Chapter 9, Problem 8E

Using the f , r , and i functions from preceding exercises, write a function called r that takes three character string arguments as follows

r

and that replaces s inside source with the character string s .The function should call

the f function to locate s inside source, then call the

r function to remove s from source, and finally call the

i function to insert s into source at the proper location.

So, the function call

r

replaces the first occurrence of the character string̎ inside the character string t , if it exists, with the string ̎ . Similarly, the function call

r

has the effect of removing the first asterisk inside the t array because the replacement string is the null string.