LALR(1) Part - 2

Duration: 8 min

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Inside: a video lesson and guided study material.

Module outline

  1. General Intelligence & Reasoning: Analogy, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Blood Relations, Directions (Direction Test), Ranking, Order and Sequence, Logical Sequence Of Words, Syllogisms, Venn Diagram, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Selection Decision Table (Decision Making), Data Sufficiency, Puzzle Solving (Puzzles), Data Arrangement, Cubes & Dices, Calendar, Clock, Arithmetic, Number System, HCF LCM, Verbal Analogy (Word Based Analogy), Visual Recognition and Figure Completion, Paper Folding and Cutting, Transformation of Shapes, Clocks and Calendars, Direction Sense, Cubes and Dice, Patterns in Two-Dimensional Figures, Seating Arrangements, Analogy and Classification, Logical Deduction and Induction, Alphabet and Word Tests, Mathematical Operations, Series Completion, Simplification and Approximation, Coding and Decoding, Numerical Reasoning, Assembling and Grouping of Shapes, Three-Dimensional Patterns and Visualization, Vocabulary, Number System, Averages, Mixtures and Alligation, Simple and Compound Interest, Percentages, Algebra, Speed, Time and Distance, Seating and Arrangement Puzzles, Traverse Surveying, Order, Ranking and Sequence, Constraint Puzzles, Syllogisms and Venn Diagrams, Reading Comprehension, Critical Reasoning, Permutations and Combinations, Narrative Sequencing, Project Monitoring, Resources and Safety, Profit, Loss and Discount, Ratio and Proportion, Time and Work, Mensuration, Data Interpretation, Powers, Surds and Logarithms, Sequences and Series, Articles and Determiners, Sentence Completion, Data Sufficiency, Blood Relations, Simple Interest and Compound Interest, Mixture and Alligation, Sequence and Series (Series), Speed Time and Distance, Algebra, Profit and Loss, Powers and Exponents (Surds and Indices), Permutation and Combination
  2. General Awareness: Physics, Chemistry, Biology, History, Geography, Polity, Indian Economy, Environment, Static General Knowledge, GK- Current Affairs, Artificial Intelligence, MS Office Applications, Terms & Abbreviations, Keyboard Shortcuts, Evolution of Indian Banking (Banking & Financial Awareness), Emerging Tech Trends
  3. Engineering Mathematics: Set Theory, Relations, Functions, Graph Theory, Group Theory, Propositional and Predicate Logic, Linear Algebra, Calculus, Probability, Statistics, Signal Space and Optimum Detection, Probability, Statistics
  4. Digital Logic: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation, Floating Point Rep, Number Systems and Codes, Registers and Counters, Boolean Algebra and Logic Gates, Microprocessors and Microcontrollers, Logic Families and CMOS Logic, Microprocessors, Logic Gates and Boolean Algebra, Minimization of Boolean Functions, Timing, Hazards and Testing, Logic Families, Combinational Logic Design, Arithmetic Circuits, Waveform Generators and Timer Circuits, Semiconductor Memories and Programmable Logic Devices, Combinational Logic Circuits, Latches and Flip-Flops, Finite State Machines, Sequential Circuits and State Machines, Minimization of Boolean Functions, Arithmetic Circuits, Latches and Flip-Flops, Number Systems and Codes, Registers and Counters
  5. Computer Organisation & Architecture: Basics of COA, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Control Unit Design, Programming the Basic Computer, Register Transfer and Microoperations, Semiconductor Memories and Programmable Logic, Processor Organization and Instructions, Memory Hierarchy and Input/Output, Registers and Counters
  6. Programming & Data Structures: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, HTML Basics, OOPS with C++, Java, Object Oriented Technology
  7. Databases: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, SQL, Relational Calculus, Transaction Management, Concurrency Control, Database Recovery, Database Security & Authorization
  8. Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos
  9. 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
  10. 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
  11. Operating System: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, Disc Scheduling, File Management, Security, Windows OS, Distributed Systems, Unix OS, Linux OS
  12. Computer Networks: Introduction to CN, 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, Data Communication, Website, Browser & Services, Web Design & Development, Network Security, Cyber Threats and Malware Attacks, Cyber Safety and Security
  13. Full Length Mock Tests:
  14. Sectional Tests:
  15. Paper 2 - Full-length Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video demonstrates the step-by-step construction of an LR(0) parsing automaton for a specific context-free grammar. The instructor begins by defining the grammar rules: S -> Aa / bAc / dc / bda and A -> d. He then augments the grammar by introducing a new start symbol S' -> S to handle the end of input string. The core of the lecture involves calculating the closure of the initial state and systematically deriving subsequent states (I0 through I10) by identifying transitions on non-terminals and terminals. The visual content features a whiteboard where the instructor writes out the augmented productions, constructs the initial state I0, and draws the state transition diagram, labeling each state and the symbols that trigger transitions between them.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The lecture begins with the instructor presenting the grammar rules on the whiteboard: S -> Aa / bAc / dc / bda and A -> d. He introduces the concept of grammar augmentation by adding a new start symbol S' -> S. He then lists the augmented productions, writing them out as S' -> S, $, S -> Aa, $, S -> bAc, $, S -> dc, $, S -> bda, $, and A -> d, a. The instructor proceeds to construct the initial state, labeled I0. He writes the items for I0, starting with S' -> .S, $, and then adds the closure items: S -> .Aa, $, S -> .bAc, $, S -> .dc, $, S -> .bda, $, and A -> .d, a. This establishes the foundation for the state machine construction.

  2. 2:00 – 5:00 02:00-05:00

    The instructor begins drawing the state transitions originating from I0. He identifies a transition on 'S' leading to state I1, which contains the item S' -> S., $. Next, he draws a transition on 'A' from I0 to state I2, containing S -> A.a, $. He then explores transitions on terminals 'b' and 'd'. A transition on 'b' leads to state I3, which includes items S -> b.Ac, $, S -> b.da, $, and the closure item A -> d.c. A transition on 'd' leads to state I4, containing S -> d.c, $ and A -> d., a. The instructor then expands from state I2, drawing a transition on 'a' to state I5, which contains the completed item S -> Aa., $. He further expands from state I3, drawing transitions on 'A' to state I6 (S -> b.A.c, $) and on 'd' to state I7 (S -> bd.a, $, A -> d., c).

  3. 5:00 – 8:18 05:00-08:18

    In the final segment, the instructor completes the state transition diagram. He draws a transition from state I4 on the symbol 'c' leading to state I8, which contains the item S -> dc., $. From state I6, he draws a transition on 'c' leading to state I9, containing S -> bAc., $. Finally, from state I7, he draws a transition on 'a' leading to state I10, which contains the item S -> bda., $. The video concludes with the full LR(0) automaton diagram visible on the whiteboard, showing the interconnected states I0 through I10 and the specific symbols that trigger each transition. The instructor has successfully mapped out the entire parsing structure for the given grammar.

The video provides a comprehensive walkthrough of building an LR(0) parsing automaton. It starts with the fundamental step of grammar augmentation, ensuring the start symbol is unique. The instructor then methodically applies the closure and goto operations to generate states I0 through I10. Each state is carefully derived based on the items present and the symbols following the dot. The final diagram represents the complete state machine, which is essential for constructing the parsing table. This progression from raw grammar rules to a structured automaton illustrates the core algorithmic process in compiler design for bottom-up parsing.

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