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votes
0answers
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Challenging you n-queen with AI algorithm [on hold]

This challenge is very simple.You have to write backjumping algoirthm for n-queens problem in your desired language .If you don't know backjumping algorithm ,see wikipedia.If you don't know n-queens ...
22
votes
23answers
3k views

Upside-Down Pyramid Addition…REVERSED!

Upside-Down Pyramid Addition is the process of taking a list of numbers and consecutively adding them together until you reach one number. When given the numbers ...
3
votes
0answers
81 views

lexicographically sorted list of index [closed]

Given a drawing of the letter shoot system, where an existing piece of pipe is marked with a *, and an empty spot is marked with a ., your task is to compile a lexicographically sorted list of index ...
3
votes
2answers
364 views

Golfing Newton's Method

I have the following code which I've written to emulate Newton's method for deriving the square root of a number: ...
16
votes
11answers
2k views

Ethiopian Multiplication

This question is inspired by this answer. Coincidentally, I used to use Ethiopian Multiplication when I was a kid, but had never known the name of the method until recently. Ethiopian multiplication ...