C

Question 1

What is pointer? How to create pointer, how to print address with pointer(specifier), what is indentation operator?

Answer 1

• variable that stores address of another variable
• use * operator
• use %p specifier
• *varName is indentation poerator

Question 2

How gets() anf fgets() works?

Answer 2

• gets(): read one line input, usnafe of size of input gets large, leading to buffer overflow
• ## fgets() reads a line of input safely into a buffer, allowing us to specify the maximum size to prevent overflow

Question 3

what is argc and *argv in C