daily coding problem posts

• DAILY CODING PROBLEM: #81

  2021-01-12 by Ryan N Wilson

  Problem: Given a mapping of digits to letters (as in a phone number), and a digit string, return all possible letters the number could represent. You can assume each valid number in the mapping is a single digit. For example...

• DAILY CODING PROBLEM: #315

  2021-08-15 by Ryan N Wilson

  Problem: This problem was asked by Google. In linear algebra, a Toeplitz matrix is one in which the elements on any given diagonal from top left to bottom right are identical. Here is an example: