Am I a Rude Number?












3












$begingroup$


For a while now, I've been running into a problem when counting on my fingers, specifically, that I can only count to ten. My solution to that problem has been to count in binary on my fingers, putting up my thumb for one, my forefinger for two, both thumb and forefinger for three, etc. However, we run into a bit of a problem when we get to the number four. Specifically, it requires us to put up our middle finger, which results in a rather unfortunate gesture, which is not typically accepted in society. This type of number is a rude number. We come to the next rude number at 36, when we raise the thumb on our second hand and the middle finger of our first hand. The definition of a rude number is any number that, under this system of counting, results in us putting up only the middle finger of any hand. Once we pass 1023 (the maximum number reachable on one hand), assume we continue with a third hand, with additional hands added as required.



Your Task:



Write a program or function that receives an input and outputs a truthy/falsy value based on whether the input is a rude number.



Input:



An integer between 0 and 10^9 (inclusive).



Output:



A truthy/falsy value that indicates whether the input is a rude number.



Test Cases:



Input:    Output:
0 ---> falsy
3 ---> falsy
4 ---> truthy
25 ---> falsy
36 ---> truthy
127 ---> falsy
131 ---> truthy


Scoring:



This is code-golf, so the lowest score in bytes wins.










share|improve this question











$endgroup$








  • 2




    $begingroup$
    assume we continue with a third hand, When it comes to being rude, teamwork makes the dream work.
    $endgroup$
    – Veskah
    1 hour ago






  • 1




    $begingroup$
    @Veskah turns out that for the bounds of the question, you only need 3 people to make any given number. Sure beats the old kind of counting on fingers.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    Also, I don't have the time at the moment, but if anyone could figure out an equation for this sequence, that'd be great.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    You can reach 1023 on one hand? O_o
    $endgroup$
    – ASCII-only
    24 mins ago










  • $begingroup$
    BTW, pretty sure there is no short equation for this sequence, but you could (kinda) make a separate equation for each hand
    $endgroup$
    – ASCII-only
    12 mins ago
















3












$begingroup$


For a while now, I've been running into a problem when counting on my fingers, specifically, that I can only count to ten. My solution to that problem has been to count in binary on my fingers, putting up my thumb for one, my forefinger for two, both thumb and forefinger for three, etc. However, we run into a bit of a problem when we get to the number four. Specifically, it requires us to put up our middle finger, which results in a rather unfortunate gesture, which is not typically accepted in society. This type of number is a rude number. We come to the next rude number at 36, when we raise the thumb on our second hand and the middle finger of our first hand. The definition of a rude number is any number that, under this system of counting, results in us putting up only the middle finger of any hand. Once we pass 1023 (the maximum number reachable on one hand), assume we continue with a third hand, with additional hands added as required.



Your Task:



Write a program or function that receives an input and outputs a truthy/falsy value based on whether the input is a rude number.



Input:



An integer between 0 and 10^9 (inclusive).



Output:



A truthy/falsy value that indicates whether the input is a rude number.



Test Cases:



Input:    Output:
0 ---> falsy
3 ---> falsy
4 ---> truthy
25 ---> falsy
36 ---> truthy
127 ---> falsy
131 ---> truthy


Scoring:



This is code-golf, so the lowest score in bytes wins.










share|improve this question











$endgroup$








  • 2




    $begingroup$
    assume we continue with a third hand, When it comes to being rude, teamwork makes the dream work.
    $endgroup$
    – Veskah
    1 hour ago






  • 1




    $begingroup$
    @Veskah turns out that for the bounds of the question, you only need 3 people to make any given number. Sure beats the old kind of counting on fingers.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    Also, I don't have the time at the moment, but if anyone could figure out an equation for this sequence, that'd be great.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    You can reach 1023 on one hand? O_o
    $endgroup$
    – ASCII-only
    24 mins ago










