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DSJAVA 路 Public course
Data Structures and Algorithms in Java
14 modules 路 56 questions
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1. ADT Contracts and Complexity
2. Arrays and Dynamic Lists
3. Linked Lists and Pointer Invariants
4. Stacks and Expression Processing
5. Queues and Fair Scheduling
6. Call Stacks and Recursion
7. Binary Trees and Traversals
8. Binary Search Trees
9. Heaps and Priority Queues
10. Searching Ordered and Unordered Data
11. Hash Tables and Collision Reasoning
12. Sorting and Divide-and-Conquer
13. Graph Representations and Traversal
14. Shortest Paths and Relaxation
DS-04 路 Module 4 of 14
Stacks and Expression Processing
Use LIFO state for reversal, parsing, evaluation, and monotonic scans.
Available now
4 questions
Browser-only practice
1
LIFO Token Trace
Level 1 路 data-structures 路 java 路 trace
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2
Delimiter Validator
Level 1 路 data-structures 路 java 路 implement
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3
Postfix Calculator
Level 2 路 data-structures 路 java 路 apply
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4
Next Greater Values
Level 3 路 data-structures 路 java 路 challenge
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