- #1
nille40
- 34
- 0
Hi all!
I'm in serious need of some help.
The question:
How many binary strings of length 10 contains exactly two "01"?
My idea was to weld together 4 bits to 2 "01". That way, there's [tex]\frac{8!}{2!}[/tex] strings with at least 2 "01". But there are a bunch of strings with more than 2 "01" in these, and these must be accounted for. How can I locate these?
Thanks in advance,
Nille
I'm in serious need of some help.
The question:
How many binary strings of length 10 contains exactly two "01"?
My idea was to weld together 4 bits to 2 "01". That way, there's [tex]\frac{8!}{2!}[/tex] strings with at least 2 "01". But there are a bunch of strings with more than 2 "01" in these, and these must be accounted for. How can I locate these?
Thanks in advance,
Nille