Placement preparation
Aptitude, coding, verbal ability, and reasoning, broken down with worked examples for Indian engineering placements. 539 articles.
eLitmus pH Test Syllabus and Test Pattern 2026
The eLitmus pH test has 3 sections, 60 questions and 120 minutes. Full section-wise syllabus, negative marking formula and topic priorities for 2026.
eLitmus Verbal Questions: Types, Sample Papers and Prep Tips
Practice eLitmus Verbal Ability with sample questions on grammar, para-jumbles, sentence completion, and reading comprehension. Prep strategy included.
Encapsulation in Python: Access Modifiers and Name Mangling
Python encapsulation explained: private, protected, public members, name mangling, and getter/setter methods with code examples.
Fibonacci Series in Python: Loop, Recursion, Memoization
Three Python programs to print the Fibonacci series: iterative, recursive, and memoized. Complexity analysis for placement coding rounds.
nPr Formula: Seating Arrangements for Campus Aptitude Tests
P(n,r) formula derived from first principles, the theater seating example worked step by step, and decision rules for campus placement aptitude tests.
Find Factors of a Number in C, C++, Java and Python
Two approaches to find all factors of a number in C, C++, Java, and Python: O(n) brute-force and O(√n) optimised, with complexity comparison and placement context.
Min and Max Element in Each Matrix Column
Column-wise minimum and maximum in a 2D matrix: algorithm, worked example, and complete programs in C, Java, and Python with complexity analysis.
Count Occurrences of Digit 3 from 0 to N: Formula and Code
Given N, count how many times digit 3 appears in all integers from 0 to N. Covers the O(log N) positional formula and C, Java, Python code.
Noddy's Largest Plot: Histogram Rectangle in Python
Solve the Noddy Toyland land puzzle with a monotonic stack in O(n). Step-by-step trace for [2, 1, 5, 6, 2, 3], Python code, and complexity analysis.
Integers with Exactly 9 Divisors in a Range
A positive integer has exactly 9 divisors only in two forms: p^8 or p^2 × q^2. This guide proves why, then shows a sieve-based Python solution with verified examples.
GCD of Two Numbers in Python: 4 Methods Explained
Four methods to find GCD in Python: while loop, recursion, Euclidean algorithm, and math.gcd. Includes code, dry runs, and placement round tips.
HCF and LCM: Methods, Tricks, and Verified Placement Examples
Prime factorization, Euclidean division, and the product rule for HCF and LCM: six verified examples, including one corrected from a widely circulated wrong answer.
Why Should We Hire You? Sample Answers for Freshers
Four sample answers to 'Why should we hire you?' for TCS Ninja, fintech, mech-to-IT, and AI-track freshers: each with the reasoning behind it.
Check Odd or Even Without Modulus: 3 Python Methods
Three Python approaches to check odd or even without the modulus operator: bitwise AND, integer division, and flag toggling, with runnable code.
How to Prepare for Campus Placement Aptitude Tests (8-Week Plan)
Master campus placement aptitude tests with an 8-week study timeline, topic-priority matrix by company tier, and proven retention strategies for Quant, LR, and Verbal.
How to Solve Blood Relation Questions: 7 Worked Examples
Step-by-step family-tree method, 7 re-verified examples covering coded notation, generation gaps, and the cousin-not-brother trap for placement aptitude tests.
Introduction to C Programming: Basics and Fundamentals
C programming fundamentals for engineering students: Hello World breakdown, variables, data types, the compilation pipeline, and two worked programs.
Leap Year Program in C, C++ and Java
Leap year logic in C, C++, and Java with three implementation styles: basic conditional, function-based, and stdlib. Code, edge cases, and placement context.
Python Tutorial for Beginners: Hello World to Functions
Start Python in 2026: write Hello World, learn variables, types, control flow, and functions, then build FizzBuzz. Covers placement DSA and AI prep.
Clock Problems for Aptitude Tests: Formula and Worked Examples
Derive the clock angle formula from first principles, learn why hands coincide exactly 11 times in 12 hours, and work through six placement-test problems.
Mastering Simple and Compound Interest: Formulas and Examples
Solve SI and CI questions for placement aptitude tests using the right formula for each type. Covers compounding variants, five question patterns, and verified examples.
Syllogisms: Step-by-Step Rules and 8 Worked Examples
Master the three syllogism types, five deduction rules, and Venn diagram method with eight worked examples from campus placement aptitude tests.
Remainder Concept: Methods and Examples for Aptitude Tests
Solve remainder problems in aptitude rounds: product rule, negative remainders, Euler's theorem, and fully verified worked examples for TCS NQT and AMCAT.
Pattern Printing in C: 9 Interview Programs Explained
Nine pattern printing programs for C technical interviews: star, number, and letter types with verified code, output traces, and complexity notes.
Most Commonly Asked Java Interview Questions, Set 2
ArrayList vs Vector, runtime polymorphism, multiple inheritance via interfaces, servlet lifecycle, and finalize(). Core Java interview Set 2 topics for freshers.
Skills Required to Get Placed in a Core Company
Branch-wise breakdown of technical, aptitude, and communication skills engineering students need for core company placements: Mechanical, ECE, Civil, and CS/IT.
Prime Number Program in Python: Primes in a Range
Three Python algorithms to check and find prime numbers in a range: trial division, 6k±1 optimisation, and Sieve of Eratosthenes, with manual traces.
Integers with Exactly 9 Divisors: C++, Java, Python
C++, Java, and Python programs to count integers from 1 to N with exactly 9 divisors. Two-case sieve algorithm, O(sqrt(N)) complexity, verified sample I/O.
Program to Print Pascal's Triangle in C, Python, and Java
Step-by-step guide to printing Pascal's triangle in C, Python, and Java, with row construction logic, O(n²) complexity, and placement interview context.
Reverse a String in C, C++, Java and Python
String reversal in C, C++, Java and Python: in-place two-pointer swap, std::reverse, StringBuilder.reverse, and Python slice notation, with complexity analysis.
Python 2 vs Python 3: Which Should You Learn in 2026?
Python 2 reached its end-of-life in January 2020. The five key differences, why every placement platform runs Python 3, and how to verify your setup.
Rearrange Positive and Negative Numbers in an Array
Three approaches to rearranging positive and negative numbers in an array: partition, order-preserving, and alternating, with C++ and Python code.
Two Shortcuts to Find Any Cube from 1 to 100 in 10 Seconds
Two binomial shortcuts let you compute any cube from 1 to 100 in under 10 seconds. Worked examples, carry chain, and a reference table for placement aptitude.
Solve Any Time and Work Problem in Under 30 Seconds
The LCM setup, four question-type mnemonics, and three error traps that let you clear Time and Work problems in campus placement tests in under 30 seconds.
Sort Array by Order Defined by Another Array
Two methods to sort array A by the sequence in array B: binary search in O(n log n) and hashing in O(n + m). Worked examples plus code in Python and Java.
Technical Interview Tips for Freshers: What Works in 2026
Practical strategies for technical interview rounds: coding practice, project depth, communication, and company research. Updated 2026.
High-Paying Jobs After MBA and MCA in India: 2026 Guide
MBA and MCA graduates enter different job markets in India. Here's what each track pays, which roles grow fastest, and how AI skills shift the salary ceiling in 2026.
Two-Player Coin Game Using Dynamic Programming
Greedy fails the two-player coin game. Learn the parity-based optimal strategy, the DP recurrence, and working Python code: placement-interview ready.
Repo Rate, Reverse Repo, CRR and SLR Explained
Four RBI rates appear in every BFSI placement aptitude test: Repo Rate, Reverse Repo, CRR, and SLR. Here's what each does, with current values.
Time and Work Formulas, Shortcuts, and Tricks
Formulas, shortcuts, and tricks for Time and Work aptitude problems in campus placement tests. Covers LCM method, wages, man-days, and pipes and cisterns.
Verbal Analogy Questions: Types, Strategies, Worked Examples
Verbal analogy questions appear in TCS NQT, AMCAT, and placement aptitude rounds. Learn the twelve relationship types, four strategies, and six worked examples.
Evaluation Order of Function Parameters in C
The C standard leaves function argument evaluation order unspecified. Learn what C11 says, how compilers differ, and how to write portable C code.
Why Engineers Choose Banking Careers in India
Engineering graduates crack IBPS PO and SBI PO faster than average, and public-sector bank salaries often match Tier-2 IT packages. Here is why it makes sense.
31 Most-Asked C Programming Interview Questions (with Code)
The 31 C programs that appear most in product-company and service-company technical rounds, with verified code and recruiter-level explanations.
Alligation and Mixture: Speed Tricks for Aptitude Tests
Six speed tricks for alligation problems: recognise the pattern in 30 seconds, dodge the common time-traps, and set your test-day attack order.
AMCAT Syllabus and Exam Pattern 2026: All Sections Explained
AMCAT 2026: three compulsory aptitude sections, a personality inventory, specialist sub-tests (SVAR, Automata), domain electives, and how scores work.
AMCAT vs eLitmus pH Test: Format, Sections, Scoring and Fees
AMCAT vs eLitmus pH test: format, sections, negative marking, score validity and fees compared side by side for freshers deciding which to take.
Arranging Flower Sticks in a Bouquet: Sorting Problem
Solve the flower sticks bouquet problem with Python, C++, and Java. Covers split-sort algorithm, step-by-step walkthrough, complexity analysis, and edge cases.
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.
Download the free PDF