C Puzzles

Not a puzzle exactly.

Q. Are you familiar with curly bracket matching in vi editor?
(FYI: you may use % to find matching curly brackets)

implement this feature in 'your own' editor.

[you may even give a single-WORD-answer :-]

To simplify the question...
imagine a text with curly brackets like the following
"{{}{{}{}}{}}"

Input/output:
2nd curly matches with 3rd
1st curly with last one
4th with 9th

Now start writing the program.

Q. we have identified a problem in our hardware memory.

   |<--------------32-bit---------->|

   +--------------------------------+
   |             A                  |
   +--------------------------------+
   |             B                  |
   +--------------------------------+
   |             C                  |
   +--------------------------------+
   |             D                  |
   +--------------------------------+
   |             E                  |
   +--------------------------------+
   |             F                  |
   +--------------------------------+

Whenever we give instruction to write something to A it writes to B. and vice versa.

it occurs in a similar pattern for rest of the memory. like C to D, D to C, E to F, F to E, and so on.

write a workaround(in a single line).