The J language has a very silly syntax for specifying constants. I want to focus on one cool feature in particular: the ability to write in arbitrary bases.
If you write XbY for X any number and Y any string of alphanumerics, then J will interpret Y as a base X number, where 0 through 9 have the...
I recently had the idea of making an annual contest in PPCG, like the Google Code Jam.
But I went through this question. "Should we really hold an annual contest? If we should, how?"
Could you tell me if we should make one or not, and if yes, with some possible ways to do it?
Question
Given the atomic number of an element in the range [1-118] output the group and period, of that element as given by the following Periodic Table Of Elements.
For elements in the Lanthanide and Actinide series, (ranges [58-71] and [90-103]), you should instead print L for the Lanthanide...
Code-Bowling Challenge
Write a program or function that produces the same output, no matter how you re-arrange the source code.
Challenge Rules
This output should be non-nil, non-empty, and non-error.
Removing characters should cause a different output (or no output / or an error) to occur....
Some decimal numbers cannot be precisely represented as binary floats due to the internal representation of the binary floats. For example: rounding 14.225 to two decimal digits does not result in 14.23 as one might expect but in 14.22.
Python:
In: round(14.225, 2)
Out: 14.22
Assume, however,...
I have this lab test which creates a shopping cart, adds items and removes items as the case may be. I have written the code and double checked every line but the lab test fails to submit.
Here is the code
class ShoppingCart(object):
def __init__(self):
self.total = 0
self.i...
Challenge:
Create a plus sign with 2 positive integers.
Inputs:
1452 and 2583
Output :
2
1452
8
3
The common digit is determined by first digit matched from input 1 in input 2.
If there is no match, do not print anything.
Shortest code wins!
