Connect with fellow learners in the PlacePrep Discord communityㆍ Join now →

R's PlacePrep

Popular drives

TCSNQT (National Qualifier Test)InfosysIRT (InfyTQ Recruitment Test)AccentureCognitive & Technical Assessment

Also hiring

WiproNLTH (National Level Talent Hunt)CognizantGenC Assessment CapgeminiGame-Based Assessment

Browse all 14 companies TCS NQT 2026

Real placement papers from the drives you are actually sitting for

14 companies · 48 papersStart practising

Select your branch

Computer Science & EngineeringBEU previous year papers and solutions Mechanical EngineeringBEU previous year papers and solutions Electrical & Electronics EngineeringBEU previous year papers and solutions

More branches

Civil EngineeringBEU previous year papers and solutions Aeronautical EngineeringBEU previous year papers and solutions

All branches Computer Science

Previous year questions

University papers, sorted by subject and year with worked solutions

BEU Solved PapersOpen the archive

Core CS

Data Structures & AlgorithmsComplexity analysis up to graphs and DP.Operating SystemsProcesses, scheduling, memory and concurrency.Database Management SystemsRelational modelling, transactions and indexing.Computer NetworksFrom wires and radio waves up to the web.

Learn & scale

AI Inference EngineeringQuantization, batching and KV caching in production.System DesignScalable systems from first principles.Context EngineeringDesigning the context that LLMs actually reason over.Docker & KubernetesContainers and orchestration, explained.

All 15 courses Authors

Structured courses that start at zero and end somewhere useful

15 courses · free foreverBrowse courses

Companies PYQ Learn

Data Structures & Algorithms

Python Essentials1

Arrays & Strings4

Searching & Sorting14

Linear Search
Binary Search
Jump Search
Interpolation Search
Exponential & Fibonacci Search
Bubble Sort
Selection Sort
Insertion Sort
Merge Sort
Quick Sort
Heap Sort
Counting Sort
Radix Sort
Searching & Sorting Cheat Sheet

String Algorithms4

Stacks & Queues2

Heaps & Priority Queues1

Greedy & Backtracking2

Dynamic Programming5

Bit Manipulation1

Advanced Structures4

Lessons

Contribute, invite only

Data Structures & Algorithms

Python Essentials1

Arrays & Strings4

Searching & Sorting14

Linear Search
Binary Search
Jump Search
Interpolation Search
Exponential & Fibonacci Search
Bubble Sort
Selection Sort
Insertion Sort
Merge Sort
Quick Sort
Heap Sort
Counting Sort
Radix Sort
Searching & Sorting Cheat Sheet

String Algorithms4

Stacks & Queues2

Heaps & Priority Queues1

Greedy & Backtracking2

Dynamic Programming5

Bit Manipulation1

Advanced Structures4

Learn Data Structures & Algorithms Searching & Sorting

Contribute, invite only

Merge Sort

Split in half, sort each half, then zip them together. Guaranteed n log n, every time.

8 min readUpdated 2026-09-01sortingmerge-sortdivide-and-conquer