1. Write the statements to read two strings s1 and s2 from user input and output the one that comes later in the lexicographic order.

2. Declare (not define) a function called longer that takes two strings as parameters (without using array notation) and returns the longer string.

3. Write a function removeSpaces that remove all space characters from a given string s1 and stores the result in a second string s2. Your function should have the following prototype:

void removeSpaces (char *s1, char *s2);

4. Complete the code below to print the second to last character of the string mystring.

char mystring[200];

scanf(%s, mystring); /* initialize from standard input */