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Boggle Word Checker in Java
March 31, 2021
The challenge Write a function that determines whether a string is a valid guess in a Boggle board, as per the rules of Boggle.
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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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Reverse the bits in an integer in Java
March 28, 2021
The challenge Write a function that reverses the bits in an integer.
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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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Spring Boot no main manifest attribute, in
March 26, 2021
You have created a ./target/.jar and have tried to run it using java -jar <app>.
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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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pt-online-schema-change Add Index
March 19, 2021
Percona has a great toolkit that allows you to perform schema changes on a MySQL or MariaDB database without any downtime, it works by creating a new table with the same schema, making the changes to it and applying triggers for insertion, deletion and all updates, all while performing your valuable schema updates for you!
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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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Matrix Addition in Java
March 16, 2021
The challenge Write a function that accepts two square matrices (N x N two dimensional arrays), and return the sum of the two.
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Numbers that are a power of their sum of digits in Java
March 15, 2021
The challenge The number 81 has a special property, a certain power of the sum of its digits is equal to 81 (nine squared).
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Integer triangles in Java
March 14, 2021
The challenge You have to give the number of different integer triangles with one angle of 120 degrees which perimeters are under or equal a certain value.
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Minimum path in squares in Java
March 13, 2021
The challenge You’re given a square consisting of random numbers, like so:
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Pascal’s Diagonals in Java
March 12, 2021
The challenge Create a function that returns an array containing the first l digits from the nth diagonal of Pascal’s triangle.
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