Multiply 20 digits len ; It is emergency case

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Multiply 20 digits len ; It is emergency case

Dear C++ Programmers

We know the c++ "long long" type or "__Int64" type support 19 digits; if I want to multiply or subtract or sum two 20 length digits , what I must do How it is poosible




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Multiply 20 digits len ; It is emergency case

  • nielsb

    Hi

    It is a good suggestion , whould you make a sample , how can I make type , or how it work with array I use this ways before but it does not make it if it is possible help me more



  • Léo Gagné

    Have you tried MSN search Something like "Big Number Library C++"

  • Vivek.

    Yes I try it but it does not help me I myself try an char array and get some results , but it not make it completly.

  • Tomi B.

    Hi,
    you'll have to make a type for yourself that allows that kind of operations (use an array for example) or use any lib that supports that.


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