1) The document contains 5 programming exercises involving recursive functions, factorials, loops, and switch/case statements. 2) For each exercise, the student is asked to compile and run the provided code, explain how it works, and make modifications as instructed. 3) Modifications include changing hardcoded values to user input, altering loop structures, and replacing switch/case with if/else statements.

1. left0UNIVERSITI TUN HUSSEIN ONN MALAYSIA<br />FACULTY OF MECHANICAL AND MANUFACTURING ENGINEERING <br />DTI 2143: COMPUTER PROGRAMMING<br />LAB EXERCISE 9 RECURSIVE and All-round Recap<br />Exercise 1.0: Compile and run the program below<br /># include<stdio.h><br /># include<conio.h><br />void recursiveFunction(int num) {<br /> if (num < 4)<br /> recursiveFunction(num + 1);<br /> printf(\"
%d\n\"
, num);<br />}<br />int main()<br />{<br /> int x = 2;<br /> recursiveFunction(x);<br /> <br />getch();<br />return 0;<br />}<br />Explain how the calculation work

2. Edit the coding so that the value of x is keyed in my the userExercise 2.0: Compile and run the program below<br /># include<stdio.h><br /># include<conio.h><br />int factorial(unsigned int number)<br />{<br /> if(number <= 1)<br /> return 1;<br /> return number * factorial(number - 1);<br />}<br />int main()<br />{<br /> int x = 5;<br /> printf(\"
factorial of %d is %d\"
,x,factorial(x));<br />getch();<br />return 0;<br />}<br />Explain how the calculation work