Questions tagged [string]
A competition to solve a particular problem through the usage and manipulation of strings.
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A Snake, A Camel And A Kebab
As many of you will know, almost every programming language has a standard casing system; unfortunately, we have not been able to agree on a singular system to use and now must frequently switch ...
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votes
6
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(1) Determine the amount of statues
Inspired by this stack of little statues that are currently on my desk at work, given to me by my colleagues from Sri Lanka when they visited The Netherlands:
This is split into two different ...
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votes
2
answers
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(2) Can the statues be stacked?
Inspired by this stack of little statues that are currently on my desk at work, given to me by my colleagues from Sri Lanka when they visited The Netherlands:
This is split into two different ...
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13
votes
7
answers
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Iterate over the neighborhood of a string
Input
A string S of length between 2 and 30. The only letters in the string will be a or b.
Output
All strings within ...
user7467
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votes
21
answers
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Scramble a Megaminx!
Scramble a Megaminx!
A megaminx is a dodecahedral version of the familiar Rubik's cube. Since 2008, the World Cube Association uses Stefan Pochmann's megaminx scrambler. The scrambles look like this:
<...
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12
votes
9
answers
773
views
Mimic the X11 Primary selection
Background
In X11 (a windowing system used by a lot of Unix-like OS), what you would call the clipboard behave a bit differently than on other OSes like MacOS or Windows. While the "traditional&...
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votes
8
answers
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Translate English to English
You have been hired by the American embassy in the UK to act as a translator. Being a programmer, you decide to write a program to do a bit of the work for you.
You've found out that often just doing ...
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votes
21
answers
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Advent of Code 2020, Day 2, Part 1
Today, my girlfriend and I started with this year's Advent of Code to improve our Python. So far we only did Day 1 and the first part of Day 2. The latter, I found to be very fun, so, to spice it up a ...
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just a caesar cipher... with a twist [closed]
I have been going to puzzling.se, and people over there write stuff in rot13 a lot, sot this gave me an idea:
Write a program that takes 2 inputs, a string and integer:
the message to encode or ...
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votes
23
answers
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Compatible strings
When studying numerology, you can say two words (strings consisting entirely of letters) are compatible if they produce the same number under the following operation (let's use the string ...
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18
votes
17
answers
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Align a list of numbers [duplicate]
Perhaps something like this is here already, but I couldn't find it.
It is not the same as Aligning Lines!.
Example:
Input:
98.6
$2,750.17
-$23
-86
3,120,487.19
...
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vote
1
answer
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Hacker Challenge: Guess the Correct Password
In an attempt to “liberate” their fellow birds, a group of highly intelligent hens are
attempting to compromise the zoo’s security system. To get access to the zoo’s mainframe,
the hens first need to ...
- 447
21
votes
38
answers
4k
views
Is It A Rainbow Color?
Challenge:
The challenge is to determine whether or not a color, given it's name, is one of the colors in the rainbow.
When supplied with a color, your program should output a truthy value if it is a ...
- 1,057
6
votes
8
answers
868
views
Bi-directional translator
Bi-directional translator
The challenge is to create a translator that can translate a [a-zA-Z ] string into another string according to the mappings below. The ...
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votes
3
answers
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views
Day of Week - Natural language processing and date parsing
You'll get a human-readable question matching one of the following syntaxes, and are expected to print/return the corresponding result. Finding similarities between the human-readable inputs and ...
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19
votes
4
answers
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Simulate my keyboard wave light!
(The word frame in the following text does not mean an actual frame, it is used as a placeholder for an undefined time unit)
The task
Imagine you have a keyboard layout with only letters like so:
<...
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votes
28
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Get the Systematic Chemical Symbol
Background
The systematic chemical symbol is defined as such for \$ 118 < n < 1000 \$:
The first letter corresponds to the first digit, capitalized.
The second letter corresponds to the second ...
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votes
17
answers
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Is it a digit haiku?
We can read 13576870234289 digit-by-digit in English, and it makes a haiku:
one three five seven
six eight seven zero two
three four two eight nine
We say it's a &...
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7
votes
2
answers
212
views
Unscramble the letters by letter frequency analysis [closed]
You know those riddles where every letter is swapped for another letter?
E.g. you get a text like
...
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14
votes
8
answers
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We're much closer than you think
Martin Ender's 2D programming language Alice has two different modes depending on what orientation the IP has: orthogonal (Cardinal mode) or diagonal (Ordinal mode). Commands in Alice change their ...
- 46.9k
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votes
23
answers
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Create an Accurate How-To Article
Here is an easy-intermediate challenge for anyone interested!
What is that?
A thing me and brother do a bit too often is this:
One of us has a problem and asks the other to explain how to do certain ...
- 2,599
25
votes
12
answers
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Decide a C integer literal
Objective
Given an ASCII string, decide whether it is a valid C integer literal.
C integer literal
A C integer literal consists of:
One of:
0 followed by zero or ...
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22
votes
44
answers
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Converting Strings to Decimals (Gone Wrong)
What?
Many programming languages, both practical and esoteric, have functions, methods, etc to convert a given string to a decimal number. This is how the process might work:
For each character in ...
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10
votes
6
answers
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views
Parse a Scala expression
Scala isn't a very commonly used language around here. Most of those who know it like it[citation needed], but some go :\ when they encounter its user-defined ...
