Find the sum of the elements in the "second" diagonal
Return the first and last characters of a character array
Reverse the elements of an array
Create an n-by-n null matrix and fill with ones certain positions
Legend of Zelda - Rupee Count (Item Purchase)
Scrabble Scores - 13
Lights Out 4 - 5x5, 8 moves
Mechanical Advantage of a Gear Train
Scrabble Scores - 4
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