sum can overflow....
Xor method can also be applied to Q1. no need of numbers to be sorted.
2011/6/9 • » νιρυℓ « • <vipulmehta.1...@gmail.com>
> For 1.
> sum the numbers in the file, subtract it from sum of first 4 billion
> numbers.
>
>
> On Thu, Jun 9, 2011 at 3:44 PM, Navneet Gupta <navneetn...@gmail.com>wrote:
>
>> The answer to second question is simple. XORing all the elements
>> should do it for you.
>>
>>
>> On Thu, Jun 9, 2011 at 3:15 PM, Dumanshu <duman...@gmail.com> wrote:
>> > Q1. I have a file in which there are supposed to be 4 billion
>> > numbers,
>> > starting from 1 to 4,000,000,000 but unfortunately one number is
>> > missing,
>> > i.e there are only 3,999,999,999 numbers, I need to find the missing
>> > number.
>> >
>> >
>> > Q2. I have an array consisting of 2n+1 elements. n elements in it are
>> > married, i.e they occur twice in the array, however there is one
>> > element
>> > which only appears once in the array. I need to find that number in a
>> > single pass using constant memory. {assume all are positive numbers}
>> > Eg :- 3 4 1 3 1 7 2 2 4
>> > Ans:- 7
>> >
>> > --
>> > 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.
>> >
>> >
>>
>>
>>
>> --
>> --Navneet
>>
>> --
>> 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.
>>
>>
>
>
> --
> Regards,
> Vipul
>
> --
> 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.
>
--
Sunny Aggrawal
B-Tech IV year,CSI
Indian Institute Of Technology,Roorkee
--
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.
