The strcmp() function takes two arguments:
string1 and string2. It compares the contents of string1 and string2 lexicographically.
The strcmp() function returns a:
1. Positive value if the first differing character in string1 is greater than the corresponding character in string2. (ASCII values are compared)
2. Negative value if the first differing character in string1 is less than the corresponding character in string2.
3. 0 if string1 and string2 are equal.