techinplanet staffAsked By: Anonymous This is the link to this algorithm topic: my code time limit exceeded on test40, I thought for a long time but no good way, is there a good optimization method, may be ? mycode: typedef long long ll;...
Why does Android bond even when asked not to bond?
Asked By: Anonymous I have developed an application on an on-board device which allows a smartphone to be able to connect in secure BLE. Everything works fine but I notice that every time I do a "pairing" via...
python regex matching null group between characters
Asked By: Anonymous I have a set of selected characters, and I want to replace any char that is not in my selected characters with a whitespace. the problem is regex catches everything between my defined chars as a null...
Only allow whitespace after comma and restrict special characters in text field using regex
Asked By: Anonymous I am trying to restrict a user from being able to enter whitespace or hit the spacebar after characters (unless they enter a comma) as well as restrict all special characters except numbers and...
Docker-compose: how to use a hostname for a docker instance valid both from inside and outside?
Asked By: Anonymous I have a situation where we use docker-compose to run a database populated with test data during development. Backend programmer (me) runs just the database alone. Frontend programmer runs database +...
Take the dot product for each column with itself and store in new array dimension
Asked By: Anonymous I need to take the dot-product of each column with the transpose of itself, in a given 2D array. Currently, I am using loops and it is slow and ugly so I am wondering how to do this with pure array...
How to type a property in a interface according to keys of another property has unknown structure in TypeScript?
Asked By: Anonymous I used a module can do such thing function print(obj, key) { console.log(obj[key]) } print({'test': 'content'}, '/* vs code will show code recommendation when typing */') I want to have this feature...
Is there a way for me to input css arguments in css height property that are relative to the screen resolution?
Asked By: Anonymous So I am creating a website and whenever I need to input an image I need to rely on pre-resizing the image, using CSS results in the destruction of the original aspect ratio of the image… So I...
SQL : Max (), Groupby
Asked By: Anonymous So I have a table with columns MapID, CityFrom, CityTo and Distance and I want to get the the cities with the maximum distance travelled from each MapID. One MapID contains multiples cities and...
UDF with Dynamic Data Type
Asked By: Anonymous I am trying to write the udf that can remove few keys from Map. But the Map’s key and value type is not fixed, it can be String or Array or something else. How should I define such udf. I am...
GetStream creates same activity in different feeds
Asked By: Anonymous I built this piece of code to add tags to my tag feed. buildActivity = (model,obj) => { return { ...{ actor: `user:model.user`, verb: 'is', object: `model:${model.id}`, foreign_id: `model:${model...
Flutter run command fails only on Android
Asked By: Anonymous I’ve been having this problem since I’ve recently upgraded Flutter from 1.22 to 2.2. Every time I try to run the app flutter run the build fails. Now, this happens only on Android, so...