All Questions
4,645
questions
1
vote
1
answer
462
views
Run a game of Flood
This is a Code Golf challenge.
Flood is a game in which the player is presented with a game board such as this:
On each turn, you choose a colour (on the link above, by clicking a square containing ...
- 2,908
1
vote
52
answers
2k
views
Is it a completely even number?
A completely even number is a positive even integer whose divisors (not including 1) are all even.
Some completely even numbers are:
2 (divisors: 2, 1)
4 (divisors: 4, 2, 1)
16 (divisors: 16, 8, 4, 2,...
- 13.8k
1
vote
4
answers
462
views
Send the pairs in smallest output
Write two programs A and B.
Program A (the encoder) takes 1024 pairs of integers \$(k,v)\$, where \$0≤k<2^{32}\$ and \$0≤v<1024\$, and all \$k\$ will be different. It will output a single ...
- 20.6k
1
vote
7
answers
283
views
What's the missing column/row? (GCJ 2016-1A rankfile)
There is an N x N square of numbers.
All columns increase strictly monotonically from top to down
All rows increase strictly monotonically from left to right
There ...
- 1,859
1
vote
1
answer
201
views
Simple "hyena" program [duplicate]
Write a program that takes a string as an input. For the input:
If the input doesn't match the source code, the program shall output the input intact. (Hence a cat)
Otherwise, the program shall fall ...
- 5,497
1
vote
0
answers
80
views
Merry Christmas (and a Happy New Year) [duplicate]
The goal of this challenge is to create a program that outputs a string depending on the time of year.
Output
If the date is December 25, output:
...
- 11.5k
1
vote
16
answers
2k
views
Drawing the Stack Overflow logo
From here. Every new game is the first day of the month, 12:00 PM UTC.
The goal is to create the Stack Overflow logo using ASCII characters.
It looks like this.
The exact output should look like this:...
user103617
1
vote
1
answer
5k
views
Find the Longest Palindrome in a String by Removing Characters [duplicate]
Problem: Remove characters from strings to make the longest (character length) palindrome possible. The first line gives an integer value of the number of strings to test. Each subsequent line is a ...
- 119
1
vote
3
answers
259
views
Havel-to-da-Hakimi [duplicate]
It was a dark and stormy night. Detective Havel and Detective Hakimi arrived at the scene of the crime.
Other than the detectives, there were 10 people present. They asked the first person, "out of ...
- 790
0
votes
2
answers
492
views
Wir hassen Umlaute! (We hate umlauts!)
Introduction
As you all know, German has umlauts. They're these things: ¨
However, most keyboards don't have an umlaut key. That's fine, though, because you can ...
- 69
0
votes
7
answers
656
views
Shortest way to get a TypeError
It's simple, simply write the shortest code to raise a TypeError.
In Python you can do:
raise TypeError
However it should be ...
- 2,001
0
votes
0
answers
102
views
Josephus Problem [duplicate]
With n people numbered 1 to n in a circle, every second one is eliminated
until only one survives. For example, for n=10, the elimination order is
2 4 6 8 10 3 7 1 9, so 5 survives. The problem: ...
- 103
0
votes
1
answer
323
views
Sunset in every capital [closed]
This is a very simple challenge.
Task
Whenever your code is run, your code should output the next sunset date and time in GMT for all capital cities on Earth. You should get the list of capitals ...
user9207
0
votes
2
answers
689
views
How compute WPA key? [closed]
WPA2, the actual encryption standard that secures all modern wifi networks, has been cracked... This challenge has nothing to do with the way that the WPA2 was cracked, however is is about computing ...
- 2,862
0
votes
1
answer
4k
views
Implement DFA/NFA/epsilon-NFA
Write the shortest code that implements a:
DFA
NFA
epsilon-NFA
The program should accept as input:
a string(that we want to see if is accepted or not)
the delta function, represented in whichever ...
- 779
0
votes
0
answers
175
views
Create a chain of programs in different languages [duplicate]
Create a program in any language, which outputs the source code for a program in another language, which outputs the source code for a program in another language, and so on.
Please post at the top ...
- 10.8k
0
votes
7
answers
1k
views
Acrostic Poem - Programming [closed]
TASK:
Make an acrostic poem in the lines.
e.g.
BATCH
break
attrib -h acrostic.txt
type acrostic.txt
cls
help
The output CAN also be an acrostic poem.
...
- 166
0
votes
3
answers
277
views
Output in the Correct Order
Ok lets say we get a input the following csv file (all entries are quoted strings)
...
- 1,314
0
votes
6
answers
417
views
Generate number from given range
Your function must accept three numbers in any order:
A signed real number (or ±Infinity) - The number (N) for which you have ...
- 1,473
0
votes
0
answers
168
views
Find the number of strings from the list that have a Levenshtein distance of 3 or less to the string “together” [duplicate]
Possible Duplicate:
Find the minimum edit distance between two strings
The file below (see link) contains 58,111 lines with a single lower case word on each line. Find the number of strings from ...
- 9
0
votes
4
answers
491
views
Write an program that terminates after 60 seconds - Cops' Thread
This is a cops and robbers challenge - Robber's Thread
Write a program that terminates after exactly 60 seconds (or as close to it as possible). For example:
...
- 203
-1
votes
1
answer
215
views
Solitaire no-win states [duplicate]
NOTE: SIMILIAR TO Solitaire Dreams - Creating a winnable solitaire starting hand
Find a minimum of 5 deck orders where if the cards were dealt out would create a game of Klondike Solitaire where ...
