Write a program that accepts an integer between 1 and 12 from the keyboard and prints the fi rst three letters of the corresponding month. For instance, keying in 3 should print Mar. All month names...

Write a program that accepts an integer between 1 and 12 from the keyboard and prints the fi rst

three letters of the corresponding month. For instance, keying in 3 should print Mar. All month

names must be extracted from a single string without using an if or switch statement.

Develop a function named char_replace(s, c1, c2) which replaces all occurrences of the

character c1 in the string s with c2 and returns the number of characters replaced.