  • $begingroup$
    BTW, pretty sure there is no short equation for this sequence, but you could (kinda) make a separate equation for each hand
    $endgroup$
    – ASCII-only
    12 mins ago














3












3








3





$begingroup$


For a while now, I've been running into a problem when counting on my fingers, specifically, that I can only count to ten. My solution to that problem has been to count in binary on my fingers, putting up my thumb for one, my forefinger for two, both thumb and forefinger for three, etc. However, we run into a bit of a problem when we get to the number four. Specifically, it requires us to put up our middle finger, which results in a rather unfortunate gesture, which is not typically accepted in society. This type of number is a rude number. We come to the next rude number at 36, when we raise the thumb on our second hand and the middle finger of our first hand. The definition of a rude number is any number that, under this system of counting, results in us putting up only the middle finger of any hand. Once we pass 1023 (the maximum number reachable on one hand), assume we continue with a third hand, with additional hands added as required.



Your Task:



Write a program or function that receives an input and outputs a truthy/falsy value based on whether the input is a rude number.



Input:



An integer between 0 and 10^9 (inclusive).



Output:



A truthy/falsy value that indicates whether the input is a rude number.



Test Cases:



Input:    Output:
0 ---> falsy
3 ---> falsy
4 ---> truthy
25 ---> falsy
36 ---> truthy
127 ---> falsy
131 ---> truthy


Scoring:



This is code-golf, so the lowest score in bytes wins.










share|improve this question











$endgroup$




For a while now, I've been running into a problem when counting on my fingers, specifically, that I can only count to ten. My solution to that problem has been to count in binary on my fingers, putting up my thumb for one, my forefinger for two, both thumb and forefinger for three, etc. However, we run into a bit of a problem when we get to the number four. Specifically, it requires us to put up our middle finger, which results in a rather unfortunate gesture, which is not typically accepted in society. This type of number is a rude number. We come to the next rude number at 36, when we raise the thumb on our second hand and the middle finger of our first hand. The definition of a rude number is any number that, under this system of counting, results in us putting up only the middle finger of any hand. Once we pass 1023 (the maximum number reachable on one hand), assume we continue with a third hand, with additional hands added as required.



Your Task:



Write a program or function that receives an input and outputs a truthy/falsy value based on whether the input is a rude number.



Input:



An integer between 0 and 10^9 (inclusive).



Output:



A truthy/falsy value that indicates whether the input is a rude number.



Test Cases:



Input:    Output:
0 ---> falsy
3 ---> falsy
4 ---> truthy
25 ---> falsy
36 ---> truthy
127 ---> falsy
131 ---> truthy


Scoring:



This is code-golf, so the lowest score in bytes wins.







code-golf number decision-problem






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 51 mins ago







Gryphon

















asked 1 hour ago









GryphonGryphon

3,1891963




3,1891963








  • 2




    $begingroup$
    assume we continue with a third hand, When it comes to being rude, teamwork makes the dream work.
    $endgroup$
    – Veskah
    1 hour ago






  • 1




    $begingroup$
    @Veskah turns out that for the bounds of the question, you only need 3 people to make any given number. Sure beats the old kind of counting on fingers.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    Also, I don't have the time at the moment, but if anyone could figure out an equation for this sequence, that'd be great.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    You can reach 1023 on one hand? O_o
    $endgroup$
    – ASCII-only
    24 mins ago










  • $begingroup$
    BTW, pretty sure there is no short equation for this sequence, but you could (kinda) make a separate equation for each hand
    $endgroup$
    – ASCII-only
    12 mins ago














  • 2




    $begingroup$
    assume we continue with a third hand, When it comes to being rude, teamwork makes the dream work.
    $endgroup$
    – Veskah
    1 hour ago






  • 1




    $begingroup$
    @Veskah turns out that for the bounds of the question, you only need 3 people to make any given number. Sure beats the old kind of counting on fingers.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    Also, I don't have the time at the moment, but if anyone could figure out an equation for this sequence, that'd be great.
    $endgroup$
    – Gryphon
    1 hour ago










