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 :-)
Sums with Excluded Digits
Clock Hand Angle 1
How many monitors are connected ?
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Approximation of Pi (vector inputs)
Cat, Meowcat and Concatenation
longest common substring : Skipped character version
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