Questions tagged [function]
For challenges that ask for a function or involve functions in some way. (Also known as methods or subroutines.)
28 questions
13
votes
16
answers
893
views
Make a zigzag array of length n with a defect at position d
In the fewest bytes, in any language, write a function, zigzagdefect(n, d) that takes as input integers n and d < n. The function should return a list of length ...
- 231
5
votes
3
answers
529
views
Valid python function invocation signatures
Background
In Python, function arguments are defined within the parentheses following the function name in the function definition. There are different ways to present function arguments, and they can ...
- 181
27
votes
12
answers
1k
views
Increment, decrement, undo, peek
Write a program or function (hereafter "function") that returns or prints the source code of four new functions: Increment, decrement, undo, and peek.
The initial function contains an ...
- 11.9k
19
votes
62
answers
5k
views
Write a function [closed]
I honestly can't believe this challenge does not already exist.
The challenge
Write a function.
The specifics
Your program must define some sort of callable function. This includes anything ...
- 2,578
12
votes
22
answers
2k
views
Find the C-factor of a vote
In this challenge you will be determining how controversial a vote is, given an array of other votes, by figuring out a number called the C-factor. What is the C-factor, you ask?
Well, imagine you've ...
- 2,578
16
votes
14
answers
2k
views
Arbitrary Length Hashing
Consider you have a hash function \$\mathcal{H}\$ which takes strings of length \$2n\$ and returns strings of length \$n\$ and has the nice property that it is collision resistant, i.e. it is hard to ...
- 26.4k
-1
votes
1
answer
200
views
Symmetric Numbers [duplicate]
write a function to tell if a number is symmetric or not.
for example:
input:
151
output:
True
input:
142
output:
False
and so on:
1111 True,
2390 False,
1226221 True
- 335
33
votes
15
answers
4k
views
Black Box Trigonometry
Write a program or function that can distinguish the following 12 trigonometric functions: sin,
cos,
...
- 26.4k
-3
votes
2
answers
1k
views
Fastest way to perform the equivalent of an if-statement in x86 assembly
The task is simple: Create an if-statement from scratch in x86 assembly that runs in as few clock-cycles as possible.
Must be x86 assembly.
Can't use any of the conditional jump/branch instructions (e....
- 245
19
votes
10
answers
2k
views
Approximate definite integrals using Riemann sums
Left and right Riemann sums are approximations to definite integrals. Of course, in mathematics we need to be very accurate, so we aim to calculate them with a number of subdivisions that approaches ...
- 42.9k
21
votes
7
answers
2k
views
Half-Exponential Function
A half-exponential function is one which when composed with itself gives an exponential function. For instance, if f(f(x)) = 2^x, then ...
- 42.3k
13
votes
3
answers
537
views
Compute the most efficient binary function
Today, we'll be computing the most efficient binary function. More specifically, we'll be computing the function which, when an expression is created from applying the function to the constant input 0 ...
- 42.3k
10
votes
2
answers
604
views
Convert pointfree to pointful
Being a Haskell hacker, I prefer pointfree notation over pointful. Unfortunately some people find pointfree notation hard to read, and I find it hard to get the correct number of parentheses when I ...
- 3,958
15
votes
5
answers
283
views
Properties of Binary Functions
Many important topics in abstract algebra involve a binary function acting on a set. A number of properties of such functions have been defined in the investigation of such topics.
Your challenge will ...
- 42.3k
2
votes
4
answers
852
views
Pi Bowling to 10 in 10 [closed]
Your Goal: Estimate pi to at least 10 decimal places. The format is your choice - it can output as a number, as a string, as an output to STDOUT, etc.
Seems easy, right? But wait, it's not as simple ...
- 2,976