Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.
Make a Palindrome Number
Back to basics 11 - Max Integer
Angle between Two Vectors
Recycled Numbers (CodeJam Qualification Round 2012)
Mirror, mirror on the wall, who is fairest of them all?
Find the path through the cell
Rank of magic square (for beginners)
Sum of big primes without primes
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