De-obfuscate the obfuscated C code || Programming Knowledge

Hello friends!

Welcome to my YouTube channel "Programming Knowledge".
In previous video of this series, I have shown you how to convert simple code to obfuscated code.
In this video, I will show you some more obfuscation techniques and how to de-obfuscate this obfuscated code.
We will de-obfuscate the code of C language, which is not contain any semicolon or curly bracket.
To obfuscate this code, I have used 3 basic techniques of C language.
I will de-obfuscate this code step by step and show you the techniques that I have used.

- In the first sentence, I have used hash include techniques.
https://youtu.be/WOJIi0xb_Jk
You can get more knowledge from the above link.
It contains inclusion of the header file, lots of macro definition and use of the type definition.
Well, it's not necessary to include these many macro definition, I have included it because I want to show you that you can use it in different way also.

- Macro Definition

In the C Programming Language, the hash define directive allows the definition of macros within your source code. These macro definitions allow constant values to be declared for use throughout your code.
Macro definitions are not variables and cannot be changed by your program code like variables. You generally use this syntax when creating constants that represent numbers, strings or expressions.

syntax:

#define CNAME value
OR
#define CNAME (expression)
Well, the most fascinating things about it is that you can replace some text pattern with different string like in this example I can replace printf function with p.
Isn't it amazing?

- Typedef:

typedef is a keyword used in C language to assign alternative names to existing datatypes. Its mostly used with user defined datatypes, when names of the datatypes become slightly complicated to use in programs. Following is the general syntax for using typedef,
typedef <existing_name> <alias_name>
Well, I have used these 3 different techniques to obfuscate my program.
By this three techniques, you can play with your source code and make it look more horrible.
Most of the programmer uses these techniques to obfuscate the source code.

Obfuscated Code:

#include "oop.txt"

____ q(____ a __ ____ b) v ____ i __ t=1 _ x i=0 _ i z b _ i e) t h a _ u t _ w

_____ ___ v c ____ a __ b _ s a ) _ s b ) _ p __ q (a __ b)) _ g w

Text File:

#include<stdio.h>

#include<conio.h>

#define _ ;

#define __ ,

#define ___ main()

#define c clrscr();

#define g getch();

#define p printf("%d"

#define s scanf("%d",&

#define u return

#define x for(

#define v {

#define w }

#define z <

#define h *=

#define e ++

typedef int ____;

typedef void _____;

Normal Code(De-obfuscated code):

#include<stdio.h>

#include<conio.h>

int q(int a , int b) { 

int i , t=1 ;

  for(i=0;i<b;i ++)

t *= a ;

return t; 

}

void main() {

clrscr(); int a , b ; 

scanf("%d",&a);

scanf("%d",&b); 

printf("%d",q(a , b));

getch(); 

}