The Rat Eats The Cheese
May 14, 2019
A square maze contains cheese wedges on some of its squares:
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[ Did you know there is a cheese-wedge character in Unicode? I didn’t. The center-dot is & # 183 ;, the cheese is & # 129472 ;, and I had to sprinkle in a few & thinsp ; characters to line things up. And of course to type those I had to add extra spaces, because WordPress is aggressive about turning them into characters. ]
A rat, starting at the lower left-hand corner of the maze, can move only up or right. What is the maximum amount of cheese the rat can eat?
Your task is to write a program to determine how much cheese the rat can eat. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.
Common Characters
May 14, 2019
Today’s exercise comes from a coding challenge site:
Given a list of words containing only lower-case letters, return a list of characters that appear in all the words, with multiplicity. For instance, given the words BELLA, LABEL and ROLLER, the characters E, L and L appear in all three words.
Your task is to return a list of characters that appear in all words of an input list. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.
Programming Praxis 