Competitive Programming Challenge Solutions

Solutions especially in "modern languages", Swift and Kotlin.

Stacks

Swift doesn't have a dedicated Stack struct. Let's create our own Stack struct.

Queues

Swift doesn't have a dedicated Queue struct. Let's create our own Queue struct.

Dictionaries

Collection of key-value pairs where you can select the type of key, Int, String, Any, etc.

Proportional Width or Height

You can use percentages for the width and height of your view with GeometryReader.

How to display a dictionary in JSON format

Cómo convertir la primera letra a mayúscula de un String

Binary Search

A search algorithm that finds the position of a target value within a sorted array.

Generar Matriz Caracol, Spiral Matrix

Generar una matriz caracol o Spiral Matrix es un problema clásico en programación, especialmente cuando estamos iniciando a utilizar Arrays y una matriz es simplemente un array bidimensional.