  • $begingroup$
    You can reach 1023 on one hand? O_o
    $endgroup$
    – ASCII-only
    24 mins ago










  • $begingroup$
    BTW, pretty sure there is no short equation for this sequence, but you could (kinda) make a separate equation for each hand
    $endgroup$
    – ASCII-only
    12 mins ago








2




2




$begingroup$
assume we continue with a third hand, When it comes to being rude, teamwork makes the dream work.
$endgroup$
– Veskah
1 hour ago




$begingroup$
assume we continue with a third hand, When it comes to being rude, teamwork makes the dream work.
$endgroup$
– Veskah
1 hour ago




1




1




$begingroup$
@Veskah turns out that for the bounds of the question, you only need 3 people to make any given number. Sure beats the old kind of counting on fingers.
$endgroup$
– Gryphon
1 hour ago




$begingroup$
@Veskah turns out that for the bounds of the question, you only need 3 people to make any given number. Sure beats the old kind of counting on fingers.
$endgroup$
– Gryphon
1 hour ago












$begingroup$
Also, I don't have the time at the moment, but if anyone could figure out an equation for this sequence, that'd be great.
$endgroup$
– Gryphon
1 hour ago




$begingroup$
Also, I don't have the time at the moment, but if anyone could figure out an equation for this sequence, that'd be great.
$endgroup$
– Gryphon
1 hour ago












$begingroup$
You can reach 1023 on one hand? O_o
$endgroup$
– ASCII-only
24 mins ago




$begingroup$
You can reach 1023 on one hand? O_o
$endgroup$
– ASCII-only
24 mins ago












$begingroup$
BTW, pretty sure there is no short equation for this sequence, but you could (kinda) make a separate equation for each hand
$endgroup$
– ASCII-only
12 mins ago




$begingroup$
BTW, pretty sure there is no short equation for this sequence, but you could (kinda) make a separate equation for each hand
$endgroup$
– ASCII-only
12 mins ago










6 Answers
6






active

oldest

votes


















3












$begingroup$


JavaScript (SpiderMonkey), 27 bytes





x=>/4/.test(x.toString(32))


Try it online!



This is a trivial solution, you just want to convert to base 32 and check if there is a 4 in it.






share|improve this answer









$endgroup$





















    2












    $begingroup$

    Ruby, 36 19 bytes





    ->n{n.to_s(32)[?4]}


    Try it online!



    Saved 17 bytes with @tsh's method.






    share|improve this answer











    $endgroup$













    • $begingroup$
      This returns true for 2207, which has a binary representation of 100010011111
      $endgroup$
      – Embodiment of Ignorance
      36 mins ago










    • $begingroup$
      @EmbodimentofIgnorance That is the correct result, is it not? The second hand is 00100.
      $endgroup$
      – Doorknob
      30 mins ago










    • $begingroup$
      I don't speak Ruby. But why not ->n{n.to_s(32)=~/4/}?
      $endgroup$
      – tsh
      26 mins ago












    • $begingroup$
      @tsh because I'm not as clever as you :)
      $endgroup$
      – Doorknob
      23 mins ago










    • $begingroup$
      Forgive me if I'm not understanding the question, but isn't the first hand of 2207 10001, the second 00111, and the third 11? None of them have their middle finger only up
      $endgroup$
      – Embodiment of Ignorance
      18 mins ago



















    2












    $begingroup$


    Perl 6, 16 bytes





    {.base(32)~~/4/}


    Try it online!



    Checks if there is a 4 in the base 32 representation of the number. Returns either Nil as false or a Match containing a 4.



    You can prove this by the fact that $2^5 = 32$ so each digit is the state of each hand.






    share|improve this answer









    $endgroup$





















      1












      $begingroup$


      Japt, 5 bytes



      sH ø4


      Try it online!



