Here you will get Solutions of all Problems of "30 Days of Code" in Many Possible Approaches...
| Day | Problem Name | Difficulty Level | HackerRank Panel Link | Solution | Solution Available Using |
|---|---|---|---|---|---|
| 0 | Hello, World. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 1 | Data Types. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 2 | Operators. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 3 | Intro to Conditional Statements. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 4 | Class vs. Instance | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 5 | Loops. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 6 | Let's Review. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 7 | Arrays. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 8 | Dictionaries and Maps. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 9 | Recursion 3. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 10 | Binary Numbers. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 11 | 2D Arrays. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 12 | Inheritance. | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 13 | Abstract Classes. | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 14 | Scope. | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 15 | Linked List. | Easy | Click Here | Click Here | C , JAVA , Python |
| 16 | Exceptions - String to Integer. | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 17 | More Exceptions. | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 18 | Queues and Stacks. | Easy | Click Here | Click Here | C++ , JAVA |
| 19 | Interfaces. | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 20 | Sorting. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 21 | Generics. | Easy | Click Here | Click Here | C++ , JAVA |
| 22 | Binary Search Trees. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 23 | BST Level Order Traversal | Easy | Click Here | Click Here | C , C++ , JAVA |
| 24 | More Linked Lists. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 25 | Running Time and Complexity. | Medium | Click Here | Click Here | C , C++ , JAVA , Python |
| 26 | Nested Logic. | Easy | Click Here | Click Here | C , C++ , JAVA , Python |
| 27 | Testing. | Easy | Click Here | Click Here | C++ , JAVA , Python |
| 28 | RegEx, Patterns, and Intro to Databases. | Medium | Click Here | Click Here | C , C++ , JAVA , Python |
| 29 | Bitwise AND. | Medium | Click Here | Click Here | C , C++ , JAVA , Python |
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