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.
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" > > 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]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
