In the test suite, I use fopen to create new files. The task is to find their filenames.
Back and Forth Rows
Replace NaNs with the number that appears to its left in the row.
Get the area codes from a list of phone numbers
Given an unsigned integer x, find the largest y by rearranging the bits in x
Cody Computer Part 3 - Detect the graphic card used on Cody Computer
Sophie Germain prime
Set some matrix elements to zero
Generate a string like abbcccddddeeeee
Create a matrix from a cell
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