Learn how to solve challenging array coding problems and prep for your technical interview.

## Double base palindrome

The decimal number 585 = 1001001001 (binary) is palindromic in both bases.

Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2.## First 100 of Fibonacci

Write a function that computes the list of the first 100 Fibonacci numbers.

## Generating a list of primes less than n

Write a function that returns the list of all primes less than

`n`.## Largest element in a list

Write a function that returns the largest item in a list.

## Rotate a 2d array in place

Rotate a 2d array in place.

## Sum with for-loop, while-loop and recursion

Write three functions that compute the sum of the numbers in a list using a for-loop.