where n is ??
On Fri, Jun 17, 2011 at 3:23 PM, Arpit Sood <soodfi...@gmail.com> wrote:
> i have got AC with O(n)
>
> On Fri, Jun 17, 2011 at 2:59 PM, sunny agrawal <sunny816.i...@gmail.com>wrote:
>
>> you need to try something better as limits of A and B are very large :)
>> you can not run a loop from A to B
>>
>> i have not tried it but the logic is there will be many nos which will
>> give the same value and we dont need to calculate for them all explicitply
>> :)
>>
>>
>> On Fri, Jun 17, 2011 at 2:52 PM, KK <kunalkapadi...@gmail.com> wrote:
>>
>>> To remove all digits left of the rightmost digit one in the binary
>>> representation of some integer what we need to do is this:
>>> ans = no & -no
>>> and this is what is exactly asked in this problem of SPOJ:
>>> www.spoj.pl/problems/MZVRK/
>>>
>>>
>>> #include<iostream>
>>> using namespace std;
>>> int main()
>>> {
>>> unsigned long long int a, b, sum;
>>> while(scanf("%lld%lld", &a, &b) != EOF)
>>> {
>>> sum = 0;
>>> while(a != (b+1))
>>> {
>>> sum += (a & -a);
>>> a++;
>>> }
>>> printf("%lld\n", sum);
>>> }
>>> return 0;
>>> }
>>>
>>> Its giving TLE on some 10th case...
>>>
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>>
>>
>> --
>> Sunny Aggrawal
>> B-Tech IV year,CSI
>> Indian Institute Of Technology,Roorkee
>>
>>
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>
>
>
> --
> Regards,
> Arpit Sood
>
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--
Sunny Aggrawal
B-Tech IV year,CSI
Indian Institute Of Technology,Roorkee
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