Linked Questions

14
votes
21answers
2k views

Do Matrix Multiplication!

In mathematics, matrix multiplication or the matrix product is a binary operation that produces a matrix from two matrices. The definition is motivated by linear equations and linear transformations ...
23
votes
14answers
2k views

Make a Bubble-wrap simulator

Bubble-wraps are maximum-level entertainment. Everyone can agree to that. Now, you will make even computers enjoy bubble-wraps. Specs You will be given two integers, w, and h.(each are responsively ...
14
votes
15answers
3k views

Fill In the Blanks

Input A nonnegative integer n, and a nonempty string s containing only alphanumeric characters and underscores ...
19
votes
14answers
2k views

Seeking Secret Swapping Sequences

This is a cops-and-robbers challenge, the robbers thread can be found here. Your task is to write some code that outputs an OEIS sequence, and contains the name of the sequence in the code (...
15
votes
18answers
970 views

Alphanumeric balance

Write a program which gets a string as its input, and counts the number of alphanumeric and non-alphanumeric characters in it. It has to display its result like this: input: ...
19
votes
13answers
685 views

Tips for golfing in dc

What general tips do you have for golfing in dc? dc is a calculator utility for UNIX/Linux that predates the C language. I am interested in how to make my dc programs (calculations?) shorter. I'm ...
12
votes
16answers
438 views

Tips for golfing in Factor

What general tips do you have for golfing in Factor? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Factor (e.g. "remove comments" is ...
21
votes
11answers
3k views

Is it a substring of itself?

Given a string, return whether the string is a substring of the program's source code. Standard quine rules apply, meaning you cannot read your own source code. The length of the input is guaranteed ...
18
votes
15answers
2k views

Golf the Chinese 9*9 multiple table

Output the following table: ...
17
votes
10answers
1k views

Sign change, loop and display with minimal padding

Input: Two integers: one negative, one positive. Output: On the first line output lowest to highest. On the second line we've removed the highest and lowest numbers and sign-changed all individual ...
55
votes
2answers
7k views

Seriously, GolfScript, CJam, or Pyth?

Some time ago, the following question was asked: GolfScript, CJam, or Pyth? Based on the title only, I thought that it would be a very nice challenge, but unfortunately, it turned out to be a question ...
8
votes
12answers
1k views

Rearranging a set of numbers into order

The Question Given a set of 9 numbers, m[], which contains only numbers 1 through 9 in a random order, with no two numbers being the same, create a program in any ...
5
votes
13answers
2k views

0.0000000000000000001

Notice the pattern in the below sequence: 0.1, 0.01, 0.001, 0.0001, 0.00001 and so on, until reaching 0.{one hundred zeros}1 Then, continued: ...
12
votes
12answers
1k views

Iterated Dice Rolling

Given an input n where 3 <= n <= 25, perform the following steps, starting with a single ...
19
votes
7answers
1k views

Hilbert-Curvify a Matrix

Inspired by this question Another way to unroll a 2D image into a 1D string is to use an Hilbert Curve. There are many version of this curve, depending on the number of iterations used while ...

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