2
Background
Consider the shape \$T(n)\$ consisting of a triangular array of \$\frac{n(n+1)}{2}\$ unit regular hexagons:
Let's call \$T(2)\$ a tribone.
John Conway proved that \$n = 12k + 0,2,9,11\$ if and only if \$T(n)\$ can be tiled (i.e. exactly covered without overlapping) by tribones. At...
Hi i have made the the following code but i need it in the form of list comprehension. I've tried many solutions but end up getting syntax error for //=2
def incrementValues(m):
for i in range(len(m)):
for ii in range(len(m[i])):
if m[i][ii] % 2 == 0:
m...
I want to create a challenge for the community by having to make a fractions class.
Python knows int. Python knows float. It doesn't know frac. You'll teach it!
How? Create a frac class of course. (That's short for fraction; and yes, I want you not to capitalize.)
What should that class contai...
In Essentials of Programming Languages by Friedman, if I am correct, Chapter 8 discusses something similar to the module system in Standard ML.
8 Modules
In this chapter, we introduce modules as a way of satisfying these
needs.
We will need a good way to separate the system i...
My mom really wants me to eat broccoli, but I hate it and never want to eat it. Mom wants to trick me so she cuts it into small pieces, puts it in a salad and mixes it. Help me find out if the salad contains broccoli!
Input:
Array of mixed letters of all the ingredients. For a single broccoli i...
On a toroidal grid (you can wrap around) where each cell indicates one direction (^ > v <) if we pick a cell and start to walk following these directions, we will eventually get stuck in a loop.
We may end up in a different loop, depending on our starting cell.
Not all the cells we encounter co...
You step into the restroom, and notice that the toilet paper has missing! It occurs to you that someone had stolen it. Strangely enough, the first thing you would like to know is the amount of toilet paper the thief stole.
Task
You are given three integers \$ I \$, \$ R \$, and \$ G \$, the det...
Basically I have a request class that has different kinds of objects each being of enum type.
Based on the request object, I want to write code to loop through and if a request has a specific type of enum then add that enum type or else skip that.
My main thing is it needs to updated everytime...
This is an answer-chaining challenge in which each answer builds on the previous answer. I recommend sorting the thread by "oldest" in order to be sure about the order in which the posts are made.
The task:
The only rule is that the program MUST work in all the languages before it. This is cruc...
