In addition to the previous problem, in this case
a 2 by 2 block will also be considered as a winning move.
x=[ 1 1 2 1 2
1 1 2 2 1
2 1 2 2 1
2 2 1 1 2]
here, there is a 2-by-2 block of 1 and 2.
surface of a spherical planet
Return elements unique to either input
Make a random, non-repeating vector.
Getting the absolute index from a matrix
Sub-sequence - 01
ZigZag - 01
Generate Golomb's sequence
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