Linked Questions

15
votes
26answers
2k views

Make every other vowel uppercase

Given a lower case string. Ex: s = 'abcdefghijklmnopqrstuvwxyz' The goal is to make every other vowel uppercase. Desired output here: ...
44
votes
160answers
12k views

Scream very loudly

Write a script that outputs A to stdout infinitely. There shold be no newlines or seperators between the characters Standard loopholes apply This is code-golf. ...
18
votes
16answers
3k views

Stack Exchange Answerer

Oof! You've been coding the whole day and you even had no time for Stack Exchange! Now, you just want to rest and answer some questions. You have T minutes of free time. You enter the site and see N ...
21
votes
20answers
2k views

Reorder a matrix, twice

You are given a square \$n \times n\$ matrix \$A\$, and a list (or vector) \$u\$ of length \$n\$ containing the numbers \$1\$ through \$n\$ (or \$0\$ through \$n-1\$). Your task is to reorder the ...
97
votes
45answers
31k views

Implement the Thanos sorting algorithm

The sorting algorithm goes like this: While the list is not sorted, snap half of all items (remove them from the list). Continue until the list is sorted or only one item remains (which is sorted by ...
40
votes
43answers
5k views

Find the needle in the haystack

Given a rectangular haystack of size at least 2x2 composed of all the same printable ASCII characters, output the location (counting from the top-left) of the needle which is a different character. ...
21
votes
55answers
6k views

Sort odd numbers first

Rearrange a given list such that all the odd numbers appear before all the even numbers. Besides for this requirement, the output list may be in any order. The input will only contain integers, but ...
41
votes
43answers
4k views

Decode the string

This is my first challenge on ppcg! Input A string consisting of two different ascii characters. For example ABAABBAAAAAABBAAABAABBAABA Challenge The task is ...
18
votes
32answers
2k views

Fill out my Bubble Sheet

Today was AP exam registration day at my school, and while I was meticulously bubbling in the pages and pages of information required, the idea for this challenge hit me. So, given a string of letters ...
24
votes
61answers
9k views

Find the longest word in an array

Your challenge is to take an array of strings and output the longest string in the array. So for ["tiny", "small", "bigger", "biggest"] the output would be ...
27
votes
30answers
1k views

Element-wise string multiplication

Inspired by this challenge (thanks @cairdcoinheringaahing for the title!), your task is to take two printable ASCII strings and multiply them element-wise with the following rules. How does it work? ...
28
votes
41answers
3k views

Subtract the next numbers

Description Subtract the next P numbers from a N number. The next number of N is N + 1. Look at the examples to get what I mean. Examples: ...
87
votes
164answers
15k views

Print a Tabula Recta!

The Tabula Recta (sometimes called a 'Vigenere Table'), was created by Johannes Trithemius, and has been used in several ciphers, including all variants of Bellaso's Vigenere cipher and the Trithemius ...
46
votes
19answers
10k views

Can Pac-Man Eat This String?

In the arcade version of the game, Pac-Man eats pac-dots. However, in this challenge, he's hungry for alphanumeric characters and punctuation in a string. Your task is to create a function that feeds ...
23
votes
5answers
734 views

Follow incomplete directions

A friend of yours has given you directions to the best restaurant in town. It's a series of left and right turns. Unfortunately, they forgot to mention for how long you need to go straight ahead ...

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