Create
a
program
that
counts
the
number
of
pairs
of
succeeding
letters
in
a
given
phrase.
The
program
will
stop
when
the
enter
key
is
hit.
For
example,
the
phrase
“a
bC_df
g”
has
four
such
pairs:
ab,
bc,
cd
and
fg.
Note
that
characters
aside
from
letters
are
disregarded
and
it
also
doesn’t
matter
whether
the
letter
is
in
upper
case
or
in
lower
case.
We're only allowed to use basic functions. Arrays and pointers are not allowed. What do I do?
