Placement prep + AI for engineers
Evidence-led articles on aptitude, coding, company-specific test patterns, and AI roadmaps for Indian engineering students. 1036 articles published so far. India-context throughout.
Abstraction in Python: Abstract Classes and the ABC Module
Use Python's ABC module to create abstract classes that enforce method contracts. Includes working code, a common error walkthrough, and placement-round tips.
Accenture Recruitment Pattern, Key Topics and Company Overview
Complete guide to Accenture's 2026 recruitment: five stages, two salary tracks, and the topic list for each round. Covers ASE and Advanced ASE offers.
Program to Add Two Fractions: C, C++ and Java with GCD
C, C++ and Java programs to add two fractions and display the sum in reduced form. Algorithm, Euclidean GCD, integer overflow handling, and verified examples.
Add Two Fractions and Display Simplest Form: Python Guide
Python program to add two fractions and reduce to simplest form using math.gcd. Algorithm, code, three verified examples, and edge cases for placement coding rounds.
Amazon Recruitment Process 2026: Rounds, Pattern & Prep Guide
Amazon campus hiring covers 3–4 rounds: an online test, two technical interviews, and behavioral questions tied to Leadership Principles.
AMCAT Fee Structure 2026: What You Pay, What's Included
AMCAT registration fee is ₹1,100 plus 18% GST in 2026, totalling ₹1,298 per sitting. Covers base fee, optional add-ons, payment modes, and the no-refund policy.
AMCAT Test Pattern 2026: Sections, Timing, and Scoring
AMCAT's modular test pattern for 2026: four compulsory sections, domain electives, specialist sub-tests, and how the adaptive scoring system works.
Amdocs Off-Campus Drive 2026: Eligibility and Selection Process
Amdocs recruits freshers via AMCAT online test, technical, and HR rounds. Full 2026 eligibility criteria, test pattern, and prep strategy.
Arithmetic Operators in Python: All 7 Explained with Examples
Python's 7 arithmetic operators explained with code examples, operator precedence rules, and the edge cases most placement-exam candidates miss.
Convert Array to Zigzag Pattern: O(n) Algorithm Explained
The O(n) swap algorithm converts any integer array into zigzag fashion without sorting. Worked traces, Python code, and three common implementation errors.
AMCAT Exam Benefits: What It Opens for Engineers in 2026
AMCAT exam benefits in 2026: which employers use your score, how Cognizant's GenC shortlist works, and how AMCAT compares to eLitmus and CoCubes.
5 C Programs Asked in Placement Tests: Factorial, Even/Odd, Swap
Factorial, even/odd check, and three swap methods: five C programs that appear across TCS, Infosys, and aptitude platforms. Annotated code with complexity notes.
C Programs for You: Set 3, Pointers, Recursion, and Linked Lists
Eight C programs with full solutions and output traces covering pointers, recursion, array algorithms, and linked-list operations.
Calculating Percentage Change: Formula, Examples, and Exam Shortcuts
The percentage change formula with verified worked examples, the denominator trap, and how these calculations appear in placement aptitude tests.
Capgemini 2026: Company Overview and Fresher Recruitment Pattern
Capgemini's four online test sections, two offer tracks (₹4–7.5 LPA), and company overview. The 2026 pattern, selection stages, and AI-ready hiring shift for freshers.
Check If Two Strings Are Anagrams: C, C++, Java, Python
Count array and sort-then-compare: two anagram check approaches in C, C++, Java and Python with O(n) and O(n log n) complexity analysis.
Check if a Number is Automorphic | C, Python, Java Code
A number is automorphic if its square ends in the same digits: 5² = 25, 76² = 5776. Algorithm, verified examples, and programs in C, Python, and Java.
Harshad Number (Niven Number): Algorithm, Programs in Python, Java, C
Learn what a Harshad number (Niven number) is, see worked examples, and get programs in Python, Java, and C to check any integer.
Check Whether a Character is an Alphabet: C, C++, Python, Java
Programs in C, C++, Python, and Java to check if a character is an alphabet, covering ASCII range logic, isalpha(), Unicode edge cases, and placement test traps.
Circle Geometry: Key Properties and Formulas for Placements
Master the circle geometry theorems that placement aptitude tests include. Covers chords, tangents, inscribed angles, and cyclic quadrilaterals with worked examples.
Classes and Objects in Python: Syntax, Examples, and OOP Basics
Learn how Python classes and objects work: class syntax, __init__, instance vs class attributes, and how OOP questions appear in placement rounds.
CoCubes Pre-Assess 2026: Registration, Test Pattern, and Prep
CoCubes Pre-Assess is the Aon-backed employability test for engineering freshers. Full 2026 guide: registration routes, 3-section test format, and preparation strategy.
Cognizant Recruitment Process 2026: Step-by-Step Guide
Cognizant's 2026 fresher recruitment: eligibility, GenC and GenC Elevate tracks, test format, interview rounds, and application process.
