Code a function requiredStrLength() which accepts two strings and return the amount of memory in bytes that must exists if the two strings are to be concatenated. For example, if s1=This is and s2= a beautiful day! are to be concatenated to =This is a beautiful day! then the function should return 25. This is because s1 has 7 characters, s2 has 17 characters and we have to account for the \0 character representing the end of string.

Prototype

int requiredStrLength(char *s1, char *s2);

Using

String functions strlen() in your code