- 111
-1
votes
1
answer
2k
views
Solve this math problem in smallest amount of code [closed]
Here I found a cool math problem. I thought you could write some golfed code to compute all answers between x and x.(there is an infinite amount).
Problem:
Once upon a time, and old lady went to sell ...
- 211
-1
votes
23
answers
2k
views
Find next multiple of 32 that follows given number without using *, / and loops
Imagine simple math problem. You have a number, say it's 1000. And you want to find the next multiple of 32 that follows 1000. You automatically make some simple calculations and get the result. ...
- 1,067
-1
votes
5
answers
359
views
Do not use the same code again [closed]
I want to give a task. The main rule is not to use the same code again, it means no loops, no jumps, no goto, no recursion, if you declare procedure it can be called only once and etc. Also if you ...
- 1,373
-2
votes
1
answer
341
views
Generate a hexdump of a file! [duplicate]
In this task, your goal is to write a program for generating hexdumps of files of arbitrary types.
Input
The input consists of a (relative or absolute) path to the file to be processed. It may be ...
- 11.9k
-2
votes
4
answers
791
views
Find the hardest OEIS sequence to golf!
Notice: This question originally had people write comments with a shorter program, rather than new answers. This has been changed so that people with shorter programs can get reputation too. Hopefully ...
- 3,129
-3
votes
1
answer
321
views
Find an Eulerian Circuit
Challenge
You have been assigned a task to write a program which takes a multigraph as its input and if it contains an Eularian circuit to return one. Otherwise, the program's behavior is undefined, ...
- 163
-3
votes
4
answers
361
views
Solve an algebraic expression
The Challenge
Your task is to create a program that can solve an algebraic equation.
Input
Input will consist of a String. The string will be an equality ...
- 679
-3
votes
53
answers
902
views
Return the highest possible placement value based on the input
Introduction
The challenge itself was something I came across and had to try and figure out for a personal of project of mine. I ended up branching out and asking family members if they could provide ...
- 185
-3
votes
1
answer
232
views
Python Prime Problem [duplicate]
Your challenge is to write a Python program to print all the primes (separated by whitespace) less than a given integer N with an asterisk (...
- 453
-3
votes
1
answer
539
views
Find the inverse of a matrix
Write a full program to calculate the inverse of a 4-by-4 matrix.
Rules
The sixteen values of the initial matrix must be hard-coded to variables, as follows:
...
- 10.8k
-3
votes
1
answer
8k
views
Shortest way to generate UUID's version 3,4 and 5 in php
I have this function to generate UUID's:
...
- 7,885
-3
votes
1
answer
870
views
Biggest number challenge (Brainfuck) [duplicate]
This is a brainfuck version of Largest Number Printable, and this.
Let's think about brainfuck interpreter such that,
Has array that can be stretched left & right arbitrary large
Each cell can ...
- 109
-5
votes
1
answer
330
views
John's lost arrays
John has made an array of numbers which are important to him. Unfortunately, John lost the array.
Luckily, he knows some details about the array. You will receive each of these sets of details (...
- 325
-6
votes
1
answer
415
views
Print Hamlet's monologue using as few characters as possible [duplicate]
The task here is to print the text below, using as few characters as possible in your code. You can't use any external resource. (file, stdin, network)
...
anon
-6
votes
4
answers
249
views
Binary Magic Cards [closed]
There's a cool magic trick that works using the power of binary. The effect of the trick is as follows:
An audience member chooses some natural number in the range of ...
- 3,723
-6
votes
10
answers
262
views
The year counter is here [closed]
Create a program that, given an integer N, outputs the number of years we have to get to N A.D. or how many years it has been since N A.D, as a string or int. For example, given 2014, the program ...
- 3,831
-6
votes
13
answers
291
views
Am a I square repdigit? [closed]
Your Task
You will write a program or function to return a truthy value if the integer inputted to it is a square repdigit, and a falsy value if it is not. A repdigit is an integer that contains ...
- 7,197
-8
votes
4
answers
253
views
Is it an Arithmetic Sequence or not? [closed]
Challenge
In this challenge, the input will be an ordered set of numbers and the program should be able to tell if the set of numbers is an Arithmetic Sequence.
Input
The input will be a list ...
- 8,543
-8
votes
3
answers
302
views
What season is it? [closed]
Task
When running the program must show the season according to the host computer's current time.
Rules
The output must be either: Spring, Winter, Summer or Autumn.
The capitalization does not ...
- 559
-9
votes
1
answer
231
views
Bot Problem.How to solve this problem in c? [closed]
Programming problem:
In BotLand, Robots can understand all words of any combination of letters and letters with leading or trailing (not both) numeric value. Given a word W (string of alphanumeric). ...
-10
votes
4
answers
417
views
Output this sequence of numbers
Your challenge is to write a program or function to output this sequence of numbers.
Output requirements:
Must contain numbers specified above
Must be in order as specified
Numbers must be delimited ...
-17
votes
6
answers
1k
views
Print 'em goats [duplicate]
Related
Goats are great. Everybody loves goats.
And they also, for some reason, are an excellent complex ascii art for many languages to have built-ins for. Because of this, I personally feel a ...
- 10.7k
-19
votes
30
answers
3k
views
Reverse a 1-dimensional array
Note: This challenge is not the same.
Challenge
Believe it or not, we haven't got ONE challenge for reversing one-dimensional arrays (although we've got one for n-dimensional ones)! This should ...
- 40.5k