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...
Project Euler: Problem 4, Palindromic numbers
Remove NaN ?
Say something funny
Too Many Zeros, Dump Them!
Sum of series IV
Integer Sequence - II : New Fibonacci
Graph Algorithms - 1 : Length of the largest closed path
Fermat's last theorem - again
Cat, Meowcat and Concatenation
all possible subsets of set
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