Push Operation On Stack

Duration: 6 min

This video lesson is available to enrolled students.

Return to /learn/MPPSC-ASSISTANT-PROFESSOR-COMPUTER-SCIENCE-PAPER-2/data-structure-and-algorithms/stack/stack-basics-ops/asset-push-operation-on-stack after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About Course: About the Course
  2. Paper 1 | General Studies: State Wise GK
  3. Paper 1 | Information and Communication Technology: Role of Internet and Web Services, Security in Mobile and Wireless Computing
  4. Paper 1 | Current Affairs: GK- Current Affairs
  5. Paper 2 | Discrete Mathematical Structure: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Set Theory, Relations, Functions, Graph Theory, Group Theory, Propositional and Predicate Logic, Probability
  6. Paper 2 | Digital Computer Organization And Architecture: Number System, Number Representation, Sequential Circuits, Combinational Circuit, Basics of COA, Floating Point Rep, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Register Transfer and Microoperations, Control Unit Design, Programming the Basic Computer
  7. Paper 2 | C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  8. Paper 2 | Programming Languages & Object-Oriented Programming Concepts: Java, OOPS with C++, Java Fundamentals, Array, String, IO & References
  9. Paper 2 | Python: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  10. Paper 2 | Data Structure And Algorithms: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Minimum Spanning Trees, Advanced Algorithms
  11. Paper 2 | Operating System: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Unix OS
  12. Paper 2 | Theory Of Computation: Introduction to TOC, Deterministic FA (DFA), Non-Deterministic FA, Regular Expressions, Grammar, Regular Language Properties, Moore & Mealy Machines, Pushdown Automata & CFG, Turing Machines, Complexity Theory
  13. Paper 2 | Compiler Design: 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
  14. Paper 2 | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, Transaction Management, Concurrency Control, Database Recovery, Database Security & Authorization, Enhanced Data Models
  15. Paper 2 | Computer Network And Information Security: Introduction to CN, Data Communication, Application Layer, Hardware basics, Cyber Threats and Malware Attacks, Network Security, 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
  16. Paper 2 | Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  17. Paper 2 | Current Trends & Technologies: Emerging Tech Trends, Approaches to AI, Search Algorithms, Game Playing, Knowledge Representation, Planning, Multi Agent Systems, Fuzzy Sets, Natural Language Processing, Artificial Neural Networks, Genetic Algorithms, Artificial Intelligence, Data Warehousing & Mining, Electronic Data Interchange and E-Commerce, Terms & Abbreviations
  18. Paper 2 | Full Length Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video provides a detailed explanation of the "Push operation" within the context of stack data structures. The lecture begins by displaying a formal definition on the screen, explaining that pushing involves adding a new element to the top of the stack, which increments the top pointer by one. It also defines the "overflow condition" as the state where the array is full and cannot accommodate new elements. The instructor then transitions to a visual demonstration, drawing a ladder-like structure to represent the stack memory. He defines the function signature and walks through the algorithmic steps required to implement the push operation, including overflow checking and pointer manipulation.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a static slide defining "Push operation". The text reads: "The process of adding new element to the top of stack is called push operation... in the case the array is full... it is called over-flow condition." The instructor underlines the phrase "to the top of stack is called push operation" to emphasize the insertion point. He then draws a vertical ladder structure on the whiteboard to visualize the stack. He labels the rungs with indices 0, 1, 2, 3, 4. He writes the function prototype push(S, N, TOP, ITEM) on the left side. He populates the drawn stack with characters 'a', 'b', 'c', 'd' at indices 0, 1, 2, 3, and marks the current top pointer at index 3. He explains that 'a' is at the bottom and 'd' is at the top.

  2. 2:00 – 5:00 02:00-05:00

    The instructor begins writing the algorithm logic in red ink. He starts with a conditional check: if (TOP == N-1). He explains that if the top pointer equals the size minus one, the stack is full. In this case, he writes "write overflow & exit" to indicate the program should handle the error and stop. If the condition is false, he proceeds to the next step: TOP = TOP + 1. He explains that the top pointer must be incremented first to point to the next available empty slot. Finally, he writes S[TOP] = ITEM to show where the new data is stored. He emphasizes that the insertion happens at the new top position. He writes "end" or "exit" at the bottom of the algorithm.

  3. 5:00 – 5:42 05:00-05:42

    In the final segment, the instructor reviews the complete algorithm written on the board. The screen shows the full logic: checking for overflow, incrementing the top pointer, and assigning the item. He verbally summarizes the process, reinforcing that the top pointer moves up before the new element is placed. The video concludes with the full algorithm visible, serving as a reference for the push operation implementation. He points to the different parts of the code while speaking.

The lecture effectively bridges the gap between theoretical definition and practical implementation of the push operation. By using a visual ladder analogy and step-by-step algorithm writing, the instructor clarifies the sequence of operations, particularly the critical order of incrementing the top pointer before data insertion and the necessity of overflow checks. This structured approach helps students understand the underlying mechanics of stack manipulation in computer science.

Loading lesson…