Make a square matrix with this shape. For n=4
1 1 0 0
1 0 1 0
0 1 0 1
0 0 1 1
So many choices
Project Euler: Problem 8, Find largest product in a large string of numbers
Sum of diagonal of a square matrix
We love vectorized solutions. Problem 1 : remove the row average.
Multiply by 3
Derivative of polynomial
Altitude of locations on the earth
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