C Programming & Data Structures
26 articles in this topic
Instruction Formats and Expanding Opcode for GATE: Solved Encoding Numericals
Treat every instruction format as a bit budget. A four-level worked example shows exactly how unused opcode patterns expand into the next instruction class.
C Programming Fundamentals: Complete Guide with Worked Examples for GATE and Placements
Build a reliable C foundation through traced outputs, pointer arithmetic, function calls, arrays, structures, recursion, and memory allocation.
Structured Knowledge Representation Models: Semantic Networks, Frames, Scripts and Worked Inheritance
Learn how structured knowledge models store relations, attributes and events. Trace defaults and exceptions through one exact Bird, Penguin and Pingu example.
Arrays and Pointers in C: Complete Guide with Worked Examples for GATE and Interviews
Build one clear mental model for C arrays and pointers. Trace addresses, decode tricky expressions, solve a 2D-array numerical, and practise an in-place reversal.
C Programming for GATE: Syllabus Areas, Weightage Pattern and How to Prepare
Understand where C fits in GATE CS, what exam questions test, and how to build reliable tracing skills through pointers, recursion and structured practice.
C Programming by Yash Sir: Complete Guide with Worked Examples
Build C from evaluation rules to pointers with worked output traces, a recursion call stack, memory diagrams, common traps, and a clear route into exam and placement practice.
Dynamic Memory Allocation in C: malloc, calloc, realloc and the Bugs Exams Test
Follow one resizable integer array from allocation to release. The worked trace explains byte counts, preserved values, uninitialised elements and the safe temporary-pointer pattern.
Arrays and Strings in C: Array-to-Pointer Decay, sizeof Traps and 2D Address Arithmetic
Learn what an array name means in C, why sizeof changes across a function boundary, and how to calculate 1D and 2D element addresses without guessing.
Storage Classes in C (auto, static, extern, register): Scope, Lifetime and Exam Questions
Separate scope, lifetime, storage duration and linkage, then use one static-versus-auto program and a two-file extern example to predict exam answers.
DMA, Interrupts and Programmed I/O for GATE: Cycle-Stealing and Overhead Numericals Solved
Track who moves the data, who owns the bus and how often the CPU must intervene. Two worked numericals turn DMA and interrupt overhead into simple rate calculations.
C Programming Interview Questions for Freshers: The 40 Asked in Vivas and Placement Drives
Prepare 40 common C questions with short interview-safe answers, then learn how to dry-run pointer mutation on a whiteboard.
Pointers in C for GATE: Memory Diagrams and Output Traces
Draw pointers as addresses in boxes, then trace double pointers, arrays, swaps and precedence without guessing. The worked outputs show the method GATE rewards.