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Interview questions gone wrong...

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  • F Fuzzychaos

    Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

    Jeremy Pemberton-Pigott
    A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
    New Dawn Engineering

    A Offline
    A Offline
    Alvaro Mendez
    wrote on last edited by
    #2

    Fuzzychaos wrote:

    Should have been (x && !(x & (x - 1))).

    x % 2 == 0 is probably what they were expecting. Good luck! Alvaro


    If [God] knows what we are going to do then we have no free will and are just characters in a play written by him. Without free will, morality for humans makes no sense. Without free will and morality, any sort of punishment or reward system loses any justification. Heaven and hell would be places where [God] could watch the souls he created, predestined just for eternal happiness or agony. - Mark Thomas

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    • F Fuzzychaos

      Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

      Jeremy Pemberton-Pigott
      A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
      New Dawn Engineering

      L Offline
      L Offline
      Leslie Sanford
      wrote on last edited by
      #3

      Fuzzychaos wrote:

      Should have been (x && !(x & (x - 1))).

      I wouldn't have gotten that either. :doh: I'll have to remember it.

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      • A Alvaro Mendez

        Fuzzychaos wrote:

        Should have been (x && !(x & (x - 1))).

        x % 2 == 0 is probably what they were expecting. Good luck! Alvaro


        If [God] knows what we are going to do then we have no free will and are just characters in a play written by him. Without free will, morality for humans makes no sense. Without free will and morality, any sort of punishment or reward system loses any justification. Heaven and hell would be places where [God] could watch the souls he created, predestined just for eternal happiness or agony. - Mark Thomas

        N Offline
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        Nish Nishant
        wrote on last edited by
        #4

        Alvaro Mendez wrote:

        x % 2 == 0 is probably what they were expecting.

        :confused: How will that help determine if a number is a power of 2? Powers of 2 are 1,2,4,8,16,32...

        Regards, Nish


        Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
        Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New)

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        • F Fuzzychaos

          Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

          Jeremy Pemberton-Pigott
          A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
          New Dawn Engineering

          R Offline
          R Offline
          Rama Krishna Vavilala
          wrote on last edited by
          #5

          If that is of some comfort to you: I screwed up a simple binary search in an interview once.


          Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -Brian Kernighan

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          • F Fuzzychaos

            Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

            Jeremy Pemberton-Pigott
            A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
            New Dawn Engineering

            M Offline
            M Offline
            Marc Clifton
            wrote on last edited by
            #6

            Fuzzychaos wrote:

            They asked for a test to check if a number is a power of 2

            My answer would have been, why are you testing to see if a number is a power of 2?

            Fuzzychaos wrote:

            Anyone have other mixed up interview questions?

            I think, anyone that asks me to interview, I would say, "um, thanks, but I'd rather interview YOU and YOUR programmers" which I've done, not explicitly, but most people don't know how to interview, and it is SO easy to get them to talk about themselves. And programmers of course love to complain, so the "what do you like about this job, and what do you hate about it" is an awesome interviewee question. ;) Marc

            Thyme In The Country

            People are just notoriously impossible. --DavidCrow
            There's NO excuse for not commenting your code. -- John Simmons / outlaw programmer
            People who say that they will refactor their code later to make it "good" don't understand refactoring, nor the art and craft of programming. -- Josh Smith

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            • A Alvaro Mendez

              Fuzzychaos wrote:

              Should have been (x && !(x & (x - 1))).

              x % 2 == 0 is probably what they were expecting. Good luck! Alvaro


              If [God] knows what we are going to do then we have no free will and are just characters in a play written by him. Without free will, morality for humans makes no sense. Without free will and morality, any sort of punishment or reward system loses any justification. Heaven and hell would be places where [God] could watch the souls he created, predestined just for eternal happiness or agony. - Mark Thomas

              F Offline
              F Offline
              Fuzzychaos
              wrote on last edited by
              #7

              Actually that was my answer, which was of course wrong :(

              Jeremy Pemberton-Pigott
              A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
              New Dawn Engineering

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              • M Marc Clifton

                Fuzzychaos wrote:

                They asked for a test to check if a number is a power of 2

                My answer would have been, why are you testing to see if a number is a power of 2?

