CSE-201 · DSA
Data Structures & Algorithms
From arrays to segment trees, this is the cohort that ships greens together. Pair on one problem a day, explain one concept a week, and review each other's PRs.
- Instructor:
- Nusrat J.
- Schedule:
- Sun & Wed · 8:00 PM BD
- Lessons:
- 4
Syllabus
Week 1 — Arrays & Hashing
Two pointers, frequency maps, and the anagram starter pack.
- Big-O Notation Crash CourseWhy 'fast' isn't a number. We walk through constant, linear, and quadratic complexity with live examples.26mSign in to open
- Arrays in 100 SecondsA whirlwind tour of arrays: indexing, traversal, and the most common patterns.2mSign in to open
- Hash Maps & Frequency CountingWhen (and when not) to reach for a hash map. Frequency counting patterns you'll reuse forever.
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