Unsigned vs long long

[dormant]

in one of the problem PRIME AGAIN
when i used long long int for the variablles i got TLE

but when i changed it into unsigned i got AC.

So I want to know that does that make that much difference.
and please explain why the difference is there.
Thanx in advance

[TripleM_sof]

Unsigned means precisely that.. the number is unsigned. So a 64 bit signed integer can be anything from -2^63 to 2^63-1, a 64 bit unsigned integer can hold anything from 0 up to 2^64 - 1.

[dormant]

yes i know that.
but Why does the data type chosen for variable made so much difference.That i m not getting.
,ie,before when i was using long long int,i got TLE

but after using unsigned int in place where i used long long int ,I got Ac.

P.S. I know sizeof long long is greater than size of size of unsigned int

[TripleM_sof]

Well, that completely depends on your code..

[dormant]

Please be a little more specific.
I dint get that line
" That depends on your code"