#### How to Reverse Letters in Kotlin

May 13, 2022

The challenge Given a string str, reverse it omitting all non-alphabetic characters.

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#### How to Get the ASCII Value of Character in Kotlin

May 12, 2022

The challenge Get the ASCII value of a character. The solution in Kotlin Option 1:

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#### How to use Coroutines in Kotlin

June 17, 2021

Coroutines are a way to handle multithreading in Kotlin, read more about it from the official docs:

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#### The Pair Type in Kotlin

June 16, 2021

val pair: Pair<String, Int> = "myKey" to 2 What is a Pair Type?

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#### Deconstruction in Kotlin

June 11, 2021

There are times when you need to extract an object into a number of variables.

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#### What is a Unit in Kotlin?

June 9, 2021

Unit corresponds to the void keyword in Java. What is a Unit in Kotlin?

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#### How to declare a Function in Kotlin?

June 8, 2021

Functions are reusable pieces of code, often called Blocks, that as the name suggests, act as building blocks to piece together a program.

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#### The differences between Val and Var in Kotlin

June 7, 2021

Among all the many keywords that Kotlin comes with, there exists val and var.

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#### Build a pile of Cubes in Kotlin

March 30, 2021

The challenge Your task is to construct a building which will be a pile of n cubes.

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#### Which x for that sum in Kotlin

March 29, 2021

The challenge Consider the sequence U(n, x) = x + 2x**2 + 3x**3 + .

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#### Invert values in Kotlin

March 27, 2021

The challenge Given a set of numbers, return the additive inverse of each.

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#### Moduli number system in Kotlin

March 25, 2021

The challenge A number system with moduli is deﬁned by a vector of k moduli, [m1,m2, ···,mk].

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#### Smallest possible sum in Kotlin

March 24, 2021

The challenge Given an array X of positive integers, its elements are to be transformed by running the following operation on them as many times as required:

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#### Floating-point Approximation in Kotlin

March 23, 2021

The challenge Given a semi-inclusive interval I = [l, u) (l is in interval I but u is not) l and u being floating numbers (0 <= l < u), an integer n (n > 0) a function f: x (float number) -> f(x) (float number) we want to return as a list the n values:

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#### Multiplication table in Kotlin

March 22, 2021

The challenge Create an NxN multiplication table, of size provided in parameter.

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#### Strip Comments in Kotlin

March 21, 2021

The challenge Complete the solution so that it strips all text that follows any of a set of comment markers passed in.

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#### Experimenting with a sequence of complex numbers in Kotlin

March 20, 2021

The challenge Consider the sequence S(n, z) = (1 - z)(z + z**2 + z**3 + .

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#### Sums of Parts in Kotlin

March 18, 2021

The challenge Let us consider this example (array written in general format):

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#### Diophantine Equation in Kotlin

March 17, 2021

The challenge In mathematics, a Diophantine equation is a polynomial equation, usually with two or more unknowns, such that only the integer solutions are sought or studied.

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