Reverse Only Letters

Definitely the weather is changing in the Twin Cities of Minneapolis and St. Paul. Last night my wife and I slept with a windows in the kitchen opened just a crack. This morning the upstairs temperature was at 69F. During winter we keep the upstairs at 68F. Chances are that this evening will sleep with the windows closed and the heater on.

I need to update my post previous post Count Negative Numbers in a Sorted Matrix. I made an incorrect statement and would like to generate an update. If you are curios, I left the body of the post as it was. I generated an opening note. Continue reading “Reverse Only Letters”

Masking Personal Information

Earlier this morning while having breakfast with my wife, around 06:30 AM she noted that the day was quite dark. I replied that this is normal this time of the year, especially because Daylight Savings in the United States was extended since the last update.

Around 07:00 AM, after showering and getting dressed, I descend to my home office. Around 10:00 AM I prepared coffee for my first break of the working day. It was sunny and windy with a temperature in the high 40’s. Hopefully the weather will remain like that for the rest of the day.

While browsing the LeetCode web site problem 831 Masking Personal Information called my attention. I develop software and systems that deal with medical records and images which need to be de-identified. This problem seemed to contain a very reduced set of data that needs to be anonymized. Continue reading “Masking Personal Information”

Student Attendance Record I

Woke up today at 04:20 AM. It was raining. Spent some time reading and on this blog and at 06:00 time to make the donuts (actually breakfast).

Since I had not much time I did a search on LeetCode problems using the string “recursion”. Problem 551. Student Attendance Record I came up. I did not see the need to use recursion and the problem does not specify to use it either. Continue reading “Student Attendance Record I”

Transform Strings

It is Sunday morning in the Twin Cities of Minneapolis and St. Paul. Woke up around 04:30 AM and spent the next couple hours working on Machine Learning with Big Data. It is a Coursera course. Have one more week to complete this course; so far so good. After preparing and having breakfast with my best half, return to my computer. Continue reading “Transform Strings”