Day	Topic	Resources/Activities	LeetCode Problem
1	Introduction to Java and DSA basics	Read introductory materials on Java and DSA concepts
2	Arrays	Study arrays, operations, and complexities
3	Array-based problems and solutions	Solve array-based problems on platforms like LeetCode	1, 121, 189, 53, 217
4	Strings	Learn string manipulation and related algorithms
5	String-based problems and solutions	Solve string-based problems on coding platforms	344, 242, 3, 151, 8
6	Linked Lists	Study singly linked lists and basic operations
7	Doubly Linked Lists	Learn doubly linked lists and their operations
8	Linked List problems and solutions	Solve problems involving linked lists	206, 21, 141, 160, 234
9	Stacks	Understand stack operations and implementations
10	Stack-based problems and solutions	Solve stack-based problems	20, 155, 150, 225, 71
11	Queues	Learn about queue operations and implementations
12	Queue-based problems and solutions	Solve problems involving queues	232, 622, 225, 346, 362
13	Trees	Study basic tree structures and traversals
14	Binary Search Trees (BST)	Learn about BST properties and operations
15	Tree-based problems and solutions	Solve problems involving trees	104, 98, 102, 101, 112
16	Graphs	Study graph representations and traversals
17	Graph algorithms: BFS and DFS	Understand BFS and DFS algorithms
18	Graph-based problems and solutions	Solve problems involving graphs	200, 207, 79, 133, 127
19	Searching algorithms: Linear and Binary Search	Learn about basic searching algorithms
20	Searching-based problems and solutions	Solve problems involving searching algorithms	704, 33, 34, 74, 35
21	Sorting algorithms: Selection, Insertion, Bubble	Learn basic sorting algorithms and their complexities
22	Sorting algorithms: Merge, Quick	Study advanced sorting algorithms and complexities
23	Sorting-based problems and solutions	Solve problems involving sorting algorithms	75, 56, 215, 252, 324
24	Greedy Methodology	Learn and solve problems on Greedy techniques	55, 621, 122, 435, 455
25	Recursion	Learn Recursion	509, 206, 94, 46, 22
26	Backtracking	Learn Bactracking Algorithms	52, 39, 79, 37, 17
27	Dynamic Programming (DP)	Learn basic concepts and problem-solving approaches	70, 322, 300, 62, 53
28	Advanced topics: Tries, Heaps, Hashing	Study advanced data structures and their applications	208, 212, 720, 211, 648, 215, 347, 23, 295, 239, 49, 242, 3, 560