Hello folks. I wanted to share with you my tale of working through the problems with Advent Of Code. It is a nice tale and there are a few things I learned from it, especially in Go, since I used that solve all of the problems. So, let’s get started. Solving the problems The most important lesson I learned while doing these exercises was, how to solve these problems. A couple of them were simple enough to not have to over think it, but most of them got very tricky....

Hello Folks. Today I would like to share with you my little tale of refactoring my solution to Advent Of Code Day 13. It’s a lovely tale of action, adventure, drama, and comedy. Let’s being with my first iteration of the problem. package main import ( "bufio" "fmt" "math" "os" "strconv" "strings" "github.com/skarlso/goutils/arrayutils" ) var seatingCombinations = make([][]string, 0) var table = make(map[string][]map[string]int) var keys = make([]string, 0) //Person a person type Person struct { // neighbour *Person name string like int } func main() { file, _ := os....

Hi folks and a Happy new Year! Today, I would like to show you some interesting things you can do with channels. Consider the following simple example. package main import "fmt" func main() { generatedPassword := make(chan int, 100) correctPassword := make(chan int) defer close(generatedPassword) defer close(correctPassword) go passwordIncrement(generatedPassword) go checkPassword(generatedPassword, correctPassword) pass := <-correctPassword fmt.Println(pass) } func checkPassword(input <-chan int, output chan<- int) { for { p := <-input //Introduce lengthy operation here // time....

Hello Folks. This is just a quick post on the topic and a reminder for myself and everybody to ALWAYS USE []BYTE INSTEAD OF STRINGS. []Byte is marginally faster than a simple Strings. In fact, I would say using []byte should be the standard instead of strings. Sample code: package solutions import "fmt" const ( //INPUT input INPUT = "1321131112" //LIMIT limit LIMIT = 50 ) //LookAndSay translates numbers according to Look and Say algo func LookAndSay(s string, c chan string) { charCount := 1 look := "" for i := range s { if i+1 < len(s) { if s[i] == s[i+1] { charCount++ } else { look += fmt....

Hello Folks. This is just a quick post on the topic and a reminder for myself and everybody to ALWAYS USE []BYTE INSTEAD OF STRINGS. []Byte is marginally faster than a simple Strings. In fact, I would say using []byte should be the standard instead of strings. Sample code: package solutions import "fmt" const ( //INPUT input INPUT = "1321131112" //LIMIT limit LIMIT = 50 ) //LookAndSay translates numbers according to Look and Say algo func LookAndSay(s string, c chan string) { charCount := 1 look := "" for i := range s { if i+1 < len(s) { if s[i] == s[i+1] { charCount++ } else { look += fmt....

Hello everybody! I wanted to do a sort post about word frequency count. I did it many times now and I was curious as how a recursive solution would perform as opposed to looping. So I wrote it up quickly and added a few benchmarks with different sized data. First…. The code: var freqMap = make(map[string]int, 0) func countLettersRecursive(s string) string { if len(s) == 0 { return s } freqMap[string(s[0])]++ return countLettersRecursive(s[1:]) } func countLettersLoop(s string) { for _, v := range s { freqMap[string(v)]++ } } Very simple....

Hello folks. Here is a little something I’ve put together, since I’m doing it a lot. Go Development Environment If I have a project I’d like to contribute, like GoHugo, I have to setup a development environment, because most of the times, I’m on a Mac. And on OSX things work differently. I like to work in a Linux environment since that’s what most of the projects are built on....

Hello Folks Welcome to my new blog. I decided to move away for a number of reasons, but setting up a static page blog site is very cool if you don’t directly use a database. Since posts are just posts and I have a different way of hosting images, this really was just a matter of time. And Hugo / Github pages provided the tools which made this move possible....

Hi folks. So, I was playing around and created a client for JIRA written in Go. It was nice to do some JSON transformation. And sending POSTS was really trivial. It’s still in it’s infancy and I have a couple of more features I want to implement, but, here is the code. package main import ( "bytes" "encoding/json" "flag" "fmt" "io/ioutil" "log" "net/http" "os" "github.com/BurntSushi/toml" ) var configFile = "~/.jira_config.toml" var parameter string var flags struct { Comment string Description string IssueKey string Priority string Resolution string Title string Project string } //Issue is a representation of a Jira Issue type Issue struct { Fields struct { Project struct { Key string `json:"key"` } `json:"project"` Summary string `json:"summary"` Description string `json:"description"` Issuetype struct { Name string `json:"name"` } `json:"issuetype"` Priority struct { ID string `json:"id"` } `json:"priority"` } `json:"fields"` } //Transition defines a transition json object....

Hello folks. Today, I present to you the One Hundred Day Github Challenge. The rules are simple: Minimum of One commit every day for a Hundred days. Commit has to be meaningful but can be as little as a fix in a Readme.md. Doesn’t matter if you are on vacation, there are no exceptions. There. Are. No. Exceptions. If you fail a day, you have to start over. No cheating. You only cheat yourself, so this is really up to you....