On Mon, Sep 20, 2010 at 1:15 PM, Baljeet Kumar <[email protected]>wrote:
> If a and b are the numbers then > dig = log10(a) + log10(b); > if dig has some fractional part then number of digits is dig + 1 else dig. > > found this correct onw > > On Mon, Sep 20, 2010 at 11:19 AM, sumant hegde <[email protected]>wrote: > >> >> Adding to the partial solution, if x, y are first digits, and x*y + x + y >> < 10, the result will be a+b -1 digits. "If not, u will need a complex >> logic to solve" > > if we take 30 * 33 as an example then it is (3*3 + 3+3 )> 10 which says ans will be 4 digit but ans is 990 which is 3 digit. >> On Mon, Sep 20, 2010 at 10:50 AM, rahul patil < >> [email protected]> wrote: >> >>> A partial solution is , if you multiply first digits of two nos and >>> result is greater than 10 then surely result will be a+b digits >>> If not, according to me, u will need a complex logic to solve. >>> >>> >>> On Mon, Sep 20, 2010 at 10:41 AM, Srinivas < >>> [email protected]> wrote: >>> >>>> how to find the no. of digits in the product of two numbers without >>>> multiplying?? >>>> if a is the number of digits in A and >>>> if b is the number of digits in B >>>> the number of digits in A*B is either a+b or a+b-1 but how to find the >>>> exact one? >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Algorithm Geeks" group. >>>> To post to this group, send email to [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]<algogeeks%[email protected]> >>>> . >>>> For more options, visit this group at >>>> http://groups.google.com/group/algogeeks?hl=en. >>>> >>>> >>> >>> >>> -- >>> Regards, >>> Rahul Patil >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<algogeeks%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<algogeeks%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<algogeeks%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Regards, Rahul Patil -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
