01
Getting Started with C Programming
Your first step into C programming! Learn how to install a compiler, set up your computer, and write your very first "Hello World" program. No prior experience needed.
10 min readTutorial
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36 Tutorials Available
C Programming Tutorials
Master C programming with our comprehensive tutorial series. Follow the structured path or jump to any topic you want to learn.
Complete Learning Path
Follow these tutorials in order for the best learning experience
Beginner
02
Basic Syntax in C
Learn the fundamental building blocks of C programs. Understand the main() function, how to write comments, and why proper formatting makes code readable.
12 min readTutorial
Read
03
Identifiers in C
Learn the rules for naming things in C - variables, functions, and more. Know what names are valid, and follow naming conventions that professionals use.
10 min readTutorial
Read
04
Keywords in C
Learn all 32 reserved words in C that have special meaning. These words are reserved by C and cannot be used as variable names.
12 min readTutorial
Read
05
Data Types & Variables
Learn to store different kinds of data: numbers (int), decimals (float), and characters (char). Understand how much memory each type uses.
20 min readTutorial
Read
06
Input/Output in C
Make your programs interactive! Learn to display output with printf() and read user input with scanf(). Essential for every C program.
18 min readTutorial
Read
07
Escape Characters in C
Master escape sequences like \n (newline), \t (tab), \\ (backslash), and \" (quotes). Essential for formatting output and handling special characters.
15 min readTutorial
Read
08
C Operators and Expressions
Learn all the operators in C: math (+, -, *, /), comparisons (==, <, >), and logical operations (&&, ||). Build expressions that compute values.
15 min readTutorial
Read
09
Operator Precedence & Associativity
Understand which operators are evaluated first. Learn the PUMAS REBL TAC memory trick and when to use parentheses.
12 min readTutorial
Read
10
Control Flow & Decision Making
Make your programs smart! Use if-else to make decisions and switch for multiple choices. Programs can now respond differently to different situations.
18 min readTutorial
Read
11
Loops in C
Repeat actions automatically! Master for, while, and do-while loops. Learn which loop to use when, and how to control loops with break and continue.
20 min readTutorial
Read
12
Functions in C
Organize code into reusable blocks! Functions let you write code once and use it many times. Learn to create, call, and pass data to functions.
20 min readTutorial
Read
13
Static Keyword in C
The static keyword gives variables memory that persists between function calls. Learn how static creates "sticky" variables and private globals.
12 min readTutorial
Read
14
Storage Classes in C
Control how variables live and where they are stored. Learn auto, static, register, and extern - the four storage classes in C.
18 min readTutorial
Read
15
Arrays in C
Store multiple values of the same type together! Learn 1D arrays (lists), 2D arrays (tables), and how arrays are stored in memory.
22 min readTutorial
Read
16
Strings in C
Strings are character arrays ending with \0. Learn to create strings, read them safely, and use string functions like strlen, strcpy, strcmp.
20 min readTutorial
Read
17
Enumerations in C
Create named constants for better code readability. Instead of using 0, 1, 2 for days, use MON, TUE, WED with enums.
12 min readTutorial
Read
18
Structures in C
Group related data together! Create your own data types with struct. Store a student's name, age, and grade in one variable.
22 min readTutorial
Read
19
Unions in C
Unions are like structures but all members share the same memory. Useful for saving memory when you only need one field at a time.
15 min readTutorial
Read
20
Pointers in C
The most powerful feature in C! Pointers store memory addresses. Learn what they are, why they matter, and how to use them safely.
25 min readTutorial
Read
21
Pointer Arithmetic in C
Add and subtract with pointers! Learn how pointer math works with arrays and why ptr++ moves by the size of the data type.
18 min readTutorial
Read
22
C Program Memory Layout
See how C programs are organized in RAM! Learn about Stack, Heap, Data, BSS, and Text segments. Essential for understanding memory.
18 min readTutorial
Read
23
Dynamic Memory Allocation
Allocate memory at runtime! Use malloc, calloc, realloc, and free. Create arrays whose size you don't know until the program runs.