                Fuzzychaos wrote:

                Anyone have other mixed up interview questions?

                I think, anyone that asks me to interview, I would say, "um, thanks, but I'd rather interview YOU and YOUR programmers" which I've done, not explicitly, but most people don't know how to interview, and it is SO easy to get them to talk about themselves. And programmers of course love to complain, so the "what do you like about this job, and what do you hate about it" is an awesome interviewee question. ;) Marc

                Thyme In The Country

                People are just notoriously impossible. --DavidCrow
                There's NO excuse for not commenting your code. -- John Simmons / outlaw programmer
                People who say that they will refactor their code later to make it "good" don't understand refactoring, nor the art and craft of programming. -- Josh Smith

                F Offline
                F Offline
                Fuzzychaos
                wrote on last edited by
                #8

                So true! :-D

                Jeremy Pemberton-Pigott
                A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                New Dawn Engineering

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                • F Fuzzychaos

                  Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

                  Jeremy Pemberton-Pigott
                  A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                  New Dawn Engineering

                  D Offline
                  D Offline
                  dighn
                  wrote on last edited by
                  #9

                  doesn't seem so easy, especially during an interview and if it had to be a one liner like that. unless for some reason you had had to do something like that in the past

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                  • F Fuzzychaos

                    Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

                    Jeremy Pemberton-Pigott
                    A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                    New Dawn Engineering

                    L Offline
                    L Offline
                    Leslie Sanford
                    wrote on last edited by
                    #10

                    By the way...

                    Fuzzychaos wrote:

                    Had an interview over the phone today.

                    Fuzzychaos wrote:

                    Should have been (x && !(x & (x - 1))).

                    How do you say that over the phone?

                    P P 2 Replies Last reply
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                    • F Fuzzychaos

                      Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

                      Jeremy Pemberton-Pigott
                      A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                      New Dawn Engineering

                      S Offline
                      S Offline
                      Shog9 0
                      wrote on last edited by
                      #11

                      Fuzzychaos wrote:

                      Anyone have other mixed up interview questions?

                      "Have you ever had problems with a co-worker?" Yeah, just don't answer that one. Definitely don't launch into long stories. :-o

                      ---- Scripts i’ve known... CPhog 1.8.2 - make CP better. Forum Bookmark 0.2.5 - bookmark forum posts on Pensieve Print forum 0.1.2 - printer-friendly forums Expand all 1.0 - Expand all messages In-place Delete 1.0 - AJAX-style post delete Syntax 0.1 - Syntax highlighting for code blocks in the forums

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                      • M Marc Clifton

                        Fuzzychaos wrote:

                        They asked for a test to check if a number is a power of 2

                        My answer would have been, why are you testing to see if a number is a power of 2?

                        Fuzzychaos wrote:

                        Anyone have other mixed up interview questions?

                        I think, anyone that asks me to interview, I would say, "um, thanks, but I'd rather interview YOU and YOUR programmers" which I've done, not explicitly, but most people don't know how to interview, and it is SO easy to get them to talk about themselves. And programmers of course love to complain, so the "what do you like about this job, and what do you hate about it" is an awesome interviewee question. ;) Marc

                        Thyme In The Country

                        People are just notoriously impossible. --DavidCrow
                        There's NO excuse for not commenting your code. -- John Simmons / outlaw programmer
                        People who say that they will refactor their code later to make it "good" don't understand refactoring, nor the art and craft of programming. -- Josh Smith

                        B Offline
                        B Offline
                        Bassam Abdul Baki
                        wrote on last edited by
                        #12

                        Marc Clifton wrote:

                        My answer would have been, why are you testing to see if a number is a power of 2?

