Given the program below. Answer the following question. #include stdio.h> #define INCREMENTER(a,b) (a > b) ? b : a int main) I int a = 2; int b 3 int result result INCREMENTERa++, b) printf("a is %d, b is 96d, and result is %dn", a, b, result); result = INCREMENTER(++a, b); printf("a is %d, b is 96d, and result is %dn", a, b, result); return 0; What is the output of the program? In a doubly linked list, when is the tail pointer equal to the head pointer? Select all that apply O They never equal. When there is one node only When the list is empty O When there are more than one node Question 3 Given the following snippet of code, answer the following two questions based on the code: typedef enum (Sun, Mon, Tue, Wed, Thu, Fri, Sat) days days x Mon, y Sat; while (x le y)(x) printf("X %d, y %d", x3 1. What value will be printed for variable x? Error 2, what value will be printed for variable y?| Error Pinclude estring h man ot int n-0, len: char strt) hello world len strlenser hello thss You must write a program that implements the same functionality, but use pointer operations only (without using any array declaration and operations that use index to access the characters in the string. Question 4 Please explain the differences between a pointer type and an unsigned int type. Type your answer in the following text box