      Explanation



            // Implicit input
      sH // To a base-H (=32) string
      ø // Contains
      4 // 4 (JavaScript interprets this as a string)





      share|improve this answer









      $endgroup$





















        1












        $begingroup$

        Regex (ECMAScript), 37 bytes



        ^((?=(x+)(2{31}x*))3)*(x{32})*x{4}$



        Try it online!



        ^
        (
        (?=(x+)(2{31}x*)) # 2 = floor(tail / 32); 3 = tool to make tail = 2
        3 # tail = 2
        )* # Loop the above as many times as necessary to make
        # the below match
        (x{32})*x{4}$ # Assert that tail % 32 == 4





        share|improve this answer











        $endgroup$





















          0












          $begingroup$

          APL+WIN, 10 bytes



          Prompts for input of integer



          4∊(6⍴32)⊤⎕


          Noting six hands are required to represent 10^9 converts to vector of 6 elements of the base 32 representation and checks if a 4 exists in any element.





          share









          $endgroup$













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            6 Answers
            6






            active

            oldest

            votes








            6 Answers
            6






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3












            $begingroup$


            JavaScript (SpiderMonkey), 27 bytes





            x=>/4/.test(x.toString(32))


            Try it online!



            This is a trivial solution, you just want to convert to base 32 and check if there is a 4 in it.






            share|improve this answer









            $endgroup$


















              3












              $begingroup$


              JavaScript (SpiderMonkey), 27 bytes





              x=>/4/.test(x.toString(32))


              Try it online!



              This is a trivial solution, you just want to convert to base 32 and check if there is a 4 in it.






              share|improve this answer









              $endgroup$
















                3












                3








                3





                $begingroup$


                JavaScript (SpiderMonkey), 27 bytes





                x=>/4/.test(x.toString(32))


                Try it online!



                This is a trivial solution, you just want to convert to base 32 and check if there is a 4 in it.






                share|improve this answer









                $endgroup$




                JavaScript (SpiderMonkey), 27 bytes





                x=>/4/.test(x.toString(32))


                Try it online!



                This is a trivial solution, you just want to convert to base 32 and check if there is a 4 in it.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 29 mins ago









                tshtsh

                9,15511650




                9,15511650























                    2












                    $begingroup$

                    Ruby, 36 19 bytes





                    ->n{n.to_s(32)[?4]}


                    Try it online!



                    Saved 17 bytes with @tsh's method.






                    share|improve this answer











                    $endgroup$













                    • $begingroup$
                      This returns true for 2207, which has a binary representation of 100010011111
                      $endgroup$
                      – Embodiment of Ignorance
                      36 mins ago










                    • $begingroup$
                      @EmbodimentofIgnorance That is the correct result, is it not? The second hand is 00100.
                      $endgroup$
                      – Doorknob
                      30 mins ago










                    • $begingroup$
                      I don't speak Ruby. But why not ->n{n.to_s(32)=~/4/}?
                      $endgroup$
                      – tsh
                      26 mins ago












                    • $begingroup$
                      @tsh because I'm not as clever as you :)
                      $endgroup$
                      – Doorknob
                      23 mins ago










                    • $begingroup$
                      Forgive me if I'm not understanding the question, but isn't the first hand of 2207 10001, the second 00111, and the third 11? None of them have their middle finger only up
                      $endgroup$
                      – Embodiment of Ignorance
                      18 mins ago
















                    2












                    $begingroup$

                    Ruby, 36 19 bytes





                    ->n{n.to_s(32)[?4]}


                    Try it online!



