Reverse String II

The end of my workday is approaching shortly. Hopefully I will be done with this post soon; otherwise will finish it tomorrow.

Earlier today I was snooping around in the LeetCode website. For the first time I ran into a page that shows every submission you make for a problem. Perhaps I am mistaken, but it seems that the site counts as attempts every submission you make. For example, you ran your first pass and let’s say it is accepted but you want to learn more by improving performance. You may even generate one or more implementations. It seems that they count against you. This seems awkward to me. If I am trying to learn I should not be penalized. If my assumption is incorrect, PLEASE LEAVE ME A NOTE BELLOW SETTING ME STRAIGHT. Continue reading “Reverse String II”

Find Peek Element

Good day! Hope you are doing well. Today is July 13th, 2021. We are approaching midsummer. Not sure where time is going.

As I mentioned a few posts ago, I attempted some daily problems posted by LeetCode. At this time I am somewhat busy so I have missed a few. Hopefully in a month or two I will have enough time to work on a problem a day; at least the easy and medium. The others may take a couple days. Continue reading “Find Peek Element”

Find Leaves of Binary Tree

Hi gals and guys! It is Friday afternoon and we have a long weekend ahead. Hope you enjoy Independence Day in the USA. The weather in my neck of the woods will be in the lower 90’s F thru Monday. On Tuesday the temperature will drop a few degrees and it seems we might receive some precipitation in the Twin Cities of Minneapolis and St. Paul.

On a separate note, it appears that the UPS attached to one of my computers is starting to fail. One of the internal batteries does not seem to be charging as it should. I guess it is time to replace the unit. I believe I purchased the UPS about 10 years ago. OK, I just ordered a replacement on Amazon. The UPS should arrive on Friday this week. Continue reading “Find Leaves of Binary Tree”

Largest Odd Number in String

Good day! Hope your day has started on the right note. The weather has been behaving somewhat strange this season. We started with very hot days and little precipitation. Such conditions caused many patches of dry grass to appear on lawns all over the Twin Cities of Minneapolis and St. Paul. In the past few days it has been raining on and off. That has helped lawns. I checked the weather forecast for today and my wife and I were planning on having breakfast and then head out for a walk. The forecast was off. We had precipitation for the first few hours, so after breakfast I showered, got dressed and went down to my home office.

In a previous post I mentioned that I was going to participate in a weekly programming contest. The contest was scheduled for last Saturday. When I woke up we had rain and thunderstorms. In the past decade or so I have lost two KVM switches. After replacing the second switch I decided to shutdown all my computers when there is a thunderstorm in the area. I canceled my participation in the contest. Will check if there is one this weekend. Will let you know my findings. Continue reading “Largest Odd Number in String”

Count Construct – Tabulation

Earlier today I read an article commenting about how the high temperatures are rising all over the USA. In Arizona and Nevada the forecasted highs should be about 115F and 112F respectively. The average temperature for a human adult is around 98F. That is quite warm if you ask me.

Today in the suburb in the Twin Cities of Minneapolis and St. Paul where I reside, we woke up with 72F. At some point we might be getting some rain. The high is forecasted to be 91F and we are still in spring 2021.

My wife and I have breakfast and then head out for a walk. We like to get the workout in first thing in the morning. After returning home, I watered some plants that were replaced outside a week or so ago. I have been informed that I need to water them 3 to 4 days a week for a month or so until the plants adapt to their current location; so far, so good. We do need some rain. The lawns in our area are starting to show some brown spots. We can see and hear the sprinklers in the morning, but seems that laws need additional water. A few good down pours each month would take care of the brown spots. Based on NOAA’s forecast, it is going to be a dry and hot summer for most parts in the USA.

Yesterday I mentioned that I requested a callback from a Delta agent. Based on the information at hand, I was expecting the callback in about two hours. I did receive the call. At that time I had performed enough searches on the web that I had solved the issue before talking with the agent. All is well at this time. Continue reading “Count Construct – Tabulation”

Producer and Consumer – Part 4

We are quickly approaching the end of another work week. In the Twin Cities of Minneapolis and St. Paul it appears that most businesses are back to normal. The only exception is that many office workers are still working from home and people is required to wear a mask when in public spaces. Most people that want to be vaccinated against COVID-19 have done so. We need to get most (never generalize) people to comply in order to achieve herd immunity.

This is the fourth installment of the sequence of posts related to a producer and consumer connected via TCP/IP. In this post we will not add functionality to the producer or consumer. We will explore some functions and methods that we have at our disposal when encrypting and decrypting files using the Advanced Encryption Standard. Continue reading “Producer and Consumer – Part 4”

Clone Graph in Java

It is Friday morning and I am getting on Skype to chat with my best friend. We met when we were attending elementary school. We chat most Fridays but sometimes something comes up and we need to postpone for the following week. All friendships need care and time to maintain. The call occurs at 06:00 AM so hopefully I will have time to get this post done before the call.

The weekend is going to be the warmest of the year so far. We will be around 60F. Most people are going to use their grills or smokers. I believe we will join the group.

I received a message associated with a previous post. I will reply to it later today. The message suggests some improvements to my code. First of all I appreciate the message and suggestion. Please note that in general I want to get a solution up and running and accepted by the web site (e.g., HackerRank, LeetCode). If the solution is too slow, in general I try a second and in some occasions a third approach. I am not going to say that I have the best possible solution. I just want to make sure I describe my approach and you can see my thought process. Continue reading “Clone Graph in Java”

Implement Trie (Prefix Tree)

It is Wednesday morning and the cleaning crew is at our place making lots of noise. Typically they show up on Fridays but due to personal issues they requested to move the appointment. They do an excellent job. If you live in the Twin Cities of Minneapolis and St. Paul and are in need of a good cleaning service, please let me know. I will pass your information so you can get in touch with them or vice versa. I value privacy. Continue reading “Implement Trie (Prefix Tree)”

Encode and Decode TinyURL in Java

It is Sunday morning again. It seems that time is flying by faster than ever. Yesterday I worked all morning (about 6 hours). My daughter in law was going to visit her family and my son had to stay home. They were expecting a delivery and installation of a piece of exercising equipment. The delivery was scheduled between 03:00 PM and 06:00 PM.

Earlier that day I had made some pizza dough. I used to knit the dough by hand. In the past couple years I have switched to using our Kitchenaid mixer. I can take all the ingredients, mix them and put the dough to rise in about 25 minutes. I do it while chatting with my wife during breakfast. She just watches me switch tasks while having yogurt with homemade granola and warm milk with a triple espresso. We both like to drink coffee. Continue reading “Encode and Decode TinyURL in Java”