Back and Forth Rows
Solve the Sudoku Row
Project Euler: Problem 6, Natural numbers, squares and sums.
Sum of odd numbers in a matrix
Area of a triangle
Get the area codes from a list of phone numbers
Make a checkerboard matrix
Find all elements less than 0 or greater than 10 and replace them with NaN
Find relatively common elements in matrix rows
Find the two-word state names
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