Divide Chocolate

Good day! Hope your workday has started on the right note. Currently in the USA we are observing the Daylight saving time which this year ends on Sunday, November 7, 2021. Today is Thursday October 14, 2021 so we have a little over one month for the time to get back to normal.

I see the positive sides of daylight savings time during summer. In my opinion, in the USA, daylight savings should start on Memorial Day and end on Labor Day. The reason for this is that schools and universities tend to be off during such period.

For college students it should not make much of a difference, but for K-12 students it does. Most children use public school buses to commute to school. Depending on the grade they attend, they may be picked up in the morning around 07:00 AM. I am always up before 06:00 AM. I am a morning person. After fixing breakfast I wake up my wife so we can have the first meal of the day together.

After we are done with breakfast, she helps me with the dishes. After rinsing the dishes and putting them in the dishwasher I shower, get dressed, and head down to my office to work on my first 2-hour block of the day. This includes weekends in which I work one or at most two blocks. On regular workdays I tend to do four to five blocks a day.

For the past week or two, when I head down to my office, the day is very dark, to the point that I have to turn on lights. It happens that when I am heading down is about 07:00 AM and I see kids that are already riding public school busses. They had to walk from home to the bus stop while it is quite dark. I thought that children were first in our society. It seems I am wrong. Go figure!

In the month that we have to wait before daylight savings ends, it will be dark close to 08:00 AM. So why is this happening? Well, the thought is that if the school day ends with some light, parents will be more prone to head out and grab a bite which is good for business. I guess children do not have much homework in these days. Things have changed since I attended K-12. Continue reading “Divide Chocolate”

Find N Unique Integers Sum up to Zero

The weather is slowly changing in the Twin Cities of Minneapolis and St. Paul. Days are getting shorter and the temperature is going down. Winter appears to be around the corner. That said; the vegetation in the area is not as dry as other years. Hopefully we will have a not so cold winter.

In addition, today is October 12th, the actual day that Christopher Columbus discovered America. The day was celebrated yesterday in the USA. Note that Christopher Columbus landed in what is today Central America and went south. He did not put a foot on North America.

I continue watching and experimenting with the contents of the on-line course on Python. I am currently in Lesson 4. In addition I am reading the associated book “Intro to Python for Computer Science and Data Science: Learning to Program with AI, Big Data and The Cloud 1st Edition” by Paul Deitel and Harvey Deitel. Continue reading “Find N Unique Integers Sum up to Zero”

Merge Sort Revisited

Good morning! Hope your day has started on the right note. Yesterday was quite hectic for me. Hopefully the day will go as smooth as possible. Continue reading “Merge Sort Revisited”

Tower of Hanoi

My end of the working day is coming to an end. Tomorrow is Friday! It has been a long week.

This week I spent some time refreshing and learning more about recursion. One of the problems is named Tower of Hanoi. Long time ago I received as a present a wooden board with three pegs and ten discs. If you check the link I just mentioned, on the top right corner in the Wikipedia article you can see a very similar board to play the game.

You can use the following article Program for Tower of Hanoi as inspiration on how to solve the problem.

Continue reading “Tower of Hanoi”

Short Palindrome

Good morning! It is a cold and dark Sunday morning in the Twin Cities of Minneapolis and St. Paul in Minnesota. The silver lining is that the forecast for today calls for a high temperature of 80F. Perfect day for grilling outside and perhaps drink one or two adult beverages.

After finishing my 2-hour block, my wife and I will complete our grocery shopping by stopping by Trader Joe’s in St. Paul. It seems that lately we are doing groceries every other weekend. That saves around five gallons of gasoline every month.

It is too early (dark and cold) for box elder bugs to be out and about. As it gets warmer they seem to appear from nowhere. We are planning on grilling outside so they will become a nuisance. In the afternoon hours most homes in our area have a few hundred box elder bugs on the walls. As long as we do not have to interact with them, let them be. Continue reading “Short Palindrome”

Database Sharding

Good day software developers and engineers. Today is Wednesday and it seems it is going to be a sunny day in the Twin Cities of Minneapolis and St. Paul. Hope the weather cooperates in your neck of the woods.

