Powers of two
You need to know the powers of two like the back of your hand.
The most imporant one that people test on are 2^10
. Its generally safe to assume 1000
(instead of exact 1024
).
You will be asked to use it for stuff like
log2 (n)
. A thousand is10
a million is20
a billion is30
You will use it to get KB (
/1000
) MB (/1000000
) etc.
Note KB/MB/GB/TB are used for bytes. Its best to stick with this for napkin discussions.
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