                        Easy, for mathematical factorization like Mersenne primes. You change your algorithm if it is a power of two +/-1.


                        "I know which side I want to win regardless of how many wrongs they have to commit to achieve it." - Stan Shannon

                        Web - Blog - RSS - Math - LinkedIn

                        M 1 Reply Last reply
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                        • F Fuzzychaos

                          Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

                          Jeremy Pemberton-Pigott
                          A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                          New Dawn Engineering

                          C Offline
                          C Offline
                          charlieg
                          wrote on last edited by
                          #13

                          I guess it sort of depends on the type of programming you will be doing, but seriously, folks, when was the last time you had to do that in a program? I've been writing code for 25 years. I'll be polite: this is a bs question. If someone asked me that question over the phone, I'd have a hard time not laughing. I think I would respond with, "could you give me an example of actually using such a silly question?" Am I the only one here thinking this?

                          Charlie Gilley Will program for food... Whoever said children were cheaper by the dozen... lied. My son's PDA is an M249 SAW. My other son commutes in an M1A2 Abrams

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                          • C charlieg

                            I guess it sort of depends on the type of programming you will be doing, but seriously, folks, when was the last time you had to do that in a program? I've been writing code for 25 years. I'll be polite: this is a bs question. If someone asked me that question over the phone, I'd have a hard time not laughing. I think I would respond with, "could you give me an example of actually using such a silly question?" Am I the only one here thinking this?

                            Charlie Gilley Will program for food... Whoever said children were cheaper by the dozen... lied. My son's PDA is an M249 SAW. My other son commutes in an M1A2 Abrams

                            F Offline
                            F Offline
                            Fuzzychaos
                            wrote on last edited by
                            #14

                            It was for embedded systems development on a mobile device job interview.

                            Jeremy Pemberton-Pigott
                            A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                            New Dawn Engineering

                            C M 2 Replies Last reply
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                            • F Fuzzychaos

                              It was for embedded systems development on a mobile device job interview.

                              Jeremy Pemberton-Pigott
                              A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                              New Dawn Engineering

                              C Offline
                              C Offline
                              charlieg
                              wrote on last edited by
                              #15

                              :omg: I rest my case. I can see perhaps sampling basic binary skills, but really....

                              Charlie Gilley Will program for food... Whoever said children were cheaper by the dozen... lied. My son's PDA is an M249 SAW. My other son commutes in an M1A2 Abrams

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                              • N Nish Nishant

                                Alvaro Mendez wrote:

                                x % 2 == 0 is probably what they were expecting.

                                :confused: How will that help determine if a number is a power of 2? Powers of 2 are 1,2,4,8,16,32...

                                Regards, Nish


                                Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
                                Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New)

                                A Offline
                                A Offline
                                Alvaro Mendez
                                wrote on last edited by
                                #16

                                Nishant Sivakumar wrote:

                                How will that help determine if a number is a power of 2? Powers of 2 are 1,2,4,8,16,32...

                                Oops, perhaps he meant multiple of 2. :-O At least, that's what I understood. :~ Alvaro


                                If [God] knows what we are going to do then we have no free will and are just characters in a play written by him. Without free will, morality for humans makes no sense. Without free will and morality, any sort of punishment or reward system loses any justification. Heaven and hell would be places where [God] could watch the souls he created, predestined just for eternal happiness or agony. - Mark Thomas

                                A 1 Reply Last reply
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                                • F Fuzzychaos

                                  Had an interview over the phone today. Totally bunged the question. They asked for a test to check if a number is a power of 2 and I answered it as a test to see if it was divisible by 2! Should have been (x && !(x & (x - 1))). What a dolt I be! I was so nervous I messed up other simple ones too. Needless to say I didn't get the job failing the technical questions. Anyone have other mixed up interview questions?