                    Saved 17 bytes with @tsh's method.






                    share|improve this answer











                    $endgroup$













                    • $begingroup$
                      This returns true for 2207, which has a binary representation of 100010011111
                      $endgroup$
                      – Embodiment of Ignorance
                      36 mins ago










                    • $begingroup$
                      @EmbodimentofIgnorance That is the correct result, is it not? The second hand is 00100.
                      $endgroup$
                      – Doorknob
                      30 mins ago










                    • $begingroup$
                      I don't speak Ruby. But why not ->n{n.to_s(32)=~/4/}?
                      $endgroup$
                      – tsh
                      26 mins ago












                    • $begingroup$
                      @tsh because I'm not as clever as you :)
                      $endgroup$
                      – Doorknob
                      23 mins ago










                    • $begingroup$
                      Forgive me if I'm not understanding the question, but isn't the first hand of 2207 10001, the second 00111, and the third 11? None of them have their middle finger only up
                      $endgroup$
                      – Embodiment of Ignorance
                      18 mins ago














                    2












                    2








                    2





                    $begingroup$

                    Ruby, 36 19 bytes





                    ->n{n.to_s(32)[?4]}


                    Try it online!



                    Saved 17 bytes with @tsh's method.






                    share|improve this answer











                    $endgroup$



                    Ruby, 36 19 bytes





                    ->n{n.to_s(32)[?4]}


                    Try it online!



                    Saved 17 bytes with @tsh's method.







                    share|improve this answer














                    share|improve this answer



                    share|improve this answer








                    edited 23 mins ago

























                    answered 1 hour ago









                    DoorknobDoorknob

                    54.9k17115352




                    54.9k17115352












                    • $begingroup$
                      This returns true for 2207, which has a binary representation of 100010011111
                      $endgroup$
                      – Embodiment of Ignorance
                      36 mins ago










                    • $begingroup$
                      @EmbodimentofIgnorance That is the correct result, is it not? The second hand is 00100.
                      $endgroup$
                      – Doorknob
                      30 mins ago










                    • $begingroup$
                      I don't speak Ruby. But why not ->n{n.to_s(32)=~/4/}?
                      $endgroup$
                      – tsh
                      26 mins ago












                    • $begingroup$
                      @tsh because I'm not as clever as you :)
                      $endgroup$
                      – Doorknob
                      23 mins ago










                    • $begingroup$
                      Forgive me if I'm not understanding the question, but isn't the first hand of 2207 10001, the second 00111, and the third 11? None of them have their middle finger only up
                      $endgroup$
                      – Embodiment of Ignorance
                      18 mins ago


















                    • $begingroup$
                      This returns true for 2207, which has a binary representation of 100010011111
                      $endgroup$
                      – Embodiment of Ignorance
                      36 mins ago










                    • $begingroup$
                      @EmbodimentofIgnorance That is the correct result, is it not? The second hand is 00100.
                      $endgroup$
                      – Doorknob
                      30 mins ago










                    • $begingroup$
                      I don't speak Ruby. But why not ->n{n.to_s(32)=~/4/}?
                      $endgroup$
                      – tsh
                      26 mins ago












                    • $begingroup$
                      @tsh because I'm not as clever as you :)
                      $endgroup$
                      – Doorknob
                      23 mins ago










                    • $begingroup$
                      Forgive me if I'm not understanding the question, but isn't the first hand of 2207 10001, the second 00111, and the third 11? None of them have their middle finger only up
                      $endgroup$
                      – Embodiment of Ignorance
                      18 mins ago
















                    $begingroup$
                    This returns true for 2207, which has a binary representation of 100010011111
                    $endgroup$
                    – Embodiment of Ignorance
                    36 mins ago




                    $begingroup$
                    This returns true for 2207, which has a binary representation of 100010011111
                    $endgroup$
                    – Embodiment of Ignorance
                    36 mins ago












                    $begingroup$
                    @EmbodimentofIgnorance That is the correct result, is it not? The second hand is 00100.
                    $endgroup$
                    – Doorknob
                    30 mins ago




                    $begingroup$
                    @EmbodimentofIgnorance That is the correct result, is it not? The second hand is 00100.
                    $endgroup$
                    – Doorknob
                    30 mins ago












                    $begingroup$
                    I don't speak Ruby. But why not ->n{n.to_s(32)=~/4/}?
                    $endgroup$
                    – tsh
                    26 mins ago






