c++ problems

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  • osp

    c++ problems

    hi every one viewing this post
    I guess i am having a grand
    start learning c++...where do i get good prolems that are not as tough
    as the acm problems ? please HELP ...

  • mlimber

    #2
    Re: c++ problems

    On Feb 22, 5:38 am, "osp" <osp...@gmail.c omwrote:
    hi every one viewing this post
    I guess i am having a grand
    start learning c++...where do i get good prolems that are not as tough
    as the acm problems ? please HELP ...
    How about the exercises in _Accelerated C++_ by Koenig and Moo?

    Cheers! --M

    Comment

    • rossum

      #3
      Re: c++ problems

      On 22 Feb 2007 02:38:17 -0800, "osp" <ospram@gmail.c omwrote:
      >hi every one viewing this post
      I guess i am having a grand
      >start learning c++...where do i get good prolems that are not as tough
      >as the acm problems ? please HELP ...
      Look at the percentages on the acm problems, the higher the
      percentages the easier the problem.

      rossum

      Comment

      • Noah Roberts

        #4
        Re: c++ problems

        rossum wrote:
        On 22 Feb 2007 02:38:17 -0800, "osp" <ospram@gmail.c omwrote:
        >
        >hi every one viewing this post
        > I guess i am having a grand
        >start learning c++...where do i get good prolems that are not as tough
        >as the acm problems ? please HELP ...
        Look at the percentages on the acm problems, the higher the
        percentages the easier the problem.
        >
        rossum
        >
        acm problems?

        Comment

        • Stuart Redmann

          #5
          Re: c++ problems

          Noah Roberts wrote:
          rossum wrote:
          >
          >Look at the percentages on the acm problems, the higher the
          >percentages the easier the problem.
          >>
          >rossum
          >>
          >
          acm problems?
          See http://icpc.baylor.edu/icpc/

          Regards,
          Stuart

          Comment

          • peter koch

            #6
            Re: c++ problems

            On Feb 22, 3:02 pm, rossum <rossu...@coldm ail.comwrote:
            On 22 Feb 2007 02:38:17 -0800, "osp" <osp...@gmail.c omwrote:
            >
            hi every one viewing this post
            I guess i am having a grand
            start learning c++...where do i get good prolems that are not as tough
            as the acm problems ? please HELP ...
            >
            Look at the percentages on the acm problems, the higher the
            percentages the easier the problem.
            >
            rossum
            I like the idea behind the acm challenge: it is a fun way to learn how
            to program. But the solutions? Horrible - they use C-code such as
            printf instead of streams for example. That is NOT the way to write C+
            + code and it is not the way to teach it.

            /Peter

            Comment

            • Dave Rahardja

              #7
              Re: c++ problems

              On 23 Feb 2007 01:23:29 -0800, "peter koch" <peter.koch.lar sen@gmail.com>
              wrote:
              >On Feb 22, 3:02 pm, rossum <rossu...@coldm ail.comwrote:
              >On 22 Feb 2007 02:38:17 -0800, "osp" <osp...@gmail.c omwrote:
              >>
              >hi every one viewing this post
              I guess i am having a grand
              >start learning c++...where do i get good prolems that are not as tough
              >as the acm problems ? please HELP ...
              >>
              >Look at the percentages on the acm problems, the higher the
              >percentages the easier the problem.
              >>
              >rossum
              >I like the idea behind the acm challenge: it is a fun way to learn how
              >to program. But the solutions? Horrible - they use C-code such as
              >printf instead of streams for example. That is NOT the way to write C+
              >+ code and it is not the way to teach it.
              I've participated in the ACM challenge in college (a long time ago!). The
              program tend to reward correct, but unmaintainable, coding. One-shot,
              throwaway design is the way to win.

              Of course, as long as one understands that and doesn't carry it into their
              professional career, then a fun time can be had by all!

              -dr

              Comment

              • peter koch

                #8
                Re: c++ problems

                On 23 Feb., 16:05, Dave Rahardja
                <drahardja_atsi gn_pobox_dot_.. .@pobox.comwrot e:
                On 23 Feb 2007 01:23:29 -0800, "peter koch" <peter.koch.lar ...@gmail.com>
                wrote:
                >
                >
                >
                >
                >
                On Feb 22, 3:02 pm, rossum <rossu...@coldm ail.comwrote:
                On 22 Feb 2007 02:38:17 -0800, "osp" <osp...@gmail.c omwrote:
                >
                hi every one viewing this post
                I guess i am having a grand
                start learning c++...where do i get good prolems that are not as tough
                as the acm problems ? please HELP ...
                >
                Look at the percentages on the acm problems, the higher the
                percentages the easier the problem.
                >
                rossum
                I like the idea behind the acm challenge: it is a fun way to learn how
                to program. But the solutions? Horrible - they use C-code such as
                printf instead of streams for example. That is NOT the way to write C+
                + code and it is not the way to teach it.
                >
                I've participated in the ACM challenge in college (a long time ago!). The
                program tend to reward correct, but unmaintainable, coding. One-shot,
                throwaway design is the way to win.
                But even if that is the case, I see no reason why your "write-once"
                code could not be C++. As an example, there is no reason to use the
                printf family when you have streams (and any good C++ course should
                teach streams, not printf - at least not in the beginning).

