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Oliver Warlow


Last seen: 5 days ago

Rolls-Royce Plc.

325 total contributions since 2019

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Return a list sorted by number of occurrences
Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

5 days ago

Solved


Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

5 days ago

Solved


Find the palindrome
Given the string a, find the longest palindromic sub-string b. So when a = 'xkayakyy'; you should return b = 'kayak';

5 days ago

Solved


Find the two most distant points
Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

5 days ago

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De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

5 days ago

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Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

6 days ago

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Metamorphosis
Inspired by problem <http://www.mathworks.com/matlabcentral/cody/problems/866-community-problem-500 866>. Can you make your c...

12 days ago

Solved


Alphabetize by last name
Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

26 days ago

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Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

26 days ago

Solved


Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

26 days ago

Solved


Volume of Spherical Shell
In three-dimensional space, a spherical shell can be constructed from two concentric spheres. Determine the volume of a spheric...

26 days ago

Solved


Leap Year
According to Gregorian Calender(which is in use now, in many countries),decide whether a given year is a leap year or not. Give...

1 month ago

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Remove the air bubbles
Given a matrix a, return a matrix b in which all the zeros have "bubbled" to the top. That is, any zeros in a given column shoul...

1 month ago

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Love triangles
Given a vector of lengths [a b c], determines whether a triangle with non-zero area (in two-dimensional Euclidean space, smarty!...

2 months ago

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THE CALCULATOR OF LOVE
In honor of Valentine's Day, program a love calculator that figures out the percentage of compatibility between two people using...

2 months ago

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Narcissistic number ?
Inspired by Problem 2056 created by Ted. In recreational number theory, a narcissistic number is a number that is the sum of ...

2 months ago

Solved


Encode Roman Numerals
Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

2 months ago

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Calculator spelling - Letters to Numbers
Using the numbers on a calculator, and rotating the display 180 degrees, many words can be spelled. In particular, the following...

2 months ago

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

3 months ago

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Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

3 months ago

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Find square of given number
Find Square of any number

6 months ago

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Square root of number
Square root of given number.

6 months ago

Solved


Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

6 months ago

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Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

6 months ago

Solved


Is My Wife Wrong?
Answer the question. (see also <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right Problem 149: Is my ...

7 months ago

Solved


Matlab Basics II - Intervals
Write a function that takes an interval from a to b, and divides it into 5 parts example: a = 1, b = 2 output = 1 1.25 ...

7 months ago

Solved


Leaking?
Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molecular weight. A b...

7 months ago

Solved


Cannon Ball
Given g (acceleration due to gravity) and desired altitude x, find the minimum ground velocity of a cannon ball to reach x.

7 months ago

Solved


Geometric series
Find the sum, given the first term t1, the common ratio r, and number of terms n. Examples If input t1=1, r=1, n=7 the...

7 months ago

Solved


vectorization in N
For a given integer n (n>1), compute the sum f (i) (1 <= i <= n) where f (i) = 1 if n is odd and 2 otherwise.

7 months ago

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