okey thnks @sukran.. :) On Sat, Aug 20, 2011 at 4:20 PM, sukran dhawan <sukrandha...@gmail.com>wrote:
> @sandeep > > number which is a power of 2 only one bit will be set. > number -1 : all the bits except the one which was set at num with be 1 > so num & num-1 will be 0 coz of bitwise and > > On Sat, Aug 20, 2011 at 4:18 PM, SANDEEP CHUGH <sandeep.aa...@gmail.com>wrote: > >> @sukran explain plz >> >> On Sat, Aug 20, 2011 at 4:16 PM, sukran dhawan <sukrandha...@gmail.com>wrote: >> >>> one more condition is required >>> >>> if(num != 0 && !( num & (num-1)) >>> >>> On Sat, Aug 20, 2011 at 4:04 PM, Sanjay Rajpal <srn...@gmail.com> wrote: >>> >>>> if(!(x & x-1)) printf("No. is power of 2"); >>>> >>>> >>>> Sanju >>>> :) >>>> >>>> >>>> >>>> On Sat, Aug 20, 2011 at 3:32 AM, Abhishek Yadav < >>>> algowithabhis...@gmail.com> wrote: >>>> >>>>> Give a one-line C expression to test whether a number is a power of 2. >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Algorithm Geeks" group. >>>>> To post to this group, send email to algogeeks@googlegroups.com. >>>>> To unsubscribe from this group, send email to >>>>> algogeeks+unsubscr...@googlegroups.com. >>>>> 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 algogeeks@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> algogeeks+unsubscr...@googlegroups.com. >>>> 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 algogeeks@googlegroups.com. >>> To unsubscribe from this group, send email to >>> algogeeks+unsubscr...@googlegroups.com. >>> 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 algogeeks@googlegroups.com. >> To unsubscribe from this group, send email to >> algogeeks+unsubscr...@googlegroups.com. >> 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 algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > 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 algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.