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 :-)
Volume of this donut
Project Euler: Problem 6, Natural numbers, squares and sums.
Is this matrix orthogonal?
The sum of individual numbers...
Flip the vector from right to left
Elements with highest local average
Diagonal of a Spiral Matrix
Integer Sequence - II : New Fibonacci
Let's see how peculiar we can get
longest common semi-substring
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