I am a coder

"A computer. And you can play with it? Wow!"

I first saw a personal computer in a holiday trip to the USA sometime in the late 1970s. It was an amazing sight and my intuition told me that I would live forever around computers. This was science-fiction stuff for a scrawny Venezuelan kid of that era.

I had an early start at that time: my father travelled overseas a lot for business, and he loved buying gadgets you could not find in Venezuela.

At one point or another my father had a HP-35 calculator, a Pulsar watch, a first-generation Odyssey console (which he sold shortly after, to my eternal regret), a digital-chess board and all kinds of Super-8 movie-making gadgetry.

I had a Radio Shack Electronic Project Kit. Laugh at me, but I loved that board.

I had read The Best of Creative Computing from cover to cover by the time I got my first computer, a Sinclair ZX-81. It was my 12th birthday and I was hooked into solving coding problems.

You'd be wise to test what you find in the Internet before you use it. All code examples are provided "as-is".
"Elegant code does not exist: it either solves a problem or it does not."

Hackerrank Challenges in Python 3

Reverse an array of integers Cats and a mouse Number line jumps Array left rotation Between two sets Birthday chocolate Viral advertising Apple and orange Utopian tree Angry professor Magic square The hurdle race Day of the programmer Designer PDF Viewer Bill division (Bon appetit) Cut the sticks Sherlock and Squares Repeated string Climbing the leaderboard Medium Encryption Matching strings (Sparse arrays) Save the prisoner Time in words 3D surface area Medium Cavity map Delete a node Structures Hackerrank in a String