Placement preparation
Aptitude, coding, verbal ability, and reasoning, broken down with worked examples for Indian engineering placements. 539 articles.
Squaring Numbers 40 to 60: Aptitude Shortcuts for Placement Tests
Three mental math methods to square any number between 40 and 60 in under 5 seconds, with worked examples verified for campus placement aptitude tests.
Stick Game Problem: Solution and Code in Python, C, Java
Stick game on an n x m grid: derive why min(n, m) decides the winner, verify all three sample inputs, and get clean code in Python, C, and Java.
Subject-Verb Agreement: Sentence Correction Guide
Eight subject-verb agreement rules tested in AMCAT, TCS NQT, and placement verbal sections. Worked examples, common error traps, and practice questions.
Subset Sum Problem: Dynamic Programming, Code, and Complexity
Solve the subset sum problem using dynamic programming: step-by-step algorithm, tabulation walkthrough, Python and Java code, and time/space complexity.
Sum of Elements in Zigzag Sequence of a Matrix
Matrix zigzag traversal explained: scan each anti-diagonal in alternating directions, why the sum equals the total matrix sum, with code in Python, C++, and Java.
Syllogisms in Aptitude Tests: 3 Methods, 6 Rules, Solved Examples
Three methods and six rules cover every syllogism question in campus placement tests. Venn diagrams, verbal deduction, and tick-and-cross, with five worked examples.
10 Technical Interview and Aptitude Questions: Set 4
Ten solved questions on C pointer arithmetic, double pointers, scanf bugs, linked-list traversal, binary search, SQL filtering, first normal form, and FCFS scheduling.
10 C Programming Aptitude Questions with Answers
Ten C programming aptitude questions covering array out-of-bounds, pointer declarations, operator evaluation, and linkage types, with worked answers.
Python Ternary Operator: One-Line if-else with Examples
Write Python if-else logic in one line using the conditional expression. Syntax, five patterns, placement test output questions, and when to avoid nesting.
Partnership Problems: Types, Profit Sharing, and Solved Examples
Partnership aptitude problems: capital ratio, capital-time product, working partner salary. Five verified examples for TCS NQT, AMCAT, and campus placement tests.
6 Things to Check Before Accepting a Job Offer
Before you sign, evaluate these six factors: CTC breakdown, company stability, growth path, commute cost, role fit, and work culture signals.
Divisibility Rules 2 to 13: Quick Division Tricks for Aptitude
Master divisibility rules for 2 through 13 and quick fraction approximation to solve aptitude division problems in under 10 seconds, no calculator needed.
5 Things to Never Say in a Job Interview (and What to Say Instead)
Five phrases that signal unpreparedness in placement interviews, why each one backfires, and what to say instead for every situation.
Treasure and Cities Problem Using Dynamic Programming
Solve the Treasure and Cities problem with a verified DP recurrence. Includes step-by-step trace on the canonical example, Python code, and O(n²) complexity analysis.
Triangle Fundamentals: Types, Properties, and Formulas
Master triangle types, properties, and formulas for placement aptitude tests. Covers scalene, isosceles, equilateral, Heron's formula, and five worked examples.
Tuples in Python: Definition, Methods, and Code Examples
Master Python tuples with clear examples covering creation, indexing, slicing, immutability, and the 2 built-in methods tested in placement drives.
Cubes, Games, and Tournaments: Aptitude Formulas Derived
Learn the painted-cube, cube-cutting, knockout, and round-robin formulas for placement aptitude tests, all re-derived from scratch with verified worked examples.
Arithmetic Progression Formulas and Solved Examples
Master arithmetic progression: nth term formula, sum formula, and five worked examples drawn from placement aptitude test question types.
AI and ML Interview Questions: What Freshers Need to Know
Where AI and ML appear in TCS Digital, Infosys DSE, and Cognizant GenC Pro interviews, the 10 questions freshers get asked, and a 4-week prep plan.
Factorials: Permutations, Trailing Zeros, and Placement Examples
Factorial problems appear in every campus aptitude test. This guide covers trailing zeros, permutations, combinations, and solved placement examples.
Divisibility Rules for Aptitude Tests: 2026 Guide
Master divisibility rules for 2 through 16. Covers the alternating-sum test for 11, the block method for 7 and 13, and verified placement aptitude worked examples.
Factors and Divisors: Formulas, Examples, and Exam Practice
Master factor and divisor formulas for placement aptitude tests. Covers prime factorisation, counting divisors, even/odd splits, sum, and product.
Harmonic Progression (HP): Formula, Mean, and Placement Exam Examples
HP is a sequence whose reciprocals form an AP. Covers the nth-term formula, harmonic mean, average-speed application, and two fully worked placement-exam examples.
