Need help with python regular expression

Question

I need a regular expression in python to find all the overlapping substrings in a string that start and end with a specific character

For example:

My String is : "aacbb"

if start symbol is : 'a' and end symbol is : 'c'

the output should be : ['aac','ac']

if start symbol is : 'a' and end symbol is : 'b'

the output should be : ['aacbb','acbb','aacb','acb']

Answer 1

"^acquot;
"^abquot;
You can use the caret symbol (^) at the start of a regex to indicate that a match must occur at the beginning of the searched text. Likewise, you can put a dollar sign ($) at the end of the regex to indicate the string must end with this regex pattern. And you can use the ^ and $ together to indicate that the entire string must match the regex

Answer 2

Thanks for the reply mates,

Here is my code

import re
n=int(input())
string=input()
q=int(input())

for _ in range(q):
(x,y)=tuple(input().split(" "))
res=re.findall(f"(?=({x}.*{y}))",string)
print(len(res))

Input

5
aacbb
2
a c
a b

Output
2
2

Expected Correct Output
2
4

Answer 3

I hope that someone will help u,
Because I'm just a beginner😁