Anti-codegolf, unique characters Objective Write a program/method whose source code's characters are unique. You shall put as many characters as you can. Input There is no input. Valid characters All characters are identified by their Unicode code point. The following characters are invalid, and ...

The mean of a population \$(x_1,\dots,x_n)\$ is defined as \$\bar x=\frac1n\sum_{i=1}^n x_i\$. The (uncorrected) standard deviation of the population is defined as \$\sqrt{\frac1n\sum (x_i-\bar x)^2}\$. It measures how dispersed the population is: a large standard deviation indicates that the val...

Write a program to factorize a semi-prime number in the shortest amount of time. For testing purposes, use this: 38!+1 (523022617466601111760007224100074291200000001) It is equal to: 14029308060317546154181 × 37280713718589679646221

English language text [code-restriction] [popularity-contest] Print 99 bottles of beer (any variant), using code which is also valid English. Correct spelling, punctuation and grammar are essential (this rules out a lot of languages that require certain punctuation or keywords). The text doesn't...

Your task here is to take a LifeOnTheEdge pattern and convert it to LifeOnTheSlope. A LifeOnTheEdge pattern is composed of these four characters: |_L . A pattern corresponds to a certain arrangement of "on" edges in a square grid. The pattern is placed in the grid first with the characters in the...

Write a full program to find whether the binary representation of a number is palindrome or not? Sample Input 5 Sample Output YES Print YES if binary representation is palindrome and NO otherwise.

Given an input of an integer n and a list of positive integers m1, m2, ..., output a list of integers m1', m2', ... where mx' is defined as the average of mx-n through mx+n. When calculating these averages, ignore indices that are out of bounds (and adjust what you are dividing the sum by accord...

EDIT: I will be accepting an answer Monday, 2/15/2016. May the bytes be ever in your favor! In his "Print the N-Bonacci Sequence" challenge, @DJMcGoathem describes the N-bonacci sequences, wherein the previous N numbers are summed, instead of the traditional 2 of the Fibonacci sequence (said to ...

In the face of some regrettable rules that turned the original into a glorified sorting task, I am posting a more challenging variant. Shout out to Luis Mendo for the suggestion of how to improve the original challenge. You've inherited a server that runs several apps which all output to the sam...

Challenge Given an integer radius \$r \geq 0\$, write a program that prints each set of cartesian coordinates in a counter-clockwise spiral originating at \$(0, 0)\$ as shown here (for \$r = 3\$), with indices: Input The program should take \$r\$, a non-negative integer, as an input. The input i...

Haiku Quine code-golf quine source-layout A haiku is a type of poetry originating from Japan following a simple pattern: 5 syllables on the first line, 7 syllables on the second, and 5 syllables on the third. Traditionally, haikus also include some reference to nature or seasons, but we'll ignore...

Approximate when you are going to die statisticsapproximationcode-challengecode-golf A mortality table (or life table) is an actuarial tool that gives the probability that a person will die before his next birthday, and is used to help calculate the premiums for life insurance (among other things...

In this challenge, submissions ("bots") should be Javascript functions which try to win as many races as possible. In each race, bots will have a limited amount of energy which should be used to travel as quickly as possible over a distance of 100 units. Mechanics Each game will consist of a numb...

Note: We already have the old factorial challenge, but it has some restrictions on the domain, performance, and banning built-ins. As the consensus here was to create a separate challenge without those restrictions so that more esolangs can participate, here it goes. Also, we're discussing whethe...