A good opportunity to implement a hashtable: lots of collisions without it.
A re-post of Solution 1137054, because that one doesn't appear in the list of solutions, for some reason (I'm not sure why).
Find the alphabetic word product
Check to see if a Sudoku Puzzle is Solved
Volume of this donut
Project Euler: Problem 4, Palindromic numbers
5 Prime Numbers
Find files with extension ext in the current directory
Can you beat the lottery again (for hardcore coder) ?
BLOCK x3 (Version 3)
Find the path through the cell
Permute diagonal and antidiagonal
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