N possibilities

This is a discussion on N possibilities within the C++ Programming forums, part of the General Programming Boards category; I have a problem solving a proble... I wopuld great full to any one who can provide me with the ...

  1. #1
    Its not rocket science vasanth's Avatar
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    N possibilities

    I have a problem solving a proble...

    I wopuld great full to any one who can provide me with the algorithm and tips to solve ths..

    Conside that a user enters n numbers example(2,56 ,51 ,6,1,2,3,4,5,6) etc etc.. Well i want the program to find all the possible combination using the given numbers. If there are 2 numbers 1 and 2 and 3 then possibiliies such as 12,13,123,21,23,213,31,3,1,2,321,123 etc etc can be formed.. I want this to work for N numbers.. please help me...

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    I think factorials is what you need. n!
    Dunno if that is provided in any header, its fairly easy to write though...n! is the number of permutations of n items. I'll leave it up to you as an exercise to find. Man I sound like my math teacher.
    Last edited by MrWizard; 04-08-2002 at 12:17 AM.

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    Registered User xds4lx's Avatar
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    Ex: 5! = 5*4*3*2*1 = 120
    "only two things are infinite, the universe and human stupidity, and im not sure about the former." - albert einstein

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    geek SilentStrike's Avatar
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    This thread will probably help you out..

    http://www.cprogramming.com/cboard/s...threadid=12703
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
    Read my livejournal

  5. #5
    Its not rocket science vasanth's Avatar
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    I think i need more help..

  6. #6
    Evil Member
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    The code silentstrike proposed is almost exactly what you need. Take another look.

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    Its not rocket science vasanth's Avatar
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    Ok i will see..

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