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studyit.in / dtu / btech-cs / sem-3
Delhi Technological UniversityB.Tech CSSemester 3
Data Structures & Algorithms
DTU · Sem 3
Active
128PYQs
240Practice
34Notes
Operating Systems
DTU · Sem 4
112PYQs
200Practice
28Notes
Database Management Systems
MU · Sem 5
104PYQs
190Practice
26Notes
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studyit.in / dtu / btech-cs / sem-3 / dsa
DTUB.Tech CSSemester 3Data Structures & Algorithms
128PYQs
240Practice
34Notes
20QQuiz

Explain the time complexity of binary search and derive its recurrence relation.

2025End Semester5 marksSearchingMedium

Write and analyze the algorithm for merge sort. Compare it with quick sort in terms of space and time complexity.

2024End Semester10 marksSortingHard

Define a balanced binary search tree. Explain AVL rotations with examples.

2025Mid Semester5 marksTrees & BSTMedium
+125 more questions across all years
Demonstration only · not real platform data
What's inside

Everything you need before the exam

Four ways to prepare — all organized around your university, semester and subjects.

PYQs

Previous Year Questions

Questions from actual university exams, organized by year, semester, exam type and topic. Find what actually comes up.

2025End Semester10 MarksUnit 3
Find the questions that actually matter.
Practice

Topic-based Practice

Drill down into specific topics before your exam. Questions tagged by difficulty, marks and concept.

ArraysTreesGraphsDP
Target your weak areas before the exam.
Quizzes

Quick Revision Quizzes

Short subject and topic quizzes for last-minute revision. Instant feedback, progress tracking.

20 Questions15 minInstant Feedback
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Notes

Notes & Resources

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Unit 03Graph Algorithms12 Resources
Organized material, not random file dumps.
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01

Choose your university

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03

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Academic structure

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Subject
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Your subject

Data Structures & Algorithms

DTU · B.Tech CS · Semester 3

128
PYQs
240
Practice
34
Notes
20
Quiz

Practice topics

Arrays & StringsLinked ListsStacks & QueuesTrees & BSTGraph Algorithms+3 more
Demonstration only — not real platform data
Community

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Future contributor profile

Campus Contributor
Delhi Technological University
42 PYQs18 notesTop contributor
Planned for Phase 3

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Planned
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1

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Building
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Core question database
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2

Preparation

Everything students need before exams

Next
PYQs — organized by year, exam & topic
Practice question banks
Subject quizzes
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3

Community

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Jul 2026Origin

Project started

Decided to build Studyit after spending an hour hunting for DSA PYQs in three different WhatsApp groups before an exam.

Jul 2026Design

Design system locked

Finalized the core structure: University → Program → Semester → Subject. Every resource lives in this hierarchy.

NowLive

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First release focused on 2–3 universities with PYQs and practice questions for core CS/Engineering subjects.

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