Printing Pattern
Duration: 5 min
This video lesson is available to enrolled students.
Inside: a video lesson and guided study material.
Module outline
- Quantitative Aptitude: Number System, Divisibility Rules, HCF LCM, Percentage, Ratio and Proportion (Ratios), Average, Profit and Loss, Simple Interest and Compound Interest, Mixture and Alligation, Partnership, Age Problems, Time and Work, Pipe and Cistern, Speed Time and Distance, Algebra, Arithmetic, Data Interpretation, Sequence and Series (Series), Logarithm, Powers and Exponents (Surds and Indices), Permutation and Combination, Probability, Speed Mathematics and Basic Mathematics, Trigonometry
- Logical Reasoning: Coding Decoding, Blood Relations, Directions (Direction Test), Ranking, Order and Sequence, Seating Arrangements, Puzzle Solving (Puzzles), Data Arrangement, Syllogisms, Inequality, Data Sufficiency, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Series (Number and Letter Series) (Numerical Relations and Reasoning), Venn Diagram, Logical Sequence Of Words, Calendar, Clock, Cubes & Dices, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning)
- Verbal Ability: Noun, Pronoun, Adjectives, Verb, Adverb, Tenses, Subject Verb Agreement (Verb Noun Agreement), Articles, Preposition, Conjunction, Modals, Determiner, Vocabulary, 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), Active Passive Voice (Voice), Direct and Indirect Speech, Sentence Construction
- Data Structures (Domain Test): Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
- Algorithms (Domain Test):
- OOPs (Domain Test): Object Oriented Programming (OOPS)
- DBMS (Domain Test): 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
- SQL (Domain Test): SQL
- Operating Systems (Domain Test): 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
- Computer Networks (Domain Test): 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, Cloud Computing and IoT, Cyber and Info Security
- Coding: Coding Questions by Yash Sir, C Programming by Yash Sir, Programming in C++, Java, Python for Placements by Yash Sir
- Written English Test: English Writing Ability
- Psychometric Test: Behavioral Assessment (Behavioral Competency Profiling) (Psychometric Test)
AI summary & chapters
AI Summary
An AI-generated summary of this video lecture.
This video is a programming tutorial from Knowledge Gate, presented by an instructor named Yash Jain Sir, who is identified as a placement expert. The lesson focuses on solving a pattern printing problem, Q16, which requires writing a C program to print a specific numerical pattern based on an input integer N. The problem is presented on a slide with an example for N=4, showing a symmetric pattern of numbers. The instructor then displays a C code solution on a dark-themed code editor, which uses nested for loops. The first loop runs from 1 to N, printing the number i, i times, followed by a newline. The second loop runs from N down to 1, printing the number i, i times, followed by a newline. The instructor explains the logic by walking through the code and using a chalkboard to simulate the execution for N=3, writing out the values of the loop variables i and j to demonstrate how the pattern is generated step-by-step.
Chapters
0:00 – 2:00 00:00-02:00
The video begins with the 'KNOX MEEHEGATF' logo, which is a stylized version of the 'Knowledge Gate' brand. It then transitions to a slide that introduces the problem, Q16: 'Write a program to print below pattern.' The slide details the input format as an integer N, and the output format as a specific pattern. An example is provided for N=4, showing a symmetric pattern of numbers. The instructor, Yash Jain Sir, is visible in a small window, and the video is from the 'Knowledge Gate' channel, which offers courses for GATE, UGC NET, and placement preparation. The instructor begins to explain the problem, setting the stage for the coding solution.
2:00 – 4:49 02:00-04:49
The instructor displays the C code solution on a code editor. The code includes the standard header and main function. It uses three variables: n, i, and j. The first loop, for (i=1; i<=n; i++), is explained as printing the number i, i times, followed by a newline. The second loop, for (i=n; i>=1; i--), is explained as printing the number i, i times, followed by a newline. The instructor uses a chalkboard to simulate the code's execution for N=3, writing out the values of i and j for each iteration to demonstrate how the pattern is built. The code is shown to be correct, and the instructor concludes the explanation of the logic.
The video presents a complete, step-by-step tutorial on solving a common programming interview question. It starts by clearly defining the problem of printing a symmetric number pattern. The core of the lesson is the explanation of the algorithm, which involves two nested loops: one for the upper half of the pattern and one for the lower half. The instructor effectively uses a combination of on-screen code and a chalkboard to break down the logic, making the solution accessible. The final synthesis is that the pattern is generated by iterating from 1 to N and then from N to 1, printing the current number a number of times equal to its value, which is a classic example of using nested loops for pattern printing.

