(a.begin(),a.end());

using namespace std;


std::string guess_sequence(int n) {
  st S;
  int consu;
  string letras[3];
  rep(i,0,n){
    if(i==0){

      consu=press("AB");
      if(consu==0){
        if(press("X")==0){
          S+="Y";
          letras[0]="A";letras[1]="B";letras[2]="X";
        }else{
          S+="X";
          letras[0]="A";letras[1]="B";letras[2]="Y";

        }
      }else if(consu==1){
        if(press("A")==1){
          S+="A";
          letras[0]="B";letras[1]="X";letras[2]="Y";
        }else {
          S+="B";
          letras[0]="A";letras[1]="X";letras[2]="Y";
        }

      }else{
        S+="A";
        
        letras[0]="B";letras[1]="X";letras[2]="Y";
      }

    }else if(i==n-1){

      consu=press(letras[0]);
      if(consu==0){
        if(press(letras[1])==0){
          S+=letras[2];
        }else{
          S+=letras[1];
        }
      }else{
        S+=letras[0];
        
      }

    }else{
      consu=press(S+letras[0]+S+letras[1]+letras[0]+S+letras[1]+letras[1]+S+letras[1]+letras[2]);

      if(consu==S.size()+1){
        S+=letras[0];
      }else if(consu==S.size()+2){
        S+=letras[1];
      }else{
        S+=letras[2];
      }
    }

  }
  
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:95:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |       if(consu==S.size()+1){
      |          ~~~~~^~~~~~~~~~~~
combo.cpp:97:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |       }else if(consu==S.size()+2){
      |                ~~~~~^~~~~~~~~~~~

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