Solutions to light problems like this enable scaling up ideas to heavy, complex algorithms.
Add two numbers
Return the 3n+1 sequence for n
Test for balanced parentheses
Remove the small words from a list of words.
Give a matrix that matches itself when rotated
Crossing to Kissing - Untangle the Lines
Find an inscribed square on a closed curve
Make a run-length companion vector
Is It a Snake?
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