Data Structures & Algorithms Pro
Master Problem Solving, DSA & Crack Coding Interviews (C++ / Java / Python)
Level 1: Logic Building + Basics
complexity, recursion, patterns
Problem Solving
Approach, dry run, edge cases, stepwise thinking.
Complexity (Big-O)
Time & space analysis, best/worst case, asymptotic notation.
Recursion
Base case, recurrence, recursion tree, backtracking intro.
Pattern Problems
Number/star patterns, logic building exercises.
Level 2: Arrays & Strings
sliding window, two pointers, patterns
Arrays
Traversal, rotation, prefix sum, subarray problems.
Sliding Window
Fixed/variable window, max subarray, substring problems.
Strings
Pattern matching, anagrams, palindromes, KMP intro.
Two Pointer
Pair sum, triplets, merging, in-place operations.
Level 3: Core Data Structures
stack, queue, linked list, hashing
Stack
LIFO, next greater element, balanced parentheses, infix/postfix.
Queue
FIFO, circular queue, deque, sliding window max.
Linked List
Singly/doubly, reversal, cycle detection, intersection.
Hashing
Hash maps, sets, frequency counting, collision resolution.
Level 4: Advanced DS
trees, BST, heap, graphs
Binary Trees
Traversals (in/pre/post), diameter, LCA, level order.hot
BST
Search, insert, delete, kth smallest, validate BST.
Heap / Priority Queue
Heapify, heap sort, top K elements, merge K lists.
Graphs
BFS, DFS, cycle detection, topological sort, shortest path (Dijkstra).
Level 5: Algorithms
search, sort, greedy, DP
Searching
Binary search variants, rotated array, search in 2D matrix.
Sorting
Merge sort, quick sort, counting sort, stability.
Greedy
Activity selection, coin change, interval scheduling.
Dynamic Programming
Memoization, tabulation, knapsack, LCS, matrix chain, DP patterns.
Level 6: Interview Preparation
LeetCode, mocks, optimization, company prep
LeetCode Style
150+ curated problems (FAANG, product based companies).
Mock Interviews
1:1 live mock, feedback, communication skills.
Optimization
Space/time trade-offs, edge cases, clean code.
Company Prep
Amazon, Google, Microsoft, TCS, Infosys specific patterns.
💼 Practice & Applications
sheets, daily coding, algorithm implementations
🧰 Skills You Will Gain
master DSA for interviews
Crack Coding Interviews
Build Strong Logic & Get Placement Ready · Live problem solving sessions
✅ 250+ curated problems · Mock interviews · Certificate