22 min readTutorial
Read
24
Structures and Dynamic Memory
Combine structs with malloc! Create dynamic arrays of structures that grow as needed. Build real data structures.
18 min readTutorial
Read
25
File Handling in C
Read and write files! Learn fopen, fclose, fprintf, fscanf, and more. Save data permanently and load it back.
25 min readTutorial
Read
26
C stdio.h Library Reference
Complete reference for stdio.h - all printf, scanf, and file functions with prototypes, parameters, and examples.
20 min readTutorial
Read
27
C stdlib.h Library Reference
Complete reference for stdlib.h - memory allocation, string conversion, random numbers, sorting, and program control.
20 min readTutorial
Read
28
C string.h Library Reference
Complete reference for string.h - strlen, strcpy, strcat, strcmp, searching, and memory functions.
18 min readTutorial
Read
29
C math.h Library Reference
Complete reference for math.h - power, roots, trigonometry, logarithms, and rounding functions.
15 min readTutorial
Read
30
C ctype.h Library Reference
Complete reference for ctype.h - character classification (isalpha, isdigit) and conversion (toupper, tolower).
12 min readTutorial
Read
31
C time.h Library Reference
Complete reference for time.h - getting time, formatting dates, measuring durations, and working with timestamps.
18 min readTutorial
Read
32
UNIX/Linux System Calls
Interact with the operating system directly! Learn open, read, write, fork, exec, and other system calls that give C its power on UNIX/Linux.
25 min readTutorial
Read
33
C Preprocessor Directives
Code that runs before compilation! Learn #include, #define macros, and conditional compilation with #ifdef.
18 min readTutorial
Read
34
Recursion in C
Functions that call themselves! Learn this powerful technique, understand how it uses the stack, and know when to use it.
22 min readTutorial
Read
35
Function Pointers in C
Store functions in variables! Pass functions as arguments, create callbacks, and build flexible code.
18 min readTutorial
Read
36
Bitmasks and Bit Manipulation
Work with individual bits! Set, clear, toggle, and check bits. Implement permission systems and flags efficiently.
18 min readTutorial
Read
🚀 Getting Started
Begin your C programming journey
📝 Basics
Core concepts of C programming
02
Basic Syntax in C
Learn the fundamental building blocks of C programs. Understand the main() function, how to write comments, and why proper formatting makes code readable.
12 min readTutorial
Read
03
Identifiers in C
Learn the rules for naming things in C - variables, functions, and more. Know what names are valid, and follow naming conventions that professionals use.
10 min readTutorial
Read
04
Keywords in C
Learn all 32 reserved words in C that have special meaning. These words are reserved by C and cannot be used as variable names.
12 min readTutorial
Read
05
Data Types & Variables
Learn to store different kinds of data: numbers (int), decimals (float), and characters (char). Understand how much memory each type uses.
20 min readTutorial
Read
06
Input/Output in C
Make your programs interactive! Learn to display output with printf() and read user input with scanf(). Essential for every C program.
18 min readTutorial
Read
07
Escape Characters in C
Master escape sequences like \n (newline), \t (tab), \\ (backslash), and \" (quotes). Essential for formatting output and handling special characters.
15 min readTutorial
Read
08
C Operators and Expressions
Learn all the operators in C: math (+, -, *, /), comparisons (==, <, >), and logical operations (&&, ||). Build expressions that compute values.
15 min readTutorial
Read
09
Operator Precedence & Associativity
Understand which operators are evaluated first. Learn the PUMAS REBL TAC memory trick and when to use parentheses.
12 min readTutorial
Read
17
Enumerations in C
Create named constants for better code readability. Instead of using 0, 1, 2 for days, use MON, TUE, WED with enums.
12 min readTutorial
Read
🔀 Control Flow
Decision making and loops
10
Control Flow & Decision Making
Make your programs smart! Use if-else to make decisions and switch for multiple choices. Programs can now respond differently to different situations.
18 min readTutorial
Read
11
Loops in C
Repeat actions automatically! Master for, while, and do-while loops. Learn which loop to use when, and how to control loops with break and continue.
