Hello coders, in this post you will find each and every solution of **30 Days of Code HackerRank Series** in **C++**, **Java** and **Python**. After going through the solutions, you will be able to understand the concepts and solutions very easily.

One more thing to add, don’t straight away look for the solutions, first try to solve the problems by yourself. If you find any difficulty after trying several times, then look for the solutions.

**30 Days of Code HackerRank Solution**

**Day 0: Hello, World. – Hacker Rank Solution****Day 1: Data Types – Hacker Rank Solution****Day 2: Operators – Hacker Rank Solution****Day 3: Intro to Conditional Statements – Hacker Rank Solution****Day 4: Class vs. Instance – Hacker Rank Solution****Day 5: Loops – Hacker Rank Solution****Day 6: Let’s Review – Hacker Rank Solution****Day 7: Arrays – Hacker Rank Solution****Day 8: Dictionaries and Maps – Hacker Rank Solution****Day 9: Recursion 3 – Hacker Rank Solution****Day 10: Binary Numbers – Hacker Rank Solution****Day 11: 2D Arrays – Hacker Rank Solution****Day 12: Inheritance – Hacker Rank Solution****Day 13: Abstract Classes – Hacker Rank Solution****Day 14: Scope – Hacker Rank Solution****Day 15: Linked List – Hacker Rank Solution****Day 16: Exceptions – String to Integer – Hacker Rank Solution****Day 17: More Exceptions – Hacker Rank Solution****Day 18: Queues and Stacks – Hacker Rank Solution****Day 19: Interfaces – Hacker Rank Solution****Day 20: Sorting – Hacker Rank Solution****Day 21: Generics – Hacker Rank Solution****Day 22: Binary Search Trees – Hacker Rank Solution****Day 23: BST Level-Order Traversal – Hacker Rank Solution****Day 24: More Linked Lists – Hacker Rank Solution****Day 25: Running Time and Complexity – Hacker Rank Solution****Day 26: Nested Logic – Hacker Rank Solution****Day 27: Testing – Hacker Rank Solution****Day 28: RegEx, Patterns, and Inro to Database – Hacker Rank Solution****Day 29: Bitwise AND – Hacker Rank Solution**

**Disclaimer:** The above Problems are generated by **Hacker Rank** but the Solution are Provided by **CodingBroz**. These tutorials are only for **Educational** and **Learning** Purpose.