                /Peter
                >
                Of course, as long as one understands that and doesn't carry it into their
                professional career, then a fun time can be had by all!

                Comment

                • Grizlyk

                  #9
                  Re: c++ problems

                  peter koch wrote:
                  >
                  I like the idea behind the acm challenge: it is a fun way to learn how
                  to program. But the solutions? Horrible - they use C-code such as
                  printf instead of streams for example. That is NOT the way to write
                  C++ code and it is not the way to teach it.
                  I want to say, that you can throw away whole C++ stdlib ( and can start with
                  ugly std::auto_ptr ), but your code will be C++ correct. C++ is not library.

                  And the overloaded "operator <<" you really need only for templated
                  functions, when you do not know what kind of data will be outputed at each
                  instance or in which stream. Else the "printf" is often better.

                  Some programmers rare use iostreams in practical case (and printf also)
                  beacause in theirs systems console-like stream output is useless thing in
                  the world.

                  --
                  Maksim A. Polyanin


                  "In thi world of fairy tales rolls are liked olso"
                  /Gnume/


                  Comment

                  • Victor Bazarov

                    #10
                    Re: c++ problems

                    Grizlyk wrote:
                    peter koch wrote:
                    >>
                    >I like the idea behind the acm challenge: it is a fun way to learn
                    >how to program. But the solutions? Horrible - they use C-code such as
                    >printf instead of streams for example. That is NOT the way to write
                    >C++ code and it is not the way to teach it.
                    >
                    I want to say, that you can throw away whole C++ stdlib ( and can
                    start with ugly std::auto_ptr ), but your code will be C++ correct.
                    C++ is not library.
                    Learning how to use language without learning good practices of using
                    the library is like learning to dance without a partner. One should
                    expect big difficulties in the real world, in a real dance hall.
                    And the overloaded "operator <<" you really need only for templated
                    functions, when you do not know what kind of data will be outputed at
                    each instance or in which stream. Else the "printf" is often better.
                    Please show me how you can output a class object using printf. I dare
                    you.
                    Some programmers rare use iostreams in practical case (and printf
                    also) beacause in theirs systems console-like stream output is
                    useless thing in the world.
                    I am guessing you've not one of those...

                    V
                    --
                    Please remove capital 'A's when replying by e-mail
                    I do not respond to top-posted replies, please don't ask


                    Comment

                    • Grizlyk

                      #11
                      Re: c++ problems

                      Victor Bazarov wrote:
                      >>
                      >I want to say, that you can throw away whole C++ stdlib ( and can
                      >start with ugly std::auto_ptr ), but your code will be C++ correct.
                      >C++ is not library.
                      >
                      Learning how to use language without learning good practices of using
                      the library is like learning to dance without a partner. One should
                      expect big difficulties in the real world, in a real dance hall.
                      You setup "good practice" without any provements by your habits only. Today
                      C++ stdlib is so large, that no need to use it completely. Not each ordinary
                      man can study any complex library (as C++ stdlib) completely and the
                      knowledge is no need to him in his practical examples.

                      I hope you do not mean to learn implementation of the std library as "good
                      practice"? One can say, that description of interface of any good library
                      must be enough to use it. Any good library must be understandable "on fly -
                      read, used and forget". Using any good library must not be obstacle and must
                      not require special enforces.

                      I think C++ has a weak point - in C++ is hard to use already defined classes
                      (and stdlib also) in "on fly" manner, because C++ has no extra information
                      placed in class declaration for design purpose, to be bridge for design
                      tools. I think using any library is kind of design work.

                      I want to write about the weak point (at nearest weeks/months) in my page
                      http://grizlyk1.narod.ru/cpp_new .
                      >And the overloaded "operator <<" you really need only for templated
                      >functions, when you do not know what kind of data will be outputed at
                      >each instance or in which stream. Else the "printf" is often better.
                      >
                      Please show me how you can output a class object using printf. I dare
                      you.
                      You no need to dare. Originally, we are speaking about data that can be
                      printed by "printf" (probably we are speaking avout POD data), so you can
                      "output a class object" exactly as if you write the own "operator <<" for
                      the class, but instead of writing trivial members into ostream, printf them.

                      I agree, that printf format string is not easy to learn, but any good
                      on-line help can help you to write correct format string. In any case, make
                      formatted output with the help of ostream is not easy also.
                      >Some programmers rare use iostreams in practical case (and printf
                      >also) beacause in theirs systems console-like stream output is
                      >useless thing in the world.
                      >
                      I am guessing you've not one of those...
                      It is hard to me to understand your suspicions, but i rare use streams in
                      practical cases - i have no devices to be able to display the streams or to
                      get input from them.

                      --
                      Maksim A. Polyanin


                      "In thi world of fairy tales rolls are liked olso"
                      /Gnume/


                      Comment

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