For given positive integer n, take factorial of that number. How many trailing zeros does it have?
Example: factorial(11) = 39916800
Its last zero-digit count is 2.
Optional: Can you make an efficient algorithm for a very large n?
Construct a string from letters and counts
02 - Vector Variables 4
Generate this matrix
Beginner's Problem - Squaring
Make a rainbow matrix (follow-up to checkerboard matrix)
The last non-zero digit of a factorial
Fractal: area and perimeter of Koch snowflake
Number of paths on a 3d grid
Number of paths on a n-dimensional grid
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