Java

Integer triangles in Java

March 14, 2021 #Java

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 …

Minimum path in squares in Java

March 13, 2021 #Java

The challenge

You’re given a square consisting of random numbers, like so:

var square = [
    [1,2,3],
    [4,8,2],
    [1,5,3]
];

Your job is …

Pascal’s Diagonals in Java

March 12, 2021 #Java

The challenge

Create a function that returns an array containing the first l digits from the nth diagonal of Pascal’s triangle.

n = 0 should …

Maximum Contiguous Sum in Java

March 11, 2021 #Java

The challenge

Given an unsorted array of integer values, find the maximum positive sum of any contiguous range within the array.

An array containing …

Fibonacci Streaming in Java

March 10, 2021 #Java

The challenge

You’re going to provide a needy programmer a utility method that generates an infinite sized, sequential IntStream which contains …

Base-2 in Java

March 9, 2021 #Java

The challenge

In this challenge you must convert integers numbers from and to a negative-base binary system.

Negative-base systems can accommodate all …

Unique digits sequence in Java

March 8, 2021 #Java

The challenge

Consider the following series:

0,1,2,3,4,5,6,7,8,9,10,22,11,20,13,24...There is nothing special between numbers `` and 10.

Let’s …

Palindrome integer composition in Java

March 7, 2021 #Java

The challenge

The palindromic number 595 is interesting because it can be written as the sum of consecutive squares: 6^2 + 7^2 + 8^2 + 9^2 + 10^2 + …

Count IP Addresses in Java

March 6, 2021 #Java

The challenge

Implement a function that receives two IPv4 addresses, and returns the number of addresses between them (including the first one, …

Shortest Knight Path in Java

March 5, 2021 #Java

The challenge

Given two different positions on a chess board, find the least number of moves it would take a knight to get from one to the other. The …

All Balanced Parentheses in Java

March 4, 2021 #Java

The challenge

Write a function that makes a list of strings representing all of the ways you can balance n pairs of parentheses

Examples …

Human readable duration format in Java

March 3, 2021 #Java

The challenge

Your task in order to complete this challenge is to write a function which formats a duration, given as a number of seconds, in a …