In the following list of letters, how many O's are immediately followed by Q's but not immediately preceded by D's?
DOQODQODODQDOQDSDQPOQDSSSDOQOQDOQDDDOQ
A0
B1
C2
D3
how is this wrong.
In the following list of letters, how many O's are immediately followed by Q's but not immediately preceded by D's?
DOQODQODODQDOQDSDQPOQDSSSDOQOQDOQDDDOQ
A0
B1
C2
D3