Submission #160288

#	Time	Username	Problem	Language	Result	Execution time	Memory
160288		MarcoMendoza1	Combo (IOI18_combo)	C++14	100 / 100	62 ms	612 KiB

combo

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

using namespace std;

string r="",aux;
char arr[4];

string guess_sequence(int n){
  int ax1=press("AB");
  if(ax1==1){
        arr[1]='X';
        arr[3]='Y';
        if(press("A")){
            arr[2]='B';
            r="A";

        }else{
            arr[2]='A';
            r="B";

        }

    }else if(ax1==0){
        arr[1]='A';
        arr[2]='B';
        if(press("X")){
            arr[3]='Y';
            r="X";

        }else{
            arr[3]='X';
            r="Y";

        }

    }else{
        arr[1]='X';
        arr[3]='Y';
        arr[2]='B';
        r="AB";

        if(n==2){
            return r;

        }


    }
    int ax;
    while(r.size()<(n-1)){
        aux=r+arr[2]+r+arr[1]+arr[1]+r+arr[1]+arr[2]+r+arr[1]+arr[3];
        ax=press(aux);
        if(ax==r.size()){
            r=r+arr[3];

        }else if(ax==(r.size()+1)){
            r=r+arr[2];

        }else{
            r=r+arr[1];

        }

    }

    if(n>1){
        if(press(r+arr[1]+r+arr[2])==n){
            if(press(r+arr[1])==n){
                return r+arr[1];

            }else{
                return r+arr[2];

            }

        }else{
            return r+arr[3];

        }

    }else{
        return r;

    }

}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:51:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   51 |     while(r.size()<(n-1)){
      |           ~~~~~~~~^~~~~~
combo.cpp:54:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         if(ax==r.size()){
      |            ~~^~~~~~~~~~
combo.cpp:57:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         }else if(ax==(r.size()+1)){
      |                  ~~^~~~~~~~~~~~~~

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