In test 1 why the iron in x(4,1) did not moved to the top !?
x(4,1) is equidistant to both upper and lower magnet, that's why...
Count from 0 to N^M in base N.
Project Euler: Problem 2, Sum of even Fibonacci
Removing rows from a matrix is easy - but what about inserting rows?
Beginner's Problem - Squaring
Construct a precedence graph from a code segment
Elements with highest local average
all possible subsets of set
Integer sequence - 2 : Kolakoski sequence
Calculate the h-index
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