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Find all prime factors of the input
Given an input x, find its all prime factors. Return the vector with all factors in ascending order. Efficiency is the key here...

4 years ago

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Determine whether one vector is a subset of another
While bumbling through a pair of problems in the Number Theory group, I wrote code to determine whether a vector is a subset of ...

4 years ago

Solved

Chain multiplication - 01
Say, you are given two matrices - A (shape= 3*4) and B(shape = 4*5). If you multiply these two matrices, the resultant matrix w...

4 years ago

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Sort Non-zeros
Consider 0s in a vector creates a break-point. sort all the sub-arrays created by those break points. For example, a = [3, 4, 1...

4 years ago

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Force and Motion 2
Two robots are pulling on an object in opposite directions. One robot pulls with a force of F1 Newtons and the other with a forc...

4 years ago

Solved

Which Char Array has the greater decimal value
Given to character arrays, determine which array has the greater decimal value. 'Hello' --> 72 + 101 + 108 + 108 + 111 = 500 ...

4 years ago

Solved

Easy Sequences 18: Set Bits of Triple Summations
The function S(n) is defined by the following triple summations: The double brackets mean that th...

4 years ago

Solved

Easy Sequences 63: Base-63 Arithmetic Functions
In this exercise we are required to implement 7 basic 'unsigned integer' arithmetic functions in base-63: to63(x) - convert...

4 years ago

Problem

Easy Sequences 68: Factorial Rectangles
I'll celebrate my comeback to Cody with this one easy problem... ---------------- The rectangle below is special: ...

4 years ago | 1 | 8 solvers

Solved

Classify product/digit-sum sequences
Cody Problem 53120 involved a sequence in which a term is computed by multiplying the previous two terms and adding the digits o...

4 years ago

Solved

CARDS PROBLEM
Read my mind and tell me the card number that I have now in my hands.

4 years ago

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Create a secure password
You are joining the MATLAB Central platform to solve a question on Cody. The signup page requires you to input an id and a passw...

4 years ago

Solved

Create a Multiplication table matrix...
Create a product table in this format: P = [ 1 2 3 4 5; 2 4 6 8 10; 3 6 9 12 15; 4 8 12 1...

4 years ago

Solved

Calculating the total earnings of a factory
The row vector, prods contains the number of various products manufactured per hour. The second row vector, prices holds values ...

4 years ago

Solved

~(*|/)
Return three quarters of n without using addition, subtraction, multiplication or division.

4 years ago

Solved

Fraction of a fraction of a ...
One sort of brainteaser problem is a math problem wherein you are asked what the given fraction of a fraction of a ... number is...

4 years ago

Solved

String math
You will be given a string that describes a simple math equation. Your job is to determine if the value of the equation is equal...

4 years ago

Problem

Easy Sequences 67: Project Euler Problem 1 - Not Again!!!
You know the drill... Given two integers and , with , find the sum of all positive integers below , that are multiples of any ...

4 years ago | 2 | 3 solvers

Solved

Determine the kth Primitive Root of Unity

4 years ago

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Mean ignoring NaNs
Define a function that behaves in the same way as mean(x) and mean(x,d) except that it ignores NaNs (unless all of the values be...

4 years ago

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Perl 4: unshift
_This is part of a series of perl function which were very helpful for many perl programmers. Could you implement it in Matlab?_...

4 years ago

Solved

Calculate the Surface Area of an Ellipsoid

4 years ago

Solved

Sum of all the divisors of n

4 years ago

Solved

Big Integer Sqrt
You will be given a big integer, you should return the square root of it. input: '16' output: '4' have fun!

4 years ago

Solved

Replace pattern 0 1 0 and 1 0 1
Find and replace a pattern in a row of zeroes and ones. * Find 1 0 1 and replace it with 1 1 1 * Find 0 1 0 and replace it w...

4 years ago

Solved

determine the sum of decimal part for given matrix
determine the sum of fraction part for the given matrix

4 years ago

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Pad zero between every adjacent values of the vector.
you are given a vector x. you have to make an output vector y with zeros padded between every adjacent values of x. e.g x: ...

4 years ago

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Find unique number in input
Find value that occurs in odd number of input elements.

4 years ago

Solved

Free-time Equation
Given a 7-day week, an *_nc_* -number of *_tc_* -hour classes, *_ta_* -hours awake in a day, and *_tw_* -hours that you work in ...

4 years ago

Solved

Determine Fundamental Solution of Pell Equation
Given, a positive value (d), determine the fundamental solution [x, y] of the Pell equation: x^2 - d*y^2 = 1. Provide character...

4 years ago