Coloring [0 1 0 1 1 0 2] seems to work for test case 2, giving it a chromatic number of 3 rather than 4.
yes.. corrected. Thanks for pointing it out :-)
Return the largest number that is adjacent to a zero
surface of a spherical planet
Is this matrix orthogonal?
Arrange vector in ascending order
Find similar sequences
weekday and month
Let's see how peculiar we can get
Integer Sequence - II : New Fibonacci
Yet Another Path Finder
I want eval
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