Operation Flashpoint scripting language, 165 bytes
F={x=_this select 0;n=_this select 1;i=0;r=0;g={c=_this;j=c-1;while{j>0}do{c=c*j;j=j-1};if(c>0)then{c}else{1}};while{i<n*2}do{r=r+x^i/(i call g)*(-1)^(i/2);i=i+2};r}
Call with:
hint format["%1\n%2\n%3\n%4\n%5\n%6\n%7",
[0.0, 1] call f,
...
Introduction
Connect Four is a game where you attempt to get four in a row: horizontally, vertically, or diagonally. In this code golf, we will be trying to find who won, given a game board. There will always be one winner, and only one winner.
Task
Given a Connect Four board, figure out...
Every palindrome with an even number of digits is divisible by 11, so 11 is the only [palindromic prime] with an even number of digits. - David Wasserman, OEIS
I learned this today the manual way, before I did my research, when my program skipped numbers with an even number of digits (except...
Brain-Flak, 128 bytes
Try it online!(You probably wont be able to finish it before the universe ends)
(((((((((((((()()()){}){}){}){}()){}){({}[()])}{}){({}[()])}{}){({}[()])}{}){({}[()])}{}){({}[()])}{}){({}[()])}{}){({}[()])}{})
How it works
It starts simply by pushing ninety-eight to the ...
I have read on here that many several times it has be suggested that challenge upvotes count for more rep. Is that happening?
Increase reputation awarded for questions Is one place it was mentioned but I have yet to see anything else
Python 2, 76 bytes
n=input();k=m=1
while n:m*=k*k;k+=1;r=str(11*k);n-=m%k*r==r[::-1]
print 11*k
This will take some time for input 127, but it will finish eventually.
Try it online!
I have just recently posted my first challenge and because I wanted to give all languages equal chances, I stated that the input variables are defined in the current scope already, so people wouldn't need to grab user input or write functions with params. However, people do exactly that! Is this ...
Create a simple line editor
In: a string
Allow the user to edit
Out: the modified string
The editor must at minimum allow the user to:
move a visible cursor left and right
insert or overwrite characters at the cursor position
remove characters at the cursor position
submit the new string (o...
And no, This is not a dupe of Translate ASCII text to braille.
There are 28=256 Braille patterns in Unicode. (By 'Braille' I mean 8-cell ones)
W, wait. How many ASCII letters were there?
27 = 128?
Well then, Let's turn ASCII into Braille, 'cause there is absolutely no reason not to!
Th...
Get the Decimal!
Task:
Your task is, when given three inputs:
a numerator n
a denominator d
another integer, x
Create a program/function that finds the xth digit of the number after the decimal place.
Specs:
The range of n and d is between 1 and 2^31 - 1, inclusive.
The range of x is bet...
Inspired by this:
Remove IBM
Remove the letters i,b, and m from the input, but because Watson doesn't want IBM, you can't use the letters i,b, or m in your code
Letters to remove, and banned are not case sensitive, so both ibm and IBM should not appear in your program or in the output. Neither...
