Enqueue Operation On Queue

Duration: 5 min

This video lesson is available to enrolled students.

Return to /learn/NIACL-AO-IT-SPECIALIST/data-structure-it-specialist/queue/basics-stack-mix/asset-enqueue-operation-on-queue after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Quantitative Aptitude: Ratio and Proportion (Ratios), Data Interpretation, Mixture and Alligation, Permutation and Combination, Number System, Sequence and Series (Series), Speed Time and Distance, Speed Mathematics and Basic Mathematics, Algebra, Percentage, Profit and Loss, Simple Interest and Compound Interest, Powers and Exponents (Surds and Indices), Time and Work, Mensuration and Geometry, Partnership
  2. Reasoning Ability: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Seating Arrangements, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Directions (Direction Test), Ranking, Order and Sequence, Syllogisms, Blood Relations, Puzzle Solving (Puzzles), Inequality, Machine Input-Output
  3. English Language: Vocabulary, Noun, Subject Verb Agreement (Verb Noun Agreement), Adjectives, Tenses, Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Cloze Test (Cloze Passage), Sentence Correction (Error Correction), Sentence Completion (Fill in the blanks), Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Sentence Construction, Pronoun, Preposition, Conjunction, Adverb, Verb, Modals, Articles, Determiner, Interjection
  4. General Awareness: Evolution of Indian Banking (Banking & Financial Awareness), GK- Current Affairs, Static General Knowledge, Indian Economy
  5. C Concepts + MCQs (IT Specialist): C Programming by Yash Sir, C Language Core
  6. Java (IT Specialist): Java
  7. Python (IT Specialist): Python for Placements by Yash Sir, Python Basics
  8. OOPs (IT Specialist): Object Oriented Programming (OOPS)
  9. DBMS (IT Specialist): Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, Relational Calculus, Transaction Management, Concurrency Control, Database Recovery, ORDBMS, Database Security & Authorization, Query Processing & Optimization, Enhanced Data Models, Data Warehousing & Mining, Big Data Systems, NoSQL
  10. SQL (IT Specialist): SQL
  11. Software Engineering (IT Specialist): Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  12. Data Structure (IT Specialist): Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
  13. Operating System (IT Specialist): Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Windows OS, Linux OS, Security, Distributed Systems, Virtual Machines
  14. Compiler Design (IT Specialist): Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization, Run Time Environment
  15. Computer Architecture (IT Specialist): Basics of COA, Floating Point Rep, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Control Unit Design, Register Transfer and Microoperations, Multiprocessors, Programming the Basic Computer
  16. Data Communication & Networking (IT Specialist): Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Security
  17. Descriptive Test (Main Exam): English Writing Ability
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video lecture, presented by Sanchit Jain Sir from Knowledge Gate, focuses on the 'Insertion' operation within a queue data structure implemented using a fixed-size array. The instructor begins by drawing an array of size 8, indexed from 0 to 7, to visualize the storage. He defines a function `Q_in(Queue, N, F, R, item)` where N is the size, F is the front pointer, R is the rear pointer, and item is the data to be inserted. The lecture systematically breaks down the algorithm into conditional logic, starting with overflow checks and initialization steps. The instructor uses red handwriting to write pseudocode on the screen, explaining how to handle the queue when it is full or empty. He demonstrates the process by populating the array with sequential characters, illustrating the movement of the rear pointer as elements are added.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with the title 'Insertion' and a blank array of 8 boxes. The instructor introduces the function signature `Q_in(Queue, N, F, R, item)` written in red ink. He explains the parameters: Queue, N (size), F (front), R (rear), and item. He begins writing the logic, starting with the condition `if (R == N-1)`. This check determines if the queue is full in a linear implementation. If true, he writes 'write overflow & exit'. Next, he introduces the condition `if (F == -1)` to check if the queue is empty. For an empty queue, he writes the initialization step: 'set F=0 & R=0'. This segment establishes the foundational checks required before any insertion can occur.

  2. 2:00 – 4:53 02:00-04:53

    The instructor completes the insertion algorithm by writing the `else` block. He writes `R = R + 1` to increment the rear pointer for subsequent insertions after the first one. Then, he writes `Queue[R] = item` to store the new element at the updated rear position. To demonstrate this logic, he fills the array boxes with the characters 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h' sequentially. He points to the 'R' pointer moving from index 0 to 7 as the array fills up. This visual demonstration reinforces the concept of linear insertion where the rear pointer moves forward until the array is full, solidifying the understanding of the `Q_in` function's execution flow.

The lecture progresses logically from defining the problem and function parameters to implementing the core algorithm. It covers the critical edge cases of overflow and empty queue initialization. The demonstration with characters 'a' through 'h' provides a concrete example of the abstract logic, showing how the rear pointer increments and data is stored sequentially. This forms the basis for understanding linear queue insertion before potentially moving to circular queue variations.

Loading lesson…