Speed, Distance and Time: Placement Aptitude Test Guide
Master speed-distance-time, relative motion, and average speed for TCS NQT and AMCAT. Verified worked examples and placement-specific shortcuts included.
Python Variables: Declare, Assign and Redeclare
Python creates a variable the moment you assign a value to it. Covers naming rules, four assignment patterns, redeclaration across types, scope, and PEP 8 conventions.
See-Saw Method for Weighted Averages in Placement Tests
Master the see-saw shortcut for weighted average problems in TCS NQT, AMCAT, and eLitmus. Four worked examples across three question types.
Python Strings: Indexing, Slicing, and Key Methods
Python strings are immutable sequences of Unicode characters. Learn indexing, slicing, split, join, replace, format(), and f-strings with working code examples.
Python Indentation: What It Is and Why It Matters
Python uses indentation instead of curly braces to define code blocks. Learn PEP 8's four-space rule, common IndentationErrors, and how to fix them.
Python `while` Loop: Syntax, Use Cases, and Common Patterns
Learn how Python's while loop works, when to use it over a for loop, and how break, continue, and the else clause shape its behavior.
Best Careers for Mechanical Engineers After Graduation in India
From core manufacturing to robotics, here's where mechanical engineering degrees pay and hire in India in 2026.
Why Python Is So Popular in 2026 and Is It Easy to Learn?
Python has topped developer rankings four years running. Here is why it dominates in 2026, and how Indian students can get placement-ready fast.
Word Break Problem: Dynamic Programming Solution with Code
The word break problem asks if a string can be split into dictionary words. DP table approach, Python and C++ code, and full complexity analysis.
6 Skills You Can Master Online Before Placement Season
English fluency, aptitude shortcuts, coding basics: six skills every placement process tests, all learnable online in weeks, not semesters.
AMCAT Automata Question Bank Set 1: Practice and Solutions
Two AMCAT Automata practice problems solved step by step: Cell Competition Simulation and Maze Pathfinding, with verified C++ code and placement prep patterns.
AMCAT Previous Papers: Test Pattern and Most Repeated Questions
AMCAT test pattern, section-wise structure, and the question types that appear most often across Quant, Verbal, Logical Reasoning, and Automata. Prep efficiently.
Array Programs in C, C++ and Java: Most Asked Questions
Master the 6 core array patterns tested in AMCAT, TCS NQT, and company placement tests. Solutions in C, C++ and Java with time complexity.
Best Books for Campus Placement Preparation
A section-by-section guide to the books Indian engineering students use for quantitative aptitude, verbal ability, and logical reasoning in campus placement tests.
Placement Prep Platforms: IndiaBix vs Lofoya vs GeeksforGeeks
IndiaBix, Lofoya, and GeeksforGeeks each cover a different slice of placement prep. Here is what each does well and where it falls short.
Boats and Streams: Aptitude Questions with Verified Solutions
Boats and streams formulas derived step by step, with four verified examples covering upstream, downstream, and round-trip problems for placement tests.
Wildcard String Matching: Recursive and DP Solutions
Wildcard matching with ? and * using memoised recursion and a full DP table. Worked trace of pattern 'g*ks' matching 'geeks', plus time and space complexity.
Vowel or Consonant Check: Programs in C, C++, Python, Java
Programs in C, C++, Python, and Java that check if a character is a vowel, consonant, or neither, with algorithm traces and full edge-case coverage.
Prime Number Program in C, C++ and Java
Three implementations to check if a number is prime in C, C++, and Java. Covers the for-loop, function-based, recursive approach, and sqrt optimisation.
Check Whether a Number is Palindrome or Not
How to check whether a number is palindrome or not, with iterative and recursive programs in Python, C, and Java, plus complexity analysis.
Critical Reasoning Terminology: 10 Key Terms for Placement Tests
Critical reasoning sections in TCS NQT and AMCAT test 10 core terms. Master argument, premise, assumption, inference, and fallacy with worked examples.
Decimal to Binary in Python: 3 Methods Explained
Convert decimal numbers to binary in Python using bin(), format(), and a custom loop. Verified step-by-step algorithm, edge cases, and placement test tips.
Diamond Number Patterns in C, C++, Python, and Java
Three diamond number patterns: repeated-digit, star-separated, and consecutive, with working C, C++, Python, and Java code, loop traces, and placement-test context.
Diamond Pattern Using Stars: C, Python and Java
Four diamond star patterns (solid, hollow, half, palindromic) with loop traces, space formulas, and C, Python, and Java code for n=5.
Direct and Indirect Speech: Rules, Examples and Usage
Master tense back-shift rules, pronoun changes, and adverb shifts for reported speech, with 7 worked examples for verbal ability in placement tests.
Get the AI Career Roadmap 2026 (free PDF)
2026 placement-drive AI patterns, project picks recruiters credit, and a prep timeline that fits beside aptitude and coding work.
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