Problem Statement: 
Write a C program to take an integer number from user and print it on screen.

Required Knowledge: 
C Input/Output, C Variables,  C Datatypes

Solution: 

Explanation: 

• We have declared variable 'num' of type 'int' to hold the value of number entered by user.
• Then we display helper message "Enter an integer number:" to user using printf() library function.
• To read number from user we use scanf() library function. Here '%d' indicates that we are reading decimal/integer number. Do note that in scanf() we pass address of variable. i.e. &num 
• To print the read value we use printf(). Things to note here is in printf() we use name of variable as it is i.e. num

Step by Step Walk-through of Program: