Solved


Number Puzzles - 015

23 giorni ago

Solved


Number Puzzles - 016

23 giorni ago

Problem


Easy Sequences 48: Factorial Prime Big Omega Summation
For an integer the prime big omega , is defined as the total number prime factors of , with duplicity allowed. So, if , since ...

23 giorni ago | 1 | 3 solvers

Solved


Factorions: Numbers that equal the sum of the factorials of their digits
From Wikipedia: _A factorion is a natural number that equals the sum of the factorials of its decimal digits_ For example: ...

25 giorni ago

Solved


Dudeney Numbers: Numbers which are the cube of their decimal sum
From Wikipedia: _A Dudeney number is a positive integer that is a perfect cube such that the sum of its decimal digits is equa...

25 giorni ago

Solved


Cos Function
x is the abscissa. find the absolute value of cosine of -x and the same value with changed sign.

25 giorni ago

Solved


Smallest distance between a point and a rectangle
Given two points *x* and *y* placed at opposite corners of a rectangle, find the minimal euclidean distance between another poin...

26 giorni ago

Solved


Clockwise or Counterclockwise
Given a list of 2-d points defining the vertices of a polygon, determine whether these points are sorted clockwise. The input...

26 giorni ago

Solved


Great Circle Distance
Find shortest between two points on a ball given their azimuthal and polar angles (in degrees) as well as the radius of the sphe...

26 giorni ago

Solved


Clock Hand Angle 1
Given a time in HH:MM:SS, find the smallest angle (in degrees) between the hour and minute hand

26 giorni ago

Solved


Number Puzzles - 017

26 giorni ago

Solved


Number Puzzle - 082

26 giorni ago

Solved


Number Puzzle - 083

26 giorni ago

Solved


Number Puzzle - 084

26 giorni ago

Solved


Are you in or are you out?
Given vertices specified by the vectors xv and yv, and a single point specified by the numbers X and Y, return "true" if the poi...

26 giorni ago

Solved


Number Puzzle - 094
Give an example of three unique numbers a, b, and c such that concatenating a^2, b^2, and c^2 is equal to d^4 for an integer d.

27 giorni ago

Solved


Number Puzzle - 097

27 giorni ago

Solved


Number Puzzle - 098

27 giorni ago

Solved


Number Puzzle - 093

27 giorni ago

Solved


Joining Ranges
You are given a n-by-2 matrix. Each row represents a numeric range, e.g. x = [0 5; 10 3; 20 15; 16 19; 25 25] contains...

27 giorni ago

Solved


Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...

27 giorni ago

Solved


Return a list sorted by number of consecutive occurrences
Inspired by Problem 38 by Cody Team. Given a vector x, return a vector y of the values in x sorted by the number of CONSECUTIVE...

27 giorni ago

Solved


First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero i...

27 giorni ago

Problem


Easy Sequences 47: Boxes with Prime Edges
This is related to problem "Easy Sequences 41: Boxes with Integer Edges". However, here we will be investigating a smaller-sized...

27 giorni ago | 1 | 4 solvers

Problem


Easy Sequences 46: Semi-prime Leap Year Pairs
A semi-prime is a positive integer that has only and exactly prime factors. Here is a list of the first few semi-primes:. We...

28 giorni ago | 0 | 0 solvers

Solved


Easy Sequences 45: Second Derivative of Inverse Polynomial Function
The inverse of a function, is the function , that reverses . That means that if , then . For example, the function to convert ce...

29 giorni ago

Solved


Number Puzzle - 023

circa un mese ago

Problem


Easy Sequences 45: Second Derivative of Inverse Polynomial Function
The inverse of a function, is the function , that reverses . That means that if , then . For example, the function to convert ce...

circa un mese ago | 1 | 3 solvers

Solved


Whole Number Concatenator
Write a function that concatenates whole numbers. For example: numcat(111,222) should return 111222 numcat(1,2,3,4,5) s...

circa un mese ago

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