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 :-)
Find the two-word state names
Back to basics 9 - Indexed References
Make a simplified barcode
Length of the hypotenuse
Signal Processing Basic - 1. Stretch a signal
Graph Algorithms 3: Number of Connected Components
longest common semi-substring
Let's see how peculiar we can get
Beauty of Parentheses
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