Efficient solutions to HackerRank Problems with Python
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• 30 Days of Code
• Problem Solving
• Python

30 Days of Code

Day	Challenge	Points	Solution
0	Hello, World	30	Day 0.py
1	Data Types	30	Day 1.py
2	Operators	30	Day 2.py
3	Intro to Conditional Statements	30	Day 3.py
4	Class vs. Instance	30	Day 4.py
5	Loops	30	Day 5.py
6	Let's Review	30	Day 6.py
7	Arrays	30	Day 7.py
8	Dictionaries and Maps	30	Day 8.py
9	Recursion	30	Day 9.py
10	Binary Numbers	30	Day 10.py
11	2D Arrays	30	Day 11.py
12	Inheritance	30	Day 12.py
13	Abstract Classes	30	Day 13.py
14	Scope	30	Day 14.py
15	Linked List	30	Day 15.py
16	Exceptions - String to Integer	30	Day 16.py
17	More Exceptions	30	Day 17.py
18	Queues and Stacks	30	Day 18.py
19	Interfaces	30	Day 19.py
20	Sorting	30	Day 20.py
21	Generics	30	Day 21.py
22	Binary Search Trees	30	Day 22.py
23	BST Level-Order Traversal	30	Day 23.py
24	More Linked Lists	30	Day 24.py
25	Running Time and Complexity	30	Day 25.py
26	Nested Logic	30	Day 26.py
27	Testing	30	Day 27.py
28	Nested Logic	30	Day 28.py
29	Testing	30	Day 29.py