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The greatest common divisor (GCD) of a sequence is the greatest positive integer which divides each element of this sequence.
You are given a sequence A of positive integers with size N . You are allowed to delete up to N−1 elements from this sequence. (I.e., you may delete any number of element...
Meta:
Is different error confused or ambiguous?
Any better way to score?
There is something wrong with your input
Write a program / function, which take an positive integer as input, and fail in different ways for different inputs.
Input
An positive integer. You may specify integers your...
Source in n bytes
Write a program A and an integer K that, when given a number n>=K, your program generates a program(in same language) of length n that generates the source program A and don't if some characters are removed.
Smallest K for each language win.
quine
Fridge magnet substitution
When writing a message with fridge magnets, you'll often find yourself substituting a 1 for an I. In this challenge, your goal is to find out if a message can be written using the letters of another message. The allowed substitutions are:
A = 4
B = 8
E = M = W = 3
G =...
how to write a program for run always in linux server?(for example Web crawler server)
I have two problems for do it.
1.what is best method for run always my program?
i use :
while(true) {
server = new SERVER();
}
is this way is true or false?
2.how my server always listen to user input witho...
In mathematics and physics, there are a large number of topics named in honor of Swiss mathematician Leonhard Euler (1707-1783), who made many important discoveries and innovations. Many of these items named after Euler include their own unique function, equation, formula, identity, number (single or sequence), or other mathematical entity. Many of these entities have been given simple and ambiguous names such as Euler's function, Euler's equation, and Euler's formula.
Euler's work touched upon so many fields that he is often the earliest written reference on a given matter. In an effort to avoid...
Your goal is to alternate uppercase and lowercase letters, while ignoring non-alphaneumeric characters.
Input => Output
abc => aBc OR AbC
a c => A c OR a C
abc123abc => AbC123aBc OR aBc123AbC
Shortest answer wins.
Introduction:
In the northern hemisphere (i.e. Europe, North America, etc.), the seasons are divided like this:
- Spring: March, April, May
- Summer: June, July, August
- Autumn: September, October, November
- Winter: December, January, February
In the southern hemisphere however (i.e. Australi...
It's a common problem to navigate in 2d matrix. We've seen it many times and will see again. So lets help future us and develope shortest solutions to generate all eight possible steps in 2d matrix.
Challenge
Your code must output next 8 pairs of -1,0,1 in any order:
(0,1)
(0,-1)
(1,0)
(-1,...0
Calculator tape
There is an infinite amount of calculators in a row (supporting the four basic operations, +, -, *, and /), all initially displaying "0". They have a peculiar property that any calculator which has a result lower than either the one to its left or right stop accepting any button ...
0
Create a solver for the Topspin puzzle
The Topspin puzzle consists of 20 round pieces in one long looped track. The pieces can slide along the loop. There is a turntable on one of the sides of the the loop which can rotate the four adjacent pieces laying within it, so that they reverse their ord...
Treasure Map Drawing Bot
You're organizing a treasure hunt for your friends. To conduct things more easily, you want to draw a map of all locations where you hid the precious objects.
Input
A string consisting of the locations of the objects separated by newlines. Each location is represented ...
This is the code
#titanic {
float: none;
}
Question
Find the logarithm of a given number.
I/O
A number as input along with base n
Its logarithm to base n
Restrictions
No use of built in methods for creating logarithm like Math.log , Math.ceil etc.
This is code-golf so shortest code in bytes wins
Given a list of all the words in english and a string with s_me missi_g lett__s, find one way to fill in the letters. Do note that some words on the list contain special characters (! & ' , - . /) and numbers
Input:
This list and a string with missing letters.
The input sentence can contain or...
