Lorenzo

Last seen: Today | Active since 2026

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Determine if x is a combination of m and n
Given positive integers x, m, and n, determine if x can be written as x = am + bn for any (non-negative) integers a and b. Your ...

5 hours ago

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Combine the digits to output numbers
input could be of any length e.g. 1. in1 = 1 in2 = 2 output = 12 2. in1 = 2 in2 = 1 in3 = 0 output = 210

9 hours ago

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Reepeating numbers in array
Repeating numbers in array In = [1 0 0 0 2 0 0 0 3 0 0 0 0 0 5 0 0 0 0]. Out = [1 1 1 1 2 2 2 2 3 3 3 3 3 3 5 5 5 5 5].

9 hours ago

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Self-similarity 2 - Every third term
Self-similar integer sequences are certain sequences that can be reproduced by extracting a portion of the existing sequence. Se...

9 hours ago

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Efficiency of a single phase Transformer
Calculate the efficiency of a single phase transformer whose KVA rating is A KVA, loading factor x,power factor p,full load copp...

9 hours ago

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Recursive triangle area
Given triangle 1 with sides of length a, b, and c. Triangle 2 is constructed within triangle 1 by bisecting each side. Triangl...

9 hours ago

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GJam 2014 China Rd A: Library Sorting (Small)
This Challenge is derived from <http://code.google.com/codejam/contest/2924486/dashboard#s=p2 GJam 2014 China Sorting>. This...

9 hours ago

Solved

Moving average (variable kernel length)
Find the moving average in a vector. The kernel length is a variable. For example x = 1:10 kernel_length = 2 would r...

9 hours ago

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Airline Ticket Mod7 Checksum
There are 13 digits in an airline ticket number. If an airline ticket number is valid, the 13th digit should be the remainder of...

10 hours ago

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Bouncing disk
A disk is placed in a rectangular room with dimensions a and b in a point with coordinates x0 and y0. The disk is given a startu...

10 hours ago

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Solve equation numerically
y'=y In order to solve equation using computer, numerical analysis are needed. 1st order Euler's method is one of the metho...

11 hours ago

Solved

I hope to lose weight healthily...
In order to reduce weight healthily, weight will be reduced by 4% every month. Please calculate how many months it will take...

11 hours ago

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Kurchan 4x4 - Optimal score
Related to Problem 1646, but bigger. Technically, all you need to do for this Cody problem is input a 4x4 matrix containing the...

11 hours ago

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¿Es una parábola?
Dados los datos de las magnitudes _*x*_ e _*y*_, crear una función que permita conocer si se trata de una parábola o no, indican...

12 hours ago

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Return all matrix elements except elements on diagonal
Consider a given Matrix A=[a b c; d e f; g h i] then return a row vector T such that it contains all the El...

12 hours ago

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Extract a specific part of matrix!
In the given matrix, extract element that have odd rows and column number. For example A=[1 4 2 3 5] B=extractodd(A);...

13 hours ago

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count to vector
Return a matrix of numbers of dimension K by N, where K = prod(v), and N=length(v). The rows count from a vector of ones up to v...

13 hours ago

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Make one vector from two others
You are given two vectors of equal length. Your task is to create a MATLAB script that will repeat all of the values in the fir...

13 hours ago

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Vector to 3-Column Matrix
Consider a vector *A* such as A = [1 2 3 3 4 5 6] Can you convert this vector to a three-column matrix like this: ...

13 hours ago

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Duplicate each element of a vector.
for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

13 hours ago

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sparse_matrix
You convert a vector to a sparse matrix. for example *x* =[1 2 3]; output will be *y* = [1 0 0 ...

13 hours ago

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Check p² = 24k + 1, p > 3, the 'golden prime squares' equation
Historical context In december 2023, I / Nicolas Douillet was working on prime squares properties and I found* the formula : ...

13 hours ago

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Volume of a sphere given its surface area
You just measured its surface area, that is the input.

13 hours ago

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How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for.

13 hours ago

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Complete hydraulic geometry relations
Hydraulic geometry relations express the velocity , width , and depth of a river as a function of the discharge (or flow) , whi...

13 hours ago

Solved

Pythagorean perfect squares: find the square of the hypotenuse and the length of the other side
Given the square root of a square number, *seed*, and a range, *n*, find the square number, *Z* as well as the other side, *y*, ...

15 hours ago

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Find left eigenvector of row stochastic matrix
Find the left eigenvector of the given stochastic matrix P that has eigenvalue 1. Normalize the vector so the sum of the entri...

15 hours ago

Solved

Effective Nuclear Charge

15 hours ago

Solved

ICFP2024 005: Lambdaman 1, 2, 3
The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship f...

15 hours ago

Solved

Convert array of decimal numbers into binary numbers array.
Convert an array of decimal numbers into binary numbers array. For example: x = [1 2 3 4 5 6 7 8]; result = [1; 10; 11;...

15 hours ago