                                  Jeremy Pemberton-Pigott
                                  A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                                  New Dawn Engineering

                                  L Offline
                                  L Offline
                                  leckey 0
                                  wrote on last edited by
                                  #17

                                  Man, all my recent interviews have been what are your strengths/weakneses? I actually had one guy who admitted he hadn't interviewed anyone in about 5 year. So I got out of tought questions. (Man I wish those guys would call me back with an offer!) :badger:

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                                  • L leckey 0

                                    Man, all my recent interviews have been what are your strengths/weakneses? I actually had one guy who admitted he hadn't interviewed anyone in about 5 year. So I got out of tought questions. (Man I wish those guys would call me back with an offer!) :badger:

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                                    B Offline
                                    bryce
                                    wrote on last edited by
                                    #18

                                    i like that wanky one about biggest weakness - i give them the "oh you mean hwo i always work too hard" with the eyerolling and p*ss takign then i tell them that my biggest weakness is that i tend to speak my mind. "why is that a weakness?" "because sometimes i don't bother preparsing it, so if you don't want to hear what i have to say, dont hire me" works well in nz, australia and the UK though Dunno how that would go down in america land- but i'm not in Amexica ;) - suspect i might get away with it coz i'm not a local Bryce

                                    --- To paraphrase Fred Dagg - the views expressed in this post are bloody good ones. --
                                    Publitor, making Pubmed easy. http://www.sohocode.com/publitor

                                    Our kids books :The Snot Goblin, and Book 2 - the Snotgoblin and Fluff

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                                    • F Fuzzychaos

                                      It was for embedded systems development on a mobile device job interview.

                                      Jeremy Pemberton-Pigott
                                      A programmer with a dream can accomplish anything. So, start by implementing your castle in the clouds and then working on its interface to a foundation :-D Quote by: Jeremy Pemberton-Pigott
                                      New Dawn Engineering

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                                      M Offline
                                      Marco Turrini
                                      wrote on last edited by
                                      #19

                                      Fuzzychaos wrote:

                                      It was for embedded systems development on a mobile device job interview.

                                      Whatever it was meant for, unless you are un-employed, you'ld be happy not to work for them: I can't see how can be so important the ability to determine if a number is the power of two; I can find tons of sample in dozens of languages just goggling, if I ever needed it. In my opinion, the most important thing in a developer is not how to solve such a small problem, but how to properly design an application, so that it's stable, easy to correct and expand and possibly performant (but this may vary, depending on the target). Looks like yor interviewer is (or was) a coder, not a programmer. Good luck for next time!

                                      Marco Turrini

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                                      • L Leslie Sanford

                                        By the way...

                                        Fuzzychaos wrote:

                                        Had an interview over the phone today.

                                        Fuzzychaos wrote:

                                        Should have been (x && !(x & (x - 1))).

                                        How do you say that over the phone?

                                        P Offline
                                        P Offline
                                        Polymorpher
                                        wrote on last edited by
                                        #20

                                        Right bracket, x, logical and, not, right bracket, x, binary and, right bracet, x - 1, left bracket, left bracket, left bracket ;)

                                        Pablo Sometimes I think there's no reason to get out of bed . . . then I feel wet, and I realize there is.

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                                        • C charlieg

                                          I guess it sort of depends on the type of programming you will be doing, but seriously, folks, when was the last time you had to do that in a program? I've been writing code for 25 years. I'll be polite: this is a bs question. If someone asked me that question over the phone, I'd have a hard time not laughing. I think I would respond with, "could you give me an example of actually using such a silly question?" Am I the only one here thinking this?

                                          Charlie Gilley Will program for food... Whoever said children were cheaper by the dozen... lied. My son's PDA is an M249 SAW. My other son commutes in an M1A2 Abrams

                                          P Offline
                                          P Offline
                                          Polymorpher
                                          wrote on last edited by
                                          #21

                                          I would only see it being valid if it was for something along the lines of game programing or some sort of math intinsive software.

                                          Pablo Sometimes I think there's no reason to get out of bed . . . then I feel wet, and I realize there is.

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