You've got a pretty good ELO, and are brave for publishing it. How often do you play?
Sum all integers from 1 to 2^n
Convert a vector into a number
Spot the outlier
Magic is simple (for beginners)
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
Find Missing Number
I want to know everything!
Mirror, mirror on the wall, who is fairest of them all?
Mysterious digits operation (easy)
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