Return true if input is a Prime number
You are given n, a positive integer. Return true if n is a prime number, and false if it's not.
Maximum contiguous sub-matrix
Find the contiguous 2-dimensional sub-matrix with the maximum sum, in a given 2 dimensional matrix of n elements of signed integer type.
Fibonacci Series Dynamic Programming
Return the Nth element of the Fibonacci series (1, 1, 2, 3, 5, 8, 13, 21, ...) efficiently without using any FOR or WHILE loops.
Time Complexity of ArrayList Insertion
Then calculate the average time complexity of inserting n new items into an empty brand new ArrayList.