Question

the count repeated characters method looks for character sequences of the form xyy, that is, a character followed by the same character and preceded by a different one. that is the start of a group. note that there are two conditions. the condition

Answer 1

Okay, breaking down the count repeated characters method:

The goal is to find sequences of the form:

xyy

Where:

x is a character

y is the same character that follows x

The two conditions are:

1) y is the same character that follows x

2) x is a different character from y

So some examples of sequences that would match are:

aba

cad

eef

But these would not match:

abb

ccd

fff

Since in those cases, both x and y are the same character.

The key is that there needs to be a transition from one character to two of the same character, to identify a repeated character sequence.

Hope this clarifies the count repeated characters method! Let me know if you have any other questions.