A program that checks if an input is a legal identifier in C . Example input/output: Input: amp;count Output: illegal identifier Input: co%unt...

A program that checks if an input is a legal identifier in C . 

Example input/output: 

Input: &count 

Output: illegal identifier 

Input: co%unt 

Output: illegal identifier 

Input: count_3 

Output: legal identifier 

Input: 3count 

Output: illegal identifier 

1) Name your program identifiers.c

2) Use getchar() to read in the input. The user input ends with the user pressing the enter key (a new line character).