This is how I would like to be able to write my code. MethodB is just a dummy here, all we care about is that it’s returning type T. public static class ClassA<T> where T: struct, INumber<T> { public static T MethodA( T[][] matrix, T[] vector) { T result = T.Zero; int m = matrix.Length;… Read More How to convert numbers into generic type?

I’m trying to learn python through sololearn in the mobile app but somehow the app only accepts its own codes or mine is wrong. If I run the code on pythontutor the code gives the desired output but sololearn keeps saying the code is wrong. The question has to convert an input to an integer… Read More sololearn says code is wrong, python tutor says otherwise

For example I have a class with below json format [ { "name": "a", "detail": [ "1", "2", "3" ] }, { "name": "b", "detail": [ "2", "3", "4" ] } ] how to change grouped it based on the detail? [ { "detail": "1", "name": [ "a" ] }, { "detail": "2", "name": [… Read More Kotlin – switching object detail based on group by

I have a class customInt, which looks something like this: class customInt: def __init__(self, value): self.value=int(value) def __add__(self, other): return foo(self.value+other.value) # do some other stuff obj=foo(1.23) Is it possible to create an operator/attribute/property/… to cast the object obj to a float, so that it’s possible to cast the class with float(obj)? The aim of… Read More Type conversion of custom class to float

I have this code snippet down below public class hackkerankstuff { public static void countSort(List<List<String>> arr) { //taking the input List<List<String>> and storing it as a Hashmap HashMap<String, String> p = new HashMap<>(); for (List<String> mapping : arr) { p.put(mapping.get(0), mapping.get(1)); } //Converting data type of key to int Map<Integer, String> map2= new HashMap<>(); for(Map.Entry<String,… Read More How to convert key values of Hashmap from String to int

Consider the following program: using namespace std; int main() { uint8_t b = 150; int8_t a = -10; if (a>b){ cout << "greater" << endl; } else{ cout << "less" << endl; } return 0; } In Online C++14 Compiler it prints less. The same result I get in Compiler Explorer with x86-64 gcc 12.2… Read More uint8_t and int8_t conversion

I am trying to concatenate every element in a slice of &strs (&[&str]) into a single owned String. For example, I want to turn &[‘Hello’, ‘ world!’] into "Hello world!". I tried to do this by converting the slice into an iterator, then mapping over the iterator and converting each &str into an owned String,… Read More Concatenate a slice of `&str`s into an owned `String`

I’ve exported my location data from Google but one thing they have in the resulting json is that both latitudes and longitudes are stored as integers. For example: -37785037 # latitude 144939405 # longitude Since I know where I roughly was at that time it’s clear that the actual coords are -37.785.. and 144.939…, i.e.… Read More Converting int to float with known precision

I have User type like below interface IUserMongo { name: string; age: number; address: string[]; nested: { name: string; sayYes: boolean; rrr: 1; }; } I want to derive the following type interface IUserMongo { name: number; age: number; address:number; nested: { name: number; sayYes: number; rrr: number; }; } code is working except for… Read More Typescript flattens array types to their element type not working inside Mapped Types

I am having the folllowing instruction x1,y1,x2,y2,x3,y3,xp,yp = map(float, input().split()) When I am trying to execute it for a fractional value, e.g. 8/3, I get an error message. x1,y1,x2,y2,x3,y3,xp,yp = map(float, input().split()) 0.1 0.2 -8 -16.67 0 0.1 8/3 1 # output Traceback (most recent call last): File "<pyshell#42>", line 1, in <module> x1,y1,x2,y2,x3,y3,xp,yp =… Read More ValueError: could not convert string to float: '8/3'