Given an unsigned integer x, find the largest y by rearranging the bits in x
Right and wrong
Determine Whether an array is empty
Rotate input square matrix 90 degrees CCW without rot90
Doubling elements in a vector
Renaming a field in a structure array
Swap the first and last columns
Which values occur exactly three times?
Find all elements less than 0 or greater than 10 and replace them with NaN
Get the area codes from a list of phone numbers
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