This is a sub problem related to this problem:
If vector, v, has only whole numbers [0 1 2 ... 9], then it can be turned into a base ten number as follows:
[3 4 2 9] ---> 3429
[1 3 5] ---> 135
Make this conversion.
Remove NaN ?
Find the sum of the elements in the "second" diagonal
Count up then down
Basic arrays operations.
Getting the indices from a vector
Find perfect placement of non-rotating dominoes (easier)
Poker Series 03: isFullHouse
Project Euler: Problem 6, Natural numbers, squares and sums.
Project Euler: Problem 8, Find largest product in a large string of numbers
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