20 min readTutorial
Read
⚡ Functions
Modular programming with functions
12
Functions in C
Organize code into reusable blocks! Functions let you write code once and use it many times. Learn to create, call, and pass data to functions.
20 min readTutorial
Read
13
Static Keyword in C
The static keyword gives variables memory that persists between function calls. Learn how static creates "sticky" variables and private globals.
12 min readTutorial
Read
14
Storage Classes in C
Control how variables live and where they are stored. Learn auto, static, register, and extern - the four storage classes in C.
18 min readTutorial
Read
📊 Arrays & Strings
Working with collections
15
Arrays in C
Store multiple values of the same type together! Learn 1D arrays (lists), 2D arrays (tables), and how arrays are stored in memory.
22 min readTutorial
Read
16
Strings in C
Strings are character arrays ending with \0. Learn to create strings, read them safely, and use string functions like strlen, strcpy, strcmp.
20 min readTutorial
Read
🏗️ Structures
Custom data structures
18
Structures in C
Group related data together! Create your own data types with struct. Store a student's name, age, and grade in one variable.
22 min readTutorial
Read
19
Unions in C
Unions are like structures but all members share the same memory. Useful for saving memory when you only need one field at a time.
15 min readTutorial
Read
24
Structures and Dynamic Memory
Combine structs with malloc! Create dynamic arrays of structures that grow as needed. Build real data structures.
18 min readTutorial
Read
🎯 Pointers & Memory
Master pointers and memory
20
Pointers in C
The most powerful feature in C! Pointers store memory addresses. Learn what they are, why they matter, and how to use them safely.
25 min readTutorial
Read
21
Pointer Arithmetic in C
Add and subtract with pointers! Learn how pointer math works with arrays and why ptr++ moves by the size of the data type.
18 min readTutorial
Read
22
C Program Memory Layout
See how C programs are organized in RAM! Learn about Stack, Heap, Data, BSS, and Text segments. Essential for understanding memory.
18 min readTutorial
Read
23
Dynamic Memory Allocation
Allocate memory at runtime! Use malloc, calloc, realloc, and free. Create arrays whose size you don't know until the program runs.
22 min readTutorial
Read
📁 File I/O
Reading and writing files
📚 Standard Libraries
C standard library reference
26
C stdio.h Library Reference
Complete reference for stdio.h - all printf, scanf, and file functions with prototypes, parameters, and examples.
20 min readTutorial
Read
27
C stdlib.h Library Reference
Complete reference for stdlib.h - memory allocation, string conversion, random numbers, sorting, and program control.
20 min readTutorial
Read
28
C string.h Library Reference
Complete reference for string.h - strlen, strcpy, strcat, strcmp, searching, and memory functions.
18 min readTutorial
Read
29
C math.h Library Reference
Complete reference for math.h - power, roots, trigonometry, logarithms, and rounding functions.
15 min readTutorial
Read
30
C ctype.h Library Reference
Complete reference for ctype.h - character classification (isalpha, isdigit) and conversion (toupper, tolower).
12 min readTutorial
Read
31
C time.h Library Reference
Complete reference for time.h - getting time, formatting dates, measuring durations, and working with timestamps.
18 min readTutorial
Read
🔥 Advanced Topics
Deep dive into C
32
UNIX/Linux System Calls
Interact with the operating system directly! Learn open, read, write, fork, exec, and other system calls that give C its power on UNIX/Linux.
25 min readTutorial
Read
33
C Preprocessor Directives
Code that runs before compilation! Learn #include, #define macros, and conditional compilation with #ifdef.
18 min readTutorial
Read
34
Recursion in C
Functions that call themselves! Learn this powerful technique, understand how it uses the stack, and know when to use it.
22 min readTutorial
Read
35
Function Pointers in C
Store functions in variables! Pass functions as arguments, create callbacks, and build flexible code.
18 min readTutorial
Read
36
Bitmasks and Bit Manipulation
Work with individual bits! Set, clear, toggle, and check bits. Implement permission systems and flags efficiently.
18 min readTutorial
Read