please answer both the questions

answer the 5 th question please

Question 4 [10). Consider the Student struct as defined in Question 1 above. Implement the stack with doubly linked list whose cach node has data component an instance of the struct Student. Page 1 of 2 Implement the following (1) push five elements to the stack (ii) pop an element from the stack (it) get the size of the stack (iv) check whether the stack is empty or not (v) print the stack. Don't include stack.h. Question 5 [11]. Give an analysis of the running time for the following code fragments (a)-e) in the worst case. Assume all variables are of type int unless specified otherwise. (a) a - b + c: dae (b) num = 0; for (1-0; i