DSA ka complete roadmap

10 structured modules — Striver's A2Z pattern. Basics se advanced tak. Har topic ka full coverage with visualizations aur problem breakdowns.

Arrays: basics aur traversal20 min Two Pointer Technique25 min Sliding Window Pattern28 min Prefix Sum & Subarrays22 min Top Array Problems (LeetCode)30 min

Linked List: creation aur traversal22 min Insert, Delete, Reverse25 min Floyd's Cycle Detection (Tortoise-Hare)20 min Merge Two Sorted Lists18 min Top Linked List Problems28 min

Stack: LIFO aur implementations18 min Queue & Deque18 min Monotonic Stack Pattern25 min Next Greater Element problems22 min Valid Parentheses & Stack Problems20 min

Recursion: call stack aur base case22 min Recursion Patterns: subsets, permutations28 min Backtracking Framework30 min N-Queens & Sudoku Solver25 min Maze & Path Finding Problems22 min

Binary Tree: structure aur traversals24 min BST: search, insert, delete22 min Height, Diameter, Balanced Tree20 min Lowest Common Ancestor & Path Sum25 min Tree Construction from Traversals28 min

Graph: representation aur types22 min BFS & DFS: traversal patterns28 min Dijkstra's Shortest Path25 min Minimum Spanning Tree (Prim's & Kruskal's)24 min Topological Sort & Cycle Detection22 min Top Graph Problems (LeetCode)30 min

DP: recursion se memoization tak25 min DP Patterns: Fibonacci se Knapsack tak28 min 0/1 Knapsack & Subset Sum24 min LIS, LCS & Edit Distance26 min DP on Strings & Grids28 min Top DP Problems (LeetCode)30 min

Greedy: intuition aur proof20 min Interval Scheduling & Merge Intervals22 min Heap / Priority Queue24 min Sorting: Merge, Quick, Counting, Radix28 min Top Greedy Problems22 min

Binary Search: sorted array mein search18 min Lower Bound, Upper Bound, Floor/Ceil22 min Search in Rotated Sorted Array20 min Binary Search on Answer25 min Top Binary Search Problems24 min

Trie: prefix tree aur autocomplete22 min Segment Tree: range queries28 min Bit Manipulation Tricks20 min Interview Patterns Recap25 min Capstone: Complete DSA Revision30 min

Is course ke baad aap kya kar paoge?

Arrays, strings aur linked lists confidently solve karoge
Trees aur graphs ki traversals samjhoge
Dynamic Programming ke patterns pehchanoge
Sorting aur searching algorithms implement karoge
Recursion aur backtracking se complex problems solve karoge
MNC interviews ke DSA rounds clear karoge

Striver's A2Z Roadmap

Ye roadmap Striver's (Take UForward) A2Z DSA sheet par based hai — 450+ problems ka structured approach. Har problem ka visual explanation aur step-by-step breakdown milega.

Interview Prep Strategy

3 problems/day + har problem ka pattern note karo. Revision schedule: Week 1 ✓ Arrays+Strings, Week 2 ✓ LinkedList+Stacks, Week 3 ✓ Trees+Graphs, Week 4 ✓ DP+Greedy.

Recommended Resources

LeetCode: Pattern-based practice
NeetCode 150: Curated problem set
GFG: Company-wise problems
InterviewBit: Mock interviews