Since Cody, I dislike for-loops, but your solution is way simpler than my own algorithm. Mission accomplished...
Nevertheless, I would hope for a non-looped piece of code. Let's see in phase 3.
Project Euler: Problem 7, Nth prime
Spot the outlier
Set the array elements whose value is 13 to 0
Wheat on a chessboard pt 2
Number of Even Elements in Fibonacci Sequence
Create a random vector of integers with given sum
Only once: cleaning up your columns
Wrap a vector, but insert NaN's at the wrap-positions.
Wayfinding 5 - Travel contour
Number of problems
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