Linked Questions
14 questions linked to/from It almost works (Robbers' Thread)
515
votes
969
answers
189k
views
"Hello, World!"
So... uh... this is a bit embarrassing. But we don't have a plain "Hello, World!" challenge yet (despite having 35 variants tagged with hello-world, and counting). While this is not the most ...
- 196k
234
votes
366
answers
65k
views
Is this number a prime?
Believe it or not, we do not yet have a code golf challenge for a simple primality test. While it may not be the most interesting challenge, particularly for "usual" languages, it can be nontrivial in ...
- 210k
110
votes
328
answers
22k
views
Simple cat program
One of the most common standard tasks (especially when showcasing esoteric programming languages) is to implement a "cat program": read all of STDIN and print it to STDOUT. While this is named after ...
- 196k
92
votes
241
answers
19k
views
"DDoouubbllee ssppeeaakk!!"
Super simple challenge today, or is it?
I feel like we've heard a fair bit about double speak recently, well let's define it in a codable way...
Double speak is when each and every character in a ...
- 11.8k
78
votes
261
answers
25k
views
Is this even or odd?
Note: There is not been a vanilla parity test challenge yet (There is a C/C++ one but that disallows the ability to use languages other than C/C++, and other non-vanilla ones are mostly closed too), ...
- 5,351
64
votes
153
answers
13k
views
Draw an asterisk triangle
Inspired by a task for Programming 101, here's a challenge that hopefully isn't too easy (or a duplicate).
Input:
A positive integer n >= 1.
Output:
...
- 1,175
74
votes
139
answers
11k
views
Make a ;# interpreter
I recently created a new language called ;# (pronounced "Semicolon Hash") which only has two commands:
; add one to ...
- 49.5k
55
votes
102
answers
11k
views
Is it double speak?
In an earlier challenge I asked code golfers to produce strings which copy each character in a string. For example:
TThhiiss iiss ddoouubbllee ssppeeaakk!!
This ...
- 11.8k
66
votes
65
answers
9k
views
Convert YYYYMM to MMMYY
Basing on this SO question.
Challenge is rather simple: given a date period in the format YYYYMM output it in the format MMMYY.
...
- 15.1k
75
votes
39
answers
7k
views
Stack Exchange Vote Simulator
Write a program or function that takes in a string only containing the characters ^ and v (you can assume there will be no other ...
- 89.3k
36
votes
49
answers
4k
views
Least Common Multiple
The least common multiple of a set of positive integers A is the smallest postive integer B such that, for each ...
user45941
34
votes
49
answers
5k
views
Generate Recamán's sequence
Recamán's sequence (A005132) is a mathematical sequence, defined as such:
A(0) = 0
A(n) = A(n-1) - n if A(n-1) - n > 0 and is new, else
A(n) = A(n-1) + n
A ...
- 2,073
27
votes
30
answers
3k
views
Find the first word starting with each letter
Given a string, find the first word starting with each letter (case insensitive).
Sample
Using Ferulas flourish in gorgeous gardens. as input:
...
- 2,773
27
votes
21
answers
5k
views
It almost works (Cops' Thread)
Robbers' Thread
Your challenge is to find an existing challenge, and implement it in a way such that certain inputs fail. At least one input must not produce the correct output (use the other ...
- 35.7k