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Learn DSA
Data Structures & Algorithms
Complete DSA Roadmap
MODULE 1
Algorithmic Thinking & Complexity
  • Problem solving basics
  • Computational thinking
  • Pseudocode
  • Time & space complexity
  • Big‑O / Ω / Θ
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MODULE 2
Arrays & Strings
  • Arrays traversal & operations
  • Prefix sum
  • Sliding window
  • Two pointers
  • Strings & substrings
  • Anagrams
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MODULE 3
Recursion & Backtracking
  • Recursion basics
  • Call stack
  • Subsets
  • Permutations
  • N‑Queens
  • Sudoku
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MODULE 4
Searching & Sorting
  • Linear & binary search
  • Merge sort
  • Quick sort
  • Heap sort
  • Counting / radix
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MODULE 5
Linked Lists
  • Singly / doubly list
  • Reverse list
  • Cycle detection
  • Merge lists
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MODULE 6
Trees
  • Binary trees
  • DFS / BFS
  • BST
  • LCA
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MODULE 7
Advanced Trees
  • AVL
  • Red‑Black
  • Segment tree
  • Trie
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MODULE 8
Hashing
  • Hash tables
  • Collision handling
  • Frequency maps
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MODULE 9
Stacks & Queues
  • Stack
  • Queue
  • Deque
  • Priority queue
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MODULE 10
Graphs
  • Graph representation
  • DFS
  • BFS
  • Topological sort
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MODULE 11
Advanced Graph Algorithms
  • Dijkstra
  • Bellman‑Ford
  • MST
  • Union‑Find
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MODULE 12
Greedy Algorithms
  • Activity selection
  • Interval scheduling
  • Huffman
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MODULE 13
Dynamic Programming
  • Knapsack
  • LIS
  • LCS
  • Edit distance
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MODULE 14
Advanced DP
  • Bitmask DP
  • Tree DP
  • Digit DP
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MODULE 15
Mathematical Algorithms
  • GCD
  • Sieve
  • Modular arithmetic
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MODULE 16
String Algorithms
  • KMP
  • Z‑algorithm
  • Rabin‑Karp
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MODULE 17
Advanced Data Structures
  • Heaps
  • Sparse table
  • Interval tree
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MODULE 18
Bit Manipulation
  • Bit tricks
  • Masks
  • XOR
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MODULE 19
Randomized Algorithms
  • Randomized quicksort
  • Reservoir sampling
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MODULE 20
Computational Geometry
  • Convex hull
  • Line intersection
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MODULE 21
Algorithm Paradigms
  • Divide & conquer
  • Greedy
  • DP
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MODULE 22
Complexity Theory
  • NP‑complete
  • Reductions
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MODULE 23
Interview Patterns
  • Sliding window
  • Two pointers
  • DFS/BFS
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MODULE 24
Competitive Programming
  • Fast I/O
  • STL tricks
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MODULE 25
System‑Level DSA
  • LRU cache
  • Bloom filter
  • Consistent hashing
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MODULE 26
DSA Projects
  • Sorting visualizer
  • Autocomplete
  • Graph engine
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MODULE 27
Career Tracks
  • Interview prep
  • Competitive programmer
  • Systems engineer
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