article: Big O notation Part 2, 3, dst

[ronnygunawan]

Part 2:

• O(1), O(n), O(n^2), O(n^3) in real algorithm
• Deep dive into O(log n): O(n) to O(log n) optimization (binary search, interpolation search)

Part 3:

• Deep dive into O(1): hash map, hash table, bloom filter, programming challenge that can be solved in O(1) using math

Part 4:

• Sorting algorithms, database indexing