                    $begingroup$
                    I don't speak Ruby. But why not ->n{n.to_s(32)=~/4/}?
                    $endgroup$
                    – tsh
                    26 mins ago














                    $begingroup$
                    @tsh because I'm not as clever as you :)
                    $endgroup$
                    – Doorknob
                    23 mins ago




                    $begingroup$
                    @tsh because I'm not as clever as you :)
                    $endgroup$
                    – Doorknob
                    23 mins ago












                    $begingroup$
                    Forgive me if I'm not understanding the question, but isn't the first hand of 2207 10001, the second 00111, and the third 11? None of them have their middle finger only up
                    $endgroup$
                    – Embodiment of Ignorance
                    18 mins ago




                    $begingroup$
                    Forgive me if I'm not understanding the question, but isn't the first hand of 2207 10001, the second 00111, and the third 11? None of them have their middle finger only up
                    $endgroup$
                    – Embodiment of Ignorance
                    18 mins ago











                    2












                    $begingroup$


                    Perl 6, 16 bytes





                    {.base(32)~~/4/}


                    Try it online!



                    Checks if there is a 4 in the base 32 representation of the number. Returns either Nil as false or a Match containing a 4.



                    You can prove this by the fact that $2^5 = 32$ so each digit is the state of each hand.






                    share|improve this answer









                    $endgroup$


















                      2












                      $begingroup$


                      Perl 6, 16 bytes





                      {.base(32)~~/4/}


                      Try it online!



                      Checks if there is a 4 in the base 32 representation of the number. Returns either Nil as false or a Match containing a 4.



                      You can prove this by the fact that $2^5 = 32$ so each digit is the state of each hand.






                      share|improve this answer









                      $endgroup$
















                        2












                        2








                        2





                        $begingroup$


                        Perl 6, 16 bytes





                        {.base(32)~~/4/}


                        Try it online!



                        Checks if there is a 4 in the base 32 representation of the number. Returns either Nil as false or a Match containing a 4.



                        You can prove this by the fact that $2^5 = 32$ so each digit is the state of each hand.






                        share|improve this answer









                        $endgroup$




                        Perl 6, 16 bytes





                        {.base(32)~~/4/}


                        Try it online!



                        Checks if there is a 4 in the base 32 representation of the number. Returns either Nil as false or a Match containing a 4.



                        You can prove this by the fact that $2^5 = 32$ so each digit is the state of each hand.







                        share|improve this answer












                        share|improve this answer



                        share|improve this answer










                        answered 20 mins ago









                        Jo KingJo King

                        23.7k257123




                        23.7k257123























                            1












                            $begingroup$


                            Japt, 5 bytes



                            sH ø4


                            Try it online!



                            Explanation



                                  // Implicit input
                            sH // To a base-H (=32) string
                            ø // Contains
                            4 // 4 (JavaScript interprets this as a string)





                            share|improve this answer









                            $endgroup$


















                              1












                              $begingroup$


                              Japt, 5 bytes



                              sH ø4


                              Try it online!



                              Explanation



                                    // Implicit input
                              sH // To a base-H (=32) string
                              ø // Contains
                              4 // 4 (JavaScript interprets this as a string)





                              share|improve this answer









                              $endgroup$
















                                1












                                1








                                1





                                $begingroup$


                                Japt, 5 bytes



                                sH ø4


                                Try it online!



                                Explanation



                                      // Implicit input
                                sH // To a base-H (=32) string
                                ø // Contains
                                4 // 4 (JavaScript interprets this as a string)





                                share|improve this answer









                                $endgroup$




                                Japt, 5 bytes



                                sH ø4


                                Try it online!



                                Explanation



                                      // Implicit input
                                sH // To a base-H (=32) string
                                ø // Contains
                                4 // 4 (JavaScript interprets this as a string)






                                share|improve this answer












                                share|improve this answer



                                share|improve this answer










                                answered 25 mins ago









                                ASCII-onlyASCII-only

                                3,4701236




                                3,4701236























                                    1












                                    $begingroup$

                                    Regex (ECMAScript), 37 bytes



                                    ^((?=(x+)(2{31}x*))3)*(x{32})*x{4}$



                                    Try it online!



