01.Binary Search 02.Fibonacci & Memoized Fibonacci 03.Merge sort & bubble sort 04.Caesar Cipher 05.Sieve of Eraatosthenes learn purpose of each alogrithm & and what functionality it accomplishes ====================== Big O Notation 1. O (1) 2. O (n) 3. O (n^2) 4. log n => binary search