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Friday's Coding Challenge

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  • B Bassam Abdul Baki

    Would you prefer an answer in Excel? :D

    Web - BM - RSS - Math - LinkedIn

    D Offline
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    Dalek Dave
    wrote on last edited by
    #23

    I took you at your word...See Below :)

    --------------------------------- I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave CCC Link[^] English League Tables - Live

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    • C Chris Maunder

      My eyes! They burn!

      cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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      D Offline
      Dalek Dave
      wrote on last edited by
      #24

      Functional but ugly. I have dated some like that!

      --------------------------------- I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave CCC Link[^] English League Tables - Live

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      • C Chris Maunder

        Yes, like the weekly surveys, they are merely pedant fodder. :)

        cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

        D Offline
        D Offline
        Dalek Dave
        wrote on last edited by
        #25

        If you don't feed the pedants, they will revolt!

        --------------------------------- I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave CCC Link[^] English League Tables - Live

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        • C Chris Maunder

          What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

          cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

          W Offline
          W Offline
          wizardzz
          wrote on last edited by
          #26

          Elephanting Sunshine! You expect us to do your homework?

          "I have a theory that the truth is never told during the nine-to-five hours. " — Hunter S. Thompson

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          • C Chris Maunder

            You may want to read the specs again.

            cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

            realJSOPR Offline
            realJSOPR Offline
            realJSOP
            wrote on last edited by
            #27

            I assumed n was 1. :)

            ".45 ACP - because shooting twice is just silly" - JSOP, 2010
            -----
            You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
            -----
            "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

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            • C Chris Maunder

              What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

              cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

              R Offline
              R Offline
              Roger Wright
              wrote on last edited by
              #28

              Is this somehow related to the curious error page I received this morning from Web04? The one featuring ravenous hamsters obviously recovering from a three day methamphetamine/ethanol binge?

              Will Rogers never met me.

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              • C Chris Maunder

                What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

                cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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                B Offline
                Bassam Abdul Baki
                wrote on last edited by
                #29

                In English (again): :D Assume m = A*n + B. If m >> n, then it might be easier to first sort each of the A n-segments and B segment separately. Compare the first element of the A-1 lists and B to the last element of the first A list (or to the last element of the smallest starting A-list) and eliminate all the A segments that are greater than that. Then repeat the process again using n elements selected vertically.

                Web - BM - RSS - Math - LinkedIn

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                • D Dalek Dave

                  As an accountant I would suggest...

                  Range("A:A").Select
                  ActiveWorkbook.Worksheets("Sheet1").Sort.SortFields.Clear
                  ActiveWorkbook.Worksheets("Sheet1").Sort.SortFields.Add Key:=Range("A1"), SortOn:=xlSortOnValues, Order:=xlAscending, DataOption:=xlSortNormal
                  With ActiveWorkbook.Worksheets("Sheet1").Sort
                      .SetRange Range("A:A")
                      .Header = xlNo
                      .MatchCase = False
                      .Orientation = xlTopToBottom
                      .SortMethod = xlPinYin
                      .Apply
                  End With
                  Range("C1").Select
                  ActiveCell.FormulaR1C1 = "=RC\[-2\]"
                  Range("C2").Select
                  ActiveCell.FormulaR1C1 = "=COUNTIF(R\[-1\]C\[-2\]:R\[17\]C\[-2\],R\[-1\]C)"
                  Range("C3").Select
                  

                  That that is accountants all over!

                  --------------------------------- I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave CCC Link[^] English League Tables - Live

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                  NormDroid
                  wrote on last edited by
                  #30

                  Help my eyes, my poor eyes are bleeding :)

                  Software Kinetics Wear a hard hat it's under construction
                  Metro RSS

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                  • D Dalek Dave

                    If you don't feed the pedants, they will revolt!

                    --------------------------------- I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave CCC Link[^] English League Tables - Live

                    P Offline
                    P Offline
                    PIEBALDconsult
                    wrote on last edited by
                    #31

                    "The pedants are revolting!" (a la The Wizard of Id)

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                    • R Roger Wright

                      Is this somehow related to the curious error page I received this morning from Web04? The one featuring ravenous hamsters obviously recovering from a three day methamphetamine/ethanol binge?

                      Will Rogers never met me.

                      C Offline
                      C Offline
                      Chris Maunder
                      wrote on last edited by
                      #32

                      The hamsters have asked for an end to the rumours and baseless allegations of alleged behaviour during certain incidents. The hamsters involved are currently taking some time off to spend more time with their families.

                      cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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                      • R Roger Wright

                        Is this somehow related to the curious error page I received this morning from Web04? The one featuring ravenous hamsters obviously recovering from a three day methamphetamine/ethanol binge?

