ir*1< is the same as rE1< if you input 2. 
Answer-Chaining Fibonacci
code-challenge answer-chaining sequence restricted-source printable-ascii
(Inspired by ASCII's 95 Characters...95 Movie Quotes)
The Challenge
Given input n, output the nth Fibonacci number. Simple, yeah? The catch is you must take the character set of the previous an...
Note: There was not a vanilla challenge to actually flip a coin, even though there were mentions about flipping coins a lot of places. Even though there is a challenge to generate a random number from 1 to N, I suspect this is not a dupe. These questions ask for random numbers from 1 to N, whi...11
That code is smooth as Teflon
code-golfascii
Literally! April 6th is National Teflon Day, which is celebrated with Teflon-coated pans (what we will be making). So, given a positive integer n, create a Teflon pan. The "pan" section of the pan is an octagon with each of its sides consisting of n ...
-1
So what happens after Brexit? Here is my prediction; and as such I need an efficient script written in C, Java, JavaScipt, BASIC or other any other computer programming language of your choice to fulfill what I believe will be inevitable.
Scenario:
The year is 2021 and the United Kingdom of Eng...
1
This is a version of the recent challenge Is this number an exact power of -2? with a different set of criteria designed to highlight the interesting nature of the problem and make the challenge more difficult. I put some consideration into it here.
The challenge as wonderfully stated by by Toby...
Backstory
Not really real, sshh!
It all started one day when a coworker brought in a homemade loaf of bread for my boss's birthday.
My boss really liked this loaf of bread, and he wanted another. Unfortunately, my coworker has quit, so my boss needs me to give him another loaf.
The problem is...
0
Let's say I find an awesome challenge here, but I can make a different challenge out of it by changing the criteria significantly. Is it poor form to post a new challenge with a completely different set of criteria?
If there is no general answer to this I can describe the specific example I'm th...
1
Is there a tag that can be used for an "operation golf" (for lack of a better phrase) challenge? Where the criteria is, for example, the number of operators and/or library function calls (e.g. cos or whatever) you use, rather than the character/byte count? (That's just an example, such a challeng...
The challenge in question.
I have discussed this in the comments of the challenge and in the chat room for that challenge where I was told that TNB was the place to discuss it. I brought it up in TNB and I was told to discuss it here.
This is the current consensus on what on is makes a challeng...
Fill the operators!
It's math.
Back to the days when you used to play with expression.
Find at least one expression that evaluate to some value, say x.
That is,
For example,
Input:
[6, 1, 3, 4] 24
Output:
6 / (1 - 3 / 4)
Explanation:
We have numbers 6 1 3 4 (space separated string - s...
It's a funny accident that this world happens to have just 1 time dimension, but it doesn't have to be like that. It's easy to imagine worlds with 2 or more time dimensions, and in those worlds you could build computers and run software on them, just like in this one.
The System
Here is a syste...
There are a good deal of challenges that disallow the use of built-in operations and I was wondering if we should consider implicit operations built-ins.
For example in Brain-Flak two things that are next to each other will be added implicitly, the program
({}{})
adds two numbers. However now...
Challenge
Define a function f:double->double (double is a float data type ieee standard did, but you can use fixed float point data number too) such that f(f(n)) = -n for all non-zero double n. Not has to be any tick in save function state in static variables. The code more short in bytes wins.
Find the Translation Table
Given two strings, find the translation table between the two, if the translation is not possible, output false.
Probably most easily defined through examples:
Valid Cases
bat,sap = ["bt","sp"]
sense,12312 = ["se","12"]
rabid,snail = ["rabd","snal"]
F...
Character classes match single characters. You need to repeat them:
var exp = new RegExp("^([a-z]*)$");
console.log( exp.test('hello') );
console.log( /^([a-z0-9]*)$/.test('abc12') );
Or if you want to require at least one character, use + instead of *.
Also, if you're just using the pattern...
Python 2, 7 references
Creating this solution wasn't as easy as it looked. Searching StackOverflow for specific code is difficult, since symbols are not included in the search.
I had found a way to do this with 2000-bit random numbers, using a different answer in place of Ref #2, but I couldn'...