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votes
16
answers
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Size up a number
Intro
Given a whole number \$< 100,\$ extend/shorten the english representation of the number to have as many characters as it's value.
Sandbox
Rules
Take the number \$n\$, and get it in words ...
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15
votes
15
answers
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Palindrome distance
Find what is the distance for a given string to its closest palindrome of the same length.
For this task I decided to give the characters further away from the string's center more weight (think of it ...
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4
votes
4
answers
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Parse a nested parentheses
Objective
Mimic Haskell's reads :: ReadS ().
Or in other words, parse nested parentheses. Since the target type is () (the type ...
- 4,163
16
votes
27
answers
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Compactify the query string
Introduction
Just on Hacker news, John Resig contemplates
transforming a query “foo=1&foo=2&foo=3&blah=a&blah=b” into one that looks like this: “foo=1,2,3&blah=a,b", https://...
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votes
23
answers
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Find the result of some assignment statements
In this challenge, the goal is to find the values of some variables after a number of assignments are done. An example input:
a = 5
b = 4
c = a = b
a = 2
b = a
...
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16
votes
3
answers
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views
Will all the dominoes fall?
The purpose of this challenge is to figure out whether all the dominoes will fall, given an input string representing a top view of the table.
Input format
The program can take the input as a single ...
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votes
38
answers
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I uppercase the source code, you reverse the input!
It's one of these again :D
Your task, if you wish to accept it, is to write a program/function (without any uppercase letters) that outputs/returns its string input/argument. The tricky part is that ...
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votes
12
answers
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Is this a robbery?
Backstory
You own a tiny jewellery shop in the suburbs of the city. The suburbs are too much overpopulated, so your shop has a thickness of only one character to fit in the busy streets.
Recently, ...
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votes
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answers
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Lolololololololololololol
Let us take a break from the brain-wrecking questions and answer some of the simpler ones
You have recently read something extremely funny, and want to express your laughter to the world! But how can ...
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19
votes
46
answers
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Divisible strings
Task
Given a string s, output a truthy value if the ASCII code of each letter is divisible by the length of s, and a falsey ...
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votes
6
answers
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Surround a string with "friendliness pellets"
Input a String and surround it with a rounded rectangle of alternating "friendliness pellets".(0)
Sandbox
Idea originally from Lyxal.
Challenge
Given a ...
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8
votes
4
answers
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views
Find the index of reflection of a substring of a palindrome [closed]
Problem Statement:
You will receive a substring of a palindromic string. You must return the index of the substring which marks the point of reflection of the original string. You are only provided ...
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votes
20
answers
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Repeating pattern of empty lines
Write the shortest program or function that takes some text as input, and outputs either it or an empty line in a repeating pattern:
...
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12
votes
7
answers
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views
De-interleave log lines: HARD MODE
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 ...
- 9,791
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votes
13
answers
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views
Number chopping: Split a number into its digits [closed]
Number Splitting
Instructions
Oh no, my numbers have stuck together! Luckily, we can split them apart with code.
Your code should be a function that takes an integer input from stdin or as an argument....
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votes
8
answers
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Let's Decrypt It!
Note
This is the decryption challenge. The encryption challenge can be found here.
Challenge
The challenge is to decrypt a given string, using the rules as specified below. The string will only ...
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22
votes
20
answers
2k
views
Case invert your quine
Write a quine which attempts to invert the case of as many ascii characters in the source code as possible. For example in javascript:
...
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26
votes
6
answers
1k
views
Build an alphabetised polyglot
As TIO can show, every letter of the Latin alphabet is represented when it comes to languages. For every letter there is at least 1 programming language whose name begins with that letter. Your task ...
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votes
21
answers
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De-interleave log lines [duplicate]
You've inherited a server that runs several apps which all output to the same log.
Your task is to de-interleave the lines of the log file by source. Fortunately, each line begins with a tag that ...
- 9,791
12
votes
11
answers
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views
Remove partial matching duplicate lines and retain longest line
Write the shortest possible program to remove all partial matched duplicates from a list and only retain the longest lines. Sort order does not matter.
For following inputs, the intent is to search ...
14
votes
22
answers
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Mode length of a sentence
The task is simple. You are given a string with alphabetical words (say "Hello world, this are tests"). You have to return the mode of the lengths of ...
- 2,850
42
votes
141
answers
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Print X without X (robber's thread)
This is the robber's thread of a cops-and-robbers challenge. You can view the cop's thread here
A pretty common beginner style question is to print some string, but, there's a catch!, you need to do ...
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71
votes
155
answers
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views
Print X without X (cop's thread)
This is the cop's thread of a cops-and-robbers challenge. You can view the robber's thread here
A pretty common beginner style question is to print some string, but there's a catch! You need to do it ...
- 84.9k
17
votes
20
answers
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And and… and. And.?
Introduction:
Inspired by the Puzzling-stackexchange post with the same name, which I've answered four years ago:
Can you create a perfectly valid English sentence, which makes perfect sense, but ...
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28
votes
75
answers
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Average of your code
Inspired by this
Task
Your task is to output the average character of your code.
What is an average character?
Say we have a string golf().
We then take the ASCII ...
- 3,890
24
votes
26
answers
8k
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XOR two strings
Given two strings as input, return the result of XORing the code-points of one string against the code points of the other.
For each character in the first input string, take the code-point (e.g. for <...
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