                        Will Rogers never met me.

                        L Offline
                        L Offline
                        leppie
                        wrote on last edited by
                        #33

                        Roger Wright wrote:

                        The one featuring ravenous hamsters obviously recovering from a three day methamphetamine/ethanol binge?

                        You read my mind ;p

                        IronScheme
                        ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

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                        • C Chris Maunder

                          What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

                          cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

                          M Offline
                          M Offline
                          Mel Padden
                          wrote on last edited by
                          #34

                          Try this:

                          #generation of the list
                          import random
                          sample = []; n=10; m = 100;rnd = random.Random();
                          for it in range (1, m): sample.append(rnd.randint(1,n*m))

                          #then
                          sample.sort()
                          print sample[:n]
                          #boom

                          @Chris - When are you planning to start supporting Python in the forum syntax highlighter? :-O [Edit] Not that I'm claiming that my little snippet is beautiful; far from it. I'm still way off being a full-blown Pythonista. But it sure would be nice to have it supported.

                          Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex. Complex is better than complicated. Flat is better than nested. Sparse is better than dense. In the face of ambiguity, refuse the temptation to guess.

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                          • C Chris Maunder

                            That's 1 line too many ;)

                            cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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                            S Offline
                            Simon_Whale
                            wrote on last edited by
                            #35

                            My only other alternative is using this List.Sort overloaded method[^] but it would involve a more complex object and writing your own Compare method Scrap that idea Leppie has a great answer in my opinion[^]

                            Lobster Thermidor aux crevettes with a Mornay sauce, served in a Provençale manner with shallots and aubergines, garnished with truffle pate, brandy and a fried egg on top and Spam - Monty Python Spam Sketch

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                            • C Chris Maunder

                              What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

                              cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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                              L Offline
                              leppie
                              wrote on last edited by
                              #36

                              sample.OrderBy(x => x).Take(n)

                              IronScheme
                              ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

                              1 Reply Last reply
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                              • C Chris Maunder

                                You may want to read the specs again.

                                cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

                                realJSOPR Offline
                                realJSOPR Offline
                                realJSOP
                                wrote on last edited by
                                #37

                                //assumptions
                                // n = 2
                                int[] sample = new int[]{8,1,9,3,2};
                                int[] sample2 = new int[2];

                                //code
                                Array.Sort(sample);
                                sample2 = sample.Take(sample2.Length).ToArray();

                                ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                -----
                                You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                -----
                                "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

                                1 Reply Last reply
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                                • C Chris Maunder

                                  What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

                                  cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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                                  BobJanova
                                  wrote on last edited by
                                  #38

                                  Seems 'sort and take the first N' is the consensus on the algorithm, I think everyone's code does the same thing.

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                                  • C Chris Maunder

                                    The hamsters have asked for an end to the rumours and baseless allegations of alleged behaviour during certain incidents. The hamsters involved are currently taking some time off to spend more time with their families.

                                    cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

                                    S Offline
                                    S Offline
                                    S Houghtelin
                                    wrote on last edited by
                                    #39

                                    Chris Maunder wrote:

                                    The hamsters involved are currently taking some time off to spend more time with their families.

                                    How did they escape? You forgot to lock the door again... :D

                                    It was broke, so I fixed it.

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                                    • C Chris Maunder

                                      What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

                                      cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

                                      J Offline
                                      J Offline
                                      Jason Hooper
                                      wrote on last edited by
                                      #40

                                      Does the language have to already exist?

                                      Jason

                                      B 1 Reply Last reply
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                                      • C Chris Maunder

                                        What's the smallest code you can come up with to find the n smallest numbers in a random sample of m numbers where n < m. Any language, speed is not an issue.

                                        cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

                                        OriginalGriffO Offline
                                        OriginalGriffO Offline
                                        OriginalGriff
                                        wrote on last edited by
                                        #41

                                        "GIMMEE CODEZ!!!" in Q&A should do it...

                                        Ideological Purity is no substitute for being able to stick your thumb down a pipe to stop the water

                                        "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
                                        "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

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                                        • J Jason Hooper

                                          Does the language have to already exist?

                                          Jason

                                          B Offline
                                          B Offline
                                          BobJanova
                                          wrote on last edited by
                                          #42

                                          Well, if not, it is obviously possible to invent a language where one symbol does this operation :P. Since "sort and take" seems to be how to do it, it would be easy to conceive of a language where putting two symbols for "take" and "sort" next to each other would create a composite function that did it, making two characters the sensible theoretical minimum.

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