1<<n = 2 power n, total number of possible strings

On Wed, Sep 14, 2011 at 7:00 PM, UTKARSH SRIVASTAV
<usrivastav...@gmail.com>wrote:

> wahat is the logic why 1<<n?
>
>
> On Wed, Sep 14, 2011 at 6:44 PM, teja bala <pawanjalsa.t...@gmail.com>wrote:
>
>> @DAVE
>>
>> dis was the o/p for ur prog.
>>
>> aBC
>> abC
>> abC
>> abc
>> abc
>> abc
>> abc
>> abc
>>
>> #include<iostream.h>
>> main()
>> {
>> int i, n = 3;
>> char *s="ABC";
>> for( i = 0 ; i < (1<<n) ; ++i )
>> {
>>  s[i^(i>>1)] ^= 'a' ^ 'A';
>>  cout << s << endl;
>>  }
>> }
>>
>>
>>
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>
>
>
> --
> *UTKARSH SRIVASTAV
> CSE-3
> B-Tech 3rd Year
> @MNNIT ALLAHABAD*
>
>
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