kaf | Modern CLI for Apache Kafka , written in Go | Pub Sub library
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Kafka CLI inspired by kubectl & docker.
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kaf Examples and Code Snippets
Lines of Code : 13License : Permissive (MIT License)
Copyfunction findKSmallest(collection, k) {
if (!collection || !Array.isArray(collection)) {
throw new Error('Invalid / missing collection');
}
// create a MinHeap using the collection
const mh = new MinHeap(collection);
const result = []; Community Discussions
Trending Discussions on kaf
QUESTION
Given an array of lowercase strings A[] of size N, determine if the strings can be chained together to form a circle. A string X can be chained together with another string Y if the last character of X is same as first character of Y. If every string of the array can be chained, it will form a circle.
For eg for the array arr[] = {"for", "geek", "rig", "kaf"} the answer will be Yes as the given strings can be chained as "for", "rig", "geek" and "kaf"
Example 1:
...ANSWER
Answered 2021-Feb-23 at 12:49- Node for every letter.
- Directed edge (u, v) for each word, u is the first letter of the word, v is the last letter.
And that's it, this is enough. A path in this graph represents a chain of words. (If we need to reconstruct it, we can save the words alongside the edges. It won't affect the complexity.
The construction of this graph costs us O(n) since it has 26 vertices and n edges.
Observation: if the graph isn't strongly connected, there can't exist a cycle over all its edges. This check can be done in a time O(V + E) by Tarjan's algorithm. Since the number of edges corresponds to the number of words we have, this is O(n) for our purpose. (Or most likely much faster since we have only 26 vertices if we take the a-z alphabet)
Finding the Euler cycle:Observation: As we mentioned a path in this graph is a chain of words. We are looking for a cycle that would traverse all the edges. This is a well researched problem of finding an Euler cycle.
Since the graph is strongly connected, the Euler cycle exists as long as all degrees in the graph are even. Checking these edges can be done in a time linear with the number of vertices, so it does nothing to the complexity since there are only 26 of them . If we were to go and find the circular chain, the things would be a bit more difficult - however it can be done in O(E) by for example Hierholzer's algorithm.
Since the question was only a yes/no decision, finding the cycle shouldn't be necessary.
Note: Since there was the comment about words that start and end with the same letter: these won't change the result since every one of them adds one single-node loop to the graph, increasing its degree by 2.
QUESTION
Hello friends tell me how to handle larges array in app I have 9 different types array list in every list 22 words is sound and images.Images store in assets folder size 1.5 mb around only and sound comes from firebase cloud storage problem is that when app is load it slow down my app performance please tell me how can optimise it when run it show me
...ANSWER
Answered 2020-Sep-10 at 09:44You can use Sliver widget instead of using ListView.builder. ListVew wideget will build all widget at once, whereas by using Sliver widget you can build widgets when user scroll the screen. Refer the sample code below.
QUESTION
I have a file with html and javascript. It show sum of values against arabic alphabets entered in text box. You can check sample by entering text like ا ب ج د ح و ز then it will show you sum of values against these numbers at bottom. Please tell me how can I make result text and result value as h1 and also a box behind result which is calculate by +sum; at end of script like this image.link of image as i want to show result.
...ANSWER
Answered 2020-Aug-07 at 10:04This is what you need? It's just matter of html/css styling
QUESTION
I am trying to get Debezium to send my CDC events to Kinesis and the service seems to start but there are errors, and it doesn't seem to be sending anything to Kinesis. I was following this setup guide on the Debezium site:
https://debezium.io/documentation/reference/1.2/operations/debezium-server.html
Here is my config file:
...ANSWER
Answered 2020-Jul-18 at 12:31You need to specify debezium.source.database.history property for the mysql connector. Its default value is io.debezium.relational.history.KafkaDatabaseHistory, so for non-Kafka deployments please set one of the following values:
io.debezium.relational.history.FileDatabaseHistory(along withdebezium.source.database.history.file.filenameproperty);io.debezium.relational.history.MemoryDatabaseHistoryfor test environments.
QUESTION
Just like this tutorial Working with Images in Markdown Posts and Pages; I am trying to load a blog post's image from my markdown(frontmatter) to my template header
...ANSWER
Answered 2020-Apr-20 at 21:24Found out I had curly braces around my gatsby-image import import { Img } from "gatsby-image"
Removing them got it working. Thanks
QUESTION
I have 10,000 characters length of xml text and I have to parse out the variable name and value next to it.
...ANSWER
Answered 2020-Mar-10 at 01:15While you should consider parsing HTML/XML I'm always dipping into Notepad++ to clean up data. You may need a few goes it this but to throw you something that may help...
https://regex101.com/r/uAPi97/1
Now the above is pretty much based on getting all the lines of...
QUESTION
I have an SVG font generated with FontForge from a TTF, and I've isolated out the characters I am interested in.
...ANSWER
Answered 2019-Nov-10 at 13:51This is how I would do it: I would save the glyphs as symbols. Please observe that the symbols have a viewBox attribute. This is allowing me to resize the glyphs as needed.
Also I've transformed the paths transform="scale(1,-1) translate(0,-1700)".
Thank you very much to @MoshFeu for this comment:
It should be rotated like this:i.stack.imgur.com/oC6qn.png – Mosh Feu
I'm saving the symbols in an svg element with width="0" height="0" and position:absolute;. This way the svg element with the definitions is not interfering in the layout. Now you can use the glyphs with a element giving them the size and the position you need:
QUESTION
I have this compound view ArticleView,
When I replace the root LinearLayout with merge the view is not visible on my test device, nor the emulator. Why does this happen?
ArticleView.kt:
ANSWER
Answered 2019-Jul-10 at 14:46It's probably because you're losing your root parameters:
QUESTION
I am having some trouble working with initializing my data so that I can call specific values by their keys...
This is my code so far:
...ANSWER
Answered 2018-Dec-07 at 19:22As Medali has said, you can use regular expression to get the data you want and separate it properly. Something along the lines of;
QUESTION
I am trying to write a code that will take in json values from Kafka and output them to a .csv file. The issue is that, for grades, the values have either science and math OR just english as nested objects.
This is what the data looks like:
{'id': 0, 'name': 'Susan', 'lastName': 'Johnsan', 'grades': {'science': 78, 'math': 89}}
{'id': 1, 'name': 'Mary', 'lastName': 'Davids', 'grades': {'english': 85}}
However when I run my code I keep getting the error TypeError: string indices must be integers.
...ANSWER
Answered 2018-Nov-13 at 14:12It looks like you have a typo - at least in the code that you pasted here. There is an extra double quote after the lastName key.
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