How to Organise Placement Prep by Target Company in 2026
A practical guide to company-specific placement prep for engineering students: test pattern, interview, and off-campus tracks, with a 4-week TCS NQT worked example.
How to Read Complicated Declarations in C
The right-left rule decodes any C declaration in a predictable sequence. Step-by-step examples for pointers, arrays, and function pointers, with cdecl cross-checks.
Constructors in Python: __init__, Default, and Parameterised
How Python constructors work: __init__ syntax, default vs parameterised patterns, the mutable-default-argument pitfall, and placement assessment context.
Binary to Octal Conversion in C, C++, Java and Python
Convert binary to octal using the group-of-3 method. C, C++, Java, and Python code with worked examples, edge-case handling, and O(n) complexity analysis.
Decimal to Binary Conversion in C, C++, Java, and Python
Four implementations to convert decimal to binary in C, C++, Java, and Python, with the algorithm, worked examples, and complexity analysis.
Octal to Binary Conversion in C, C++, Java and Python
Step-by-step octal to binary conversion with two methods, worked examples, and ready-to-run code in C, C++, Java and Python.
Decimal to Octal Conversion in C, C++, Java, and Python
Step-by-step decimal to octal conversion in C, C++, Java, and Python: division algorithm, built-in functions, and where this appears in placement coding tests.
Binary to Decimal Conversion: Algorithm, Code, and Edge Cases
Positional weighting, three verified worked examples, and C, Python, Java implementations, including built-in functions and signed-number edge cases.
Count Number of Digits in an Integer: 3 Methods
Three approaches to count digits in an integer: loop, recursion, and O(1) logarithm. Compare time complexity, edge cases, and what placement tests expect.
N-Digit Numbers with Non-Decreasing Digits: Two Approaches
Count n-digit sequences with non-decreasing digits using C(n+9,9). Stars-and-bars proof, DP solution, Python code, and worked examples for n=1 through n=5.
Crack CAT in 54 Hours: Section-by-Section Prep Plan
A 54-hour CAT prep plan across three sections: Quantitative Ability, DILR, and VARC. Covers realistic percentile targets, topic priorities, and mock test strategy.
Crack Wipro's Recruitment Process 2026: Round-by-Round Prep Plan
Round-by-round preparation for Wipro's 2026 NLTH, technical interview, and HR round, covering eligibility, section-wise syllabus, and the CoE-AI track.
Cryptarithmetic Practice Set for eLitmus and Infosys: 2026 Edition
Six verified cryptarithmetic problems with step-by-step solutions, covering 2-digit warmups through SEND+MORE=MONEY, for the Infosys aptitude test and eLitmus pH Test.
Infosys 2026: History, Services, and Fresher Hiring Guide
Founded in 1981, Infosys is India's second-largest IT firm: full history, services from Finacle to AI, and three fresher hiring tracks from ₹3.6 to ₹9.5 LPA in 2026.
Conceptual C MCQs for Placement Interviews
Five essential C programming MCQs on pointers, static variables, struct sizing, and token counting, with step-by-step traces for placement tests.
Deloitte Off-Campus Drive: 2026 Process and Eligibility Guide
Deloitte's off-campus drive runs three rounds: aptitude test, group discussion, and technical interview. Eligibility, documents, and prep plan for B.Tech freshers.
Determiners in Sentence Correction: Complete Grammar Guide
Articles, demonstratives, quantifiers, and possessives tested in every placement verbal section. Rules, 10 worked examples, and error patterns.
Diamond Pattern in Python: Two Programs Explained
Two Python programs to print full diamond and half-diamond star patterns, with the loop logic and space-count formula explained for placement prep.
Python Dictionaries: Operations, Methods, and Examples
Learn how Python dictionaries store key-value pairs: how to create, access, modify, delete, and iterate over them. Includes dict comprehensions and placement examples.
Didn't Get Placed on Campus? Your Off-Campus Job Plan for 2026
Off-campus hiring runs year-round with thousands of fresher roles campus drives miss. Here's how to find them, apply effectively, and interview well.
range vs xrange in Python: What Changed in Python 3
Python 2 had both range() and xrange(). Python 3 removed xrange() and made range() lazy. This guide covers memory behaviour, indexing gotchas, and when to use list().
Getting Placed Without Campus Drives: 6 Off-Campus Channels That Work
Six ways to get hired without a campus drive: off-campus openings, job portals, referrals, walk-ins, direct applications, and a working project that backs your resume.
Count Vowels in a Character Array Using Pointers in C
Step-by-step C program to count vowels in a character array using pointer arithmetic. Algorithm, traced output, case-insensitive variant, and complexity analysis.
Find All Missing Elements of a Range: 3 Approaches Ranked
Three approaches to find all missing elements of a range: from O(n) hashing to in-place marking, with complexity tables and placement interview context.
Find All Nodes at K Distance from Root in a Binary Tree
Two methods to print every node exactly k edges from the root: recursive reduction and BFS level-tracking, with complexity analysis and placement context.
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