Stack Topic Wise Problem-Solving Questions
1. Basic Stack Operations
| S.No | Problem Statement | Difficulty | LeetCode | GeeksforGeeks |
|---|---|---|---|---|
| 1 | Implement Stack using Array | Easy | - | Link |
| 2 | Implement Stack using Linked List | Easy | - | Link |
| 3 | Valid Parentheses | Easy | Link | Link |
| 4 | Min Stack | Easy | Link | Link |
| 5 | Evaluate Reverse Polish Notation | Medium | Link | Link |
2. Stack Applications
| S.No | Problem Statement | Difficulty | LeetCode | GeeksforGeeks |
|---|---|---|---|---|
| 1 | Next Greater Element | Medium | Link | Link |
| 2 | Daily Temperatures | Medium | Link | - |
| 3 | Largest Rectangle in Histogram | Hard | Link | Link |
| 4 | Remove K Digits | Medium | Link | Link |
| 5 | Trapping Rain Water | Hard | Link | Link |
3. Advanced Stack Problems
| S.No | Problem Statement | Difficulty | LeetCode | GeeksforGeeks |
|---|---|---|---|---|
| 1 | Maximal Rectangle | Hard | Link | Link |
| 2 | Basic Calculator | Hard | Link | Link |
| 3 | Longest Valid Parentheses | Hard | Link | Link |
| 4 | Remove Duplicate Letters | Hard | Link | Link |
| 5 | Number of Atoms | Hard | Link | - |
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