... and the avocado thing
This is a two-part answer. First, it establishes a non-trivial upper bound of 5. Then a solution is given that proves 5 is also the lower bound.
There is only one 3x3 magic square, up to symmetry:
294
753
618
So in order to have seven magic squares in a Sudoku, we require seven 5s which aren'...
Rock-and-roll founding father Chuck Berry sadly passed away today.
Consider the chorus of his famous song "Johnny B. Goode":
Go, go
Go Johnny go, go
Go Johnny go, go
Go Johnny go, go
Go Johnny go, go
Johnny B. Goode
(There are other ways it has been punctuated but the above will serve for the...
class BTreeNode{
int *keys; // An array of keys
int t; // Minimum degree (defines the range for number of keys)
BTreeNode **C; // An array of child pointers
int n; // Current number of keys
bool leaf;
}
I try to code Btree in python.I use self.child=[[]]*n for **c but when I want to a...
Challenge
Given a string with any characters a-z or A-Z, return an 'encrypted' string, where all characters are replaced by the character next to it on a qwertyuiop keyboard.
Case (uppercase, lowercase) does not matter.
The input will only have characters a-z and A-Z.
Shortest code in bytes ...
A simple FizzBuzz using strings.
Given
1 word or phrase (string)
2 unique characters
Output
The word or phrase with each occurrence of the first character replaced with fizz and each of the second character replaced with buzz
Rules
The first letter in both Fizz and Buzz must remain capit...
user165474
user165474
user165474
user165474
user165474
Anonymous
user165474
Print the Previous Program
answer-chainingcode-challenge
Specifications:
You must print the exact text of the previous answer without ever having a sequence of more than 5 letters in a row in your program that also show up in the previous answer (prevents hardcoding). Your program must only us...
This is a Code Golf challenge.
Flood is a game in which the player is presented with a game board such as this:
On each turn, you choose a colour (on the link above, by clicking a square containing that colour), and the cell in the top-left corner is filled with that colour - this colour will ...
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For whatever reason, PPCG tends to get a lot of off-topic questions, generally about code-troubleshooting. Maybe it's because our help-center is inaccurate. Or maybe it's simply because we're a large-ish site with a lot of activity but very few questions per day, so each off-topic question is mor...
Anonymous
Anonymous
I hear a lot that new programming languages are dynamically typed but what does it actually mean when we say a language is dynamically typed vs. statically typed?
Anonymous
Anonymous
Anonymous
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Take a positive integer n as input and output the two factors of that number that are closest to its square root. Note, we're not talking about prime factors.
As an example: 945 has the prime factors: {3, 3, 3, 5, 7}. There are many ways to represent 945 with only two factors, for instance: {135...
Just a simple code golf function for fun, intentionally left open with few rules to see what creativity comes up.
Input: An integer representing the area of a rectangle.
Output: Two integers representing the side lengths of the rectangle that have the least perimeter for the area. (In any orde...