                                    ^
                                    (
                                    (?=(x+)(2{31}x*)) # 2 = floor(tail / 32); 3 = tool to make tail = 2
                                    3 # tail = 2
                                    )* # Loop the above as many times as necessary to make
                                    # the below match
                                    (x{32})*x{4}$ # Assert that tail % 32 == 4





                                    share|improve this answer











                                    $endgroup$


















                                      1












                                      $begingroup$

                                      Regex (ECMAScript), 37 bytes



                                      ^((?=(x+)(2{31}x*))3)*(x{32})*x{4}$



                                      Try it online!



                                      ^
                                      (
                                      (?=(x+)(2{31}x*)) # 2 = floor(tail / 32); 3 = tool to make tail = 2
                                      3 # tail = 2
                                      )* # Loop the above as many times as necessary to make
                                      # the below match
                                      (x{32})*x{4}$ # Assert that tail % 32 == 4





                                      share|improve this answer











                                      $endgroup$
















                                        1












                                        1








                                        1





                                        $begingroup$

                                        Regex (ECMAScript), 37 bytes



                                        ^((?=(x+)(2{31}x*))3)*(x{32})*x{4}$



                                        Try it online!



                                        ^
                                        (
                                        (?=(x+)(2{31}x*)) # 2 = floor(tail / 32); 3 = tool to make tail = 2
                                        3 # tail = 2
                                        )* # Loop the above as many times as necessary to make
                                        # the below match
                                        (x{32})*x{4}$ # Assert that tail % 32 == 4





                                        share|improve this answer











                                        $endgroup$



                                        Regex (ECMAScript), 37 bytes



                                        ^((?=(x+)(2{31}x*))3)*(x{32})*x{4}$



                                        Try it online!



                                        ^
                                        (
                                        (?=(x+)(2{31}x*)) # 2 = floor(tail / 32); 3 = tool to make tail = 2
                                        3 # tail = 2
                                        )* # Loop the above as many times as necessary to make
                                        # the below match
                                        (x{32})*x{4}$ # Assert that tail % 32 == 4






                                        share|improve this answer














                                        share|improve this answer



                                        share|improve this answer








                                        edited 23 mins ago

























                                        answered 30 mins ago









                                        DeadcodeDeadcode

                                        1,7241419




                                        1,7241419























                                            0












                                            $begingroup$

                                            APL+WIN, 10 bytes



                                            Prompts for input of integer



                                            4∊(6⍴32)⊤⎕


                                            Noting six hands are required to represent 10^9 converts to vector of 6 elements of the base 32 representation and checks if a 4 exists in any element.





                                            share









                                            $endgroup$


















                                              0












                                              $begingroup$

                                              APL+WIN, 10 bytes



                                              Prompts for input of integer



                                              4∊(6⍴32)⊤⎕


                                              Noting six hands are required to represent 10^9 converts to vector of 6 elements of the base 32 representation and checks if a 4 exists in any element.





                                              share









                                              $endgroup$
















                                                0












                                                0








                                                0





                                                $begingroup$

                                                APL+WIN, 10 bytes



                                                Prompts for input of integer



                                                4∊(6⍴32)⊤⎕


                                                Noting six hands are required to represent 10^9 converts to vector of 6 elements of the base 32 representation and checks if a 4 exists in any element.





                                                share









                                                $endgroup$



                                                APL+WIN, 10 bytes



                                                Prompts for input of integer



                                                4∊(6⍴32)⊤⎕


                                                Noting six hands are required to represent 10^9 converts to vector of 6 elements of the base 32 representation and checks if a 4 exists in any element.






                                                share











                                                share


                                                share










                                                answered 1 min ago









                                                GrahamGraham

                                                2,33678




                                                2,33678






























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