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= is use to assign the value to the variable.It is an assignment operator.
where == is use to check if value is equal or not. It is comparison operator.
for example
a=5     here 5 is assigned to 'a'
a==5   here it check if the value of 'a' which is alreday declared in program is 5 or not.

In the C programming language, the symbol # serves as a preprocessor directive. Preprocessor directives are instructions that are processed before the actual compilation of the code. These directives typically start with # and are used to control various aspects of the compilation process.

1. Understand the Basics: Start with basic concepts like variables, data types, operators, and control statements (if-else, loops).

2. Learn Syntax: Focus on how C code is written – including functions, arrays, pointers, and structures.

3. Practice Regularly: Write simple programs daily. Practicing is key to mastering C.

4. Use Online Platforms: Websites like GeeksforGeeks, W3Schools, and Tutorialspoint have beginner-friendly tutorials.

5. Work on Small Projects: Try building calculators, pattern printers, or simple file handling programs.

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1. Variables and Data Types

• Why: Core to storing and manipulating data; forms the foundation of any program.

2. Operators

• Why: Essential for performing arithmetic, logical, and comparison operations in expressions.

3. Control Statements (if, switch, loops)

• Why: Enables decision-making and repetition — the backbone of logic flow.

4. Functions

• Why: Promotes reusability, modularity, and cleaner code.

5. Arrays

• Why: Allows storing multiple values in a single variable — essential for loops and data processing.

6. Pointers

• Why: Key to understanding memory management, arrays, and functions in C.

7. Strings

• Why: String manipulation is vital in user input, file handling, and text processing.

8. Structures

• Why: Lets you group different types of data; important for real-world data modeling.

9. File Handling

• Why: Crucial for reading/writing data persistently outside the program.

10. Dynamic Memory Allocation

• Why: Enables flexible memory usage for efficient programming (e.g., creating variable-sized structures).