[Solved] D-lang being faster than C++? [closed]

find() seems to be heavily used and they are very different in D and C++ implementations: int find(int x) { return ds[x] = (x == ds[x] ? x: find(ds[x])); } vs: long long find(long long node) { if(parents[node] == node)return node; else return find(parents[node]); } find() in D modifies array (looks like some kind of … Read more

[Solved] Draw male and female gender symbols in iOS

An example for drawing the female symbol. First, make a Layer using UIBezierPath to draw it: import UIKit class FemaleLayer: CAShapeLayer { override var frame: CGRect { didSet{ self.draw() } } private func draw() { self.lineWidth = 20.0 self.fillColor = UIColor.clear.cgColor self.strokeColor = UIColor.black.cgColor let path = UIBezierPath() let sideLength = fmin(self.frame.width, self.frame.height) let circlesRadius … Read more

[Solved] What does “->” mean in javascript? [closed]

This isn’t an operator – it’s inside a string which is being logged. You can identify it by the quotes enclosing it: console.log(‘find_program_result.js -> mpU_onIdentified’); // quotes –^——————————————^ 2 solved What does “->” mean in javascript? [closed]

[Solved] Random in Java often generating same value

The Birthday Paradox predicts that the probability of duplicates in random numbers is much higher than you’d think. For example, it predicts that, with a mere 23 random people, there’s a greater than 50% chance of two of them have the same birthday. By the Pigeonhole Principle, it takes 367 people for there to be … Read more

[Solved] Create enum class to assign Index [duplicate]

Use a dictionary better, they are exactly meant to store a value corressponding to a given object. Dictionary<string, int> dict = new Dictionary<string, int>() { {“Jack”, 1 }, {“Alice”, 2 }, {“Steven”, 3 }, {“Alex”, 4 }, {“Katrin”, 5 }}; string name = “Jack”; int value = dict[name]; // returns 1 1 solved Create enum … Read more

[Solved] Android Studio “class” or “interface” expected

You should put the constructor inside the class, like this: public class Galaxy { String galaxyName; int galaxySolarSystems; int galaxyPlanets; long galaxyColonies; double galaxyLifeforms; int galaxyFleets; int galaxyStarships; public Galaxy(String name, int solarSys, int planets) { galaxyName = name; galaxySolarSystems = solarSys; galaxyPlanets = planets; galaxyColonies = 0; galaxyLifeforms = 0; galaxyFleets = 0; galaxyStarships … Read more

[Solved] What is below syntax of in C#? [closed]

The line signifies a variable declaration. A declaration in C# has the following syntax: <modifiers> <data_type> <variable_name>; The first two words in the line you provided are modifiers, they are used for modifying declarations. public is an access modifier static specifies that a member belongs to the type itself instead of to a specific object. … Read more

[Solved] MPI: parallelize a buffer over and over [closed]

MPI_INIT() and MPI_FINALIZE can only be called once per program, as your error hints at. This old answer from half a year ago sketches how to get MPI to run some parts of your program in parallel: int main(int argc, char *argv[]) { MPI_Init(&argc, &argv); MPI_Comm_size(MPI_COMM_WORLD,&numprocs); MPI_Comm_rank(MPI_COMM_WORLD,&myid); if (myid == 0) { // Do the … Read more

[Solved] Name of method same as class, what does it mean?

From MSDN A constructor is a method whose name is the same as the name of its type. Its method signature includes only the method name and its parameter list; it does not include a return type. The following example shows the constructor for a class named Person. public class Person { private string last; … Read more

[Solved] Compiling Issue with C++ [closed]

U made some mistakes here : You have to write your entire main code inside int main() syntax for using cin is cin >> not cin << You dont need to put char before calavg.str() because it’s already declared as stringstream Do not use using namespace std. It is a bad practice that could cause … Read more

[Solved] how to provide value to parent class constructor where parent constructor have more argument than child class from static void main in c#? [closed]

how to provide value to parent class constructor where parent constructor have more argument than child class from static void main in c#? [closed] solved how to provide value to parent class constructor where parent constructor have more argument than child class from static void main in c#? [closed]

[Solved] SQL Query result to Java Array [closed]

It would basically go something like this: ResultSet rs = statement.executeQuery(yourSQLQueryString); // Get your ResultSet from Database rs.last(); // Place the record pointer onto the last row int counter = res.getRow(); // Get the row number (there’s your count) rs.first(); // Place the record pointer onto the first row for the while loop String[] myArray … Read more

[Solved] Changing C to MIPS and bitwise or [closed]

I suppose you mean ori $t1, $t0, 25? That would be the equivalent. You can find tons of references about MIPS with a Google search. A good example would be this MIPS instruction reference. 1 solved Changing C to MIPS and bitwise or [closed]