What is this digit operation?
0 -> 0
1 -> 9
121 -> 9
44 -> 6
15 -> 5
1243 -> 7
Make a checkerboard matrix
Maximum running product for a string of numbers
Back to basics 17 - white space
04 - Scalar Equations 2
Find and replaces spaces from a input string with *
I lost the criteria...
BLOCK x3 (Version 1)
Numbers spiral diagonals
Recycled Numbers (CodeJam Qualification Round 2012)
Two functions (to be sure)
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