I continue to read and experiment with the contents presented in the on-line course Introduction to Python Fundamentals: Lesson 02 by Paul Deitel published by Pearson Education, Inc. As a matter of fact, tomorrow I will start with lesson 03. So far I am pleased to be reviewing and learning new things during the process. Continue reading “Database Sharding”

Two Sum – Revisited

It is a very nice sunny day in the Twin Cities of Minneapolis and St. Paul. Today is March 29, 2021 and the high for the day is going to be around 70F. My wife and I talked about grilling chicken for lunch but it is a work day and the process of grilling, eating and cleaning might take a couple hours. That is fine on a holiday.

I decided to attempt to solve all problems in a section of LeetCode. It seems that several problems that I have solved before fall into this collection. I will take a problem from each category a day. Perhaps on weekends I will look at two. Continue reading “Two Sum – Revisited”

Singleton Threads

My wife and I enjoy cooking and of course eating the food we prepare. Yesterday we decided to making from scratch empanadas. Different cultures around the world have come up with similar implementations. I am not a historian so I am not sure if all foods covered in some type of dough and then baked or deep fried, are derived from a single version or instance (the Computer Science shows up).

In the US we refer to a similar object with the name turnover. My wife’s family comes from Spain. According to this article the name empanada was mentioned in a book published in Catalan as early as 1520. It seems that one should be able to find the best recipes for empanadas in and around Barcelona. Next time we are in that area will make sure to have some empanadas.

My parents came from Italy. As a matter of fact I am first generation not born in Genoa.  In Italy there are similar foods named calzone and Stromboli both of which we had on my parents table quite often while growing up.

While searching the web with Chrome, I found this site which lists some foods related to empanadas. Empanadas enclose some type of food in dough while a food that is quite common in the US, presents the food in an open face version. That is what pizzas are all about. You can read more about pizza here. The modern pizza was created in Napoli, Italy, and yes my wife and I have been to the restaurant that claims to have created the Neapolitan pizza.

So back to yesterday, my wife made about seven pounds of empanada stuffing (beef, onions, eggs, garlic, and many other spices). I made a batch of dough (flour, yeast, olive oil, and a few more ingredients) which was enough to make about 18 empanadas. While we were preparing the food, one of my wife’s nice stopped by. Apparently she was interested in joining us for lunch. While we were chatting, my son calls. One thing and the other and he (plus wife and two sons) requested some empanadas for Sunday. We where forgetting that two of my in-laws and spouses were stopping by around 02:00 PM for lunch.

Panic mode set in. We had plenty of stuffing, but not enough dough. I made a second batch. As the empanadas were taking shape, I made a third batch. Of course the dough did not have enough time to rise, but it had to be done. When all was set and done, we ended with around six dozen empanadas. We were baking them in batches so things were moving along.

Our formal guests arrived so we all had empanadas with lime, beer, and wine. On Friday, my wife had prepared a couple gypsy arms stuffed with “dulce de leche”. We forgot to serve the salad but I had more than enough to eat and drink. We did not have a chance to walk outside yesterday. That said; I checked my fitbit before going to bed. I had about 10,500 steps. I was pleasantly surprised with the final tally.

Today we are going out for Chinese food. We do not wish to cook. Continue reading “Singleton Threads”

Removing TensorFlow Warning Messages

On Revisiting TensorFlow™ I mentioned an issue with warning messages regarding SSE instructions. I understand the reason but would like to get rid of them. They clobber the output making it difficult to follow what the program is doing. Continue reading “Removing TensorFlow Warning Messages”

Bash on Ubuntu on Windows

I have been working and developing software on Linux, UNIX and Windows for a while. On the Microsoft platforms I started on MS DOS. Last week I was talking with a colleague and he mentioned that while still in BETA, Microsoft has something called Bash on Ubuntu on Windows. I do enjoy the simplicity and power of the Linux shells. I decided to give the Microsoft BETA software a run. Continue reading “Bash on Ubuntu on Windows”