> Looking for a simple, effective a minimum execution time solution.
> 
> For a vector as:
> 
> c(0,0,1,0,1,1,1,0,0,1,1,0,1,0,1,1,1,1,1,1)
> 
To transform it to the following vector without using any loops:

> (0,0,1,0,1,2,3,0,0,1,2,0,1,0,1,2,3,4,5,6)
> 
Appreciate any suggetions.

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