C Programming Tutorials — From Beginner Basics to Advanced Concepts

Flat illustration of a bold letter C with pointer arrows memory blocks stack diagram and file handling icons representing C programming tutorials

C is one of the most important programming languages ever created. Developed in the early 1970s, it remains the foundation of operating systems, embedded systems, compilers, and high-performance software used across the world today. Learning C gives you a deep understanding of how computers actually work — memory, pointers, data structures, and low-level system operations that higher-level languages hide from you.

At MYCPLUS we have been publishing C programming tutorials, source code examples, and practical guides since 2004. Whether you are writing your first Hello World program or working through complex data structure implementations, this section covers every stage of the C learning journey. You will find step-by-step tutorials, working source code you can compile and run immediately, and clear explanations of concepts that are often poorly explained elsewhere.

C is the language that powers Linux, Windows internals, embedded microcontrollers, game engines, and countless performance-critical applications. If you want to become a serious systems programmer, understand how memory works, or simply build a rock-solid foundation before moving to C++, Java or Python — start here.

What You’ll Learn:

  • Core C syntax — variables, data types, operators, control flow and functions explained from first principles
  • Pointers and memory management — heap allocation, pointer arithmetic, dynamic arrays and avoiding memory leaks
  • Data structures in C — arrays, linked lists, stacks, queues and trees implemented from scratch
  • File handling — reading and writing files, binary data and practical I/O operations in C
  • Algorithms in C — sorting, searching, recursion and graph traversal with working source code examples
  • Systems programming concepts — understanding how C interacts with the operating system, processes and memory

Why MYCPLUS Trusted by C programmers since 2004 — every tutorial includes working source code you can compile, run and learn from immediately.

Scientific Calculator - C Implementation

Graphical Scientific Calculator with Advance Features

This is a C implementation of basic and few advance scientific features of calculator. It shows a nice graphical UI of the calculator with 3D buttons and demonstrates click button animation functionality. The functionalities of the calculator includes: Basic Mathematics (Add, Subtract, Multiply and Divide), Advance Mathematics (Square root, Square, Cube), Logarithmic Functions (Log, Natural Log (ln), e, Exponential), Number Conversions (Binary, Decimal, Hexadecimal and Octal), Trigonometric Functions (Sine, Cosine, Tangent, Cotangent, Secant and Cosecant), Angle Measurement (Degree, Radia and Gradian), Other Functions (Memory, Pi and Inv).

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Automated System for Bank Management

This C program is a simple banking system designed for novice programmers. The program uses graphics.h for graphical user interface elements, such as windows and buttons, and provides basic banking functionalities like creating a new account, listing all accounts, and handling account transactions. The program starts with an introduction, displaying the name of the bank using basic graphics functions.

Print days of week in C

Display Days of Week using enum Keyword in C

This C program uses enumerated types to display days of week. The enumerated type is then declared as a different name using typedef keyword i.e. enum days  to typedef enum days days. The function prints for each day of the week, today, yesterday, and tomorrow, both as a string and as a number.

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