ChrisR

Last seen: Today | Con actividad desde 2015

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I teach courses in water resources and environmental fluid mechanics.

Programming Languages:
MATLAB
Spoken Languages:
English
Pronouns:
He/him

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Wheatstone bridge
Determine if a set of resistors maintain Wheatstone bridge equilibrium

1 día hace

Resuelto

Organic Chemistry
Determine the names of the organic component formed with carbon and hydrogen. For example, if n=1 the name is methane

1 día hace

Problema

Find the closest geyser prime
My wife and I celebrated our honeymoon and our recent anniversary in Yellowstone and Grand Teton National Parks. After returning...

1 día hace | 0 | 0 solvers

Problema

Remove the diagonal of a square matrix
Some Cody problems ask solvers to remove columns (e.g., 7), and others ask solvers to remove rows (e.g., 44033). Write a funct...

3 días hace | 0 | 0 solvers

Resuelto

Convert RGB to Grayscale
Convert a 3 element RGB array to its correspoding grayscale pixel (a scalar) *Hint: a formula exists!

13 días hace

Resuelto

Palindrome Checker
Check to see if a given string is a palindrome (a word, phrase, or sequence that reads the same backward as forward). Output sh...

17 días hace

Resuelto

Reverse a string
Return a string with the characters in reverse order from a given input string Ex: my_str = "Ciao" function should output "...

17 días hace

Resuelto

Sum All Positive Elements
Output a scalar that is equal to the sum of all positive elements in a given vector/matrix. For Example: The sum of all positi...

17 días hace

Resuelto

Diagonal Product of A Square Matrix
For a matrix A, calculate the product of its diagonal elements. * Assume all input matrices are square & corresponding element...

17 días hace

Problema

Sum the reciprocals of polygonal numbers
As explained in Cody Problem 60571, a polygonal number is the number of dots arranged in the shape of a regular polygon. For exa...

alrededor de 1 mes hace | 0 | 4 solvers

Resuelto

Determine which fields have been modified in a structure
Given two input structures (s1, s2), determine which field values have been modified in s2 compared to s1. Your output should be...

alrededor de 1 mes hace

Resuelto

ICFP2024 001: Lambdaman 6
The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship f...

alrededor de 2 meses hace

Resuelto

ZigZag - 04
Given a matrix, print all its elements in the spiral form (clockwise direction). For example, a=[16 2 3 13 ...

alrededor de 2 meses hace

Problema

List primes of the form xy+z
Consider three consecutive integers , , and . When is the number prime? For example, if or , then the results are 17 and 37, ...

alrededor de 2 meses hace | 0 | 7 solvers

Resuelto

Interval Compression
Given a set of integers, the task is to create a list of closed intervals where each interval includes its endpoints. For exampl...

alrededor de 2 meses hace

Resuelto

Perimeter of a Koch snowflake
A Koch snowflake is an iteratively generated (fractal) shape built out of successively smaller equilateral triangles by followin...

alrededor de 2 meses hace

Resuelto

AZPC Oddly Triangular: Small N Part 1 of 5
AZPC created the Oddly Triangular contest on 9/7/22. The challenge is to find the longest sequence of N odd digits such that sum...

alrededor de 2 meses hace

Problema

Find polygonal numbers that are Blum integers
A polygonal number is the number of dots arranged in the shape of a regular polygon. For example, 15 is a triangular number beca...

alrededor de 2 meses hace | 0 | 6 solvers

Resuelto

Given a Polyshape_01 (ps) Return its Perimeter, Area, and Centroid.
Return the perimeter (P) of a polyshape object, which is the sum of the lengths of its boundaries. Return the total area (A) of...

alrededor de 2 meses hace

Problema

Determine whether a number is a Blum integer
A Blum integer is a semiprime—that is, the product of two distinct primes—whose factors have the form for some integer . The nu...

2 meses hace | 0 | 6 solvers

Resuelto

Jigsaw 001: Intro 2x2 square. Pieces 128x128
This challenge is to re-assemble camerman.tif in grayscale from four 128x128 pieces into a 256x256 image. The pointer layou...

2 meses hace

Problema

Compute the number of squares a knight can reach after n moves
Several Cody problems involve knights from chess. They have asked players to find a knight’s tour in a matrix (CP 96), determine...

2 meses hace | 0 | 6 solvers

Resuelto

Write a MATLAB function that takes a positive integer ( n ) as input and returns the sum of all the even numbers from 1 to ( n ).
Write a MATLAB function that takes a positive integer ( n ) as input and returns the sum of all the even numbers from 1 to ( n )...

2 meses hace

Resuelto

Implement the signum function
The signum function is a common mathematical function, which has the following definition : If x => 0, its value is 1, if x < 0...

3 meses hace

Resuelto

Generate a point cloud on an equilateral triangle 1
The input is the iteration parameter H. The output is a point cloud W involving N points. W is N uniformly distributed points ...

3 meses hace

Problema

Compute the totient summatory function
Cody Problem 656 deals with the totient function, denoted by which counts the numbers less than that are relatively prime to ....

3 meses hace | 0 | 5 solvers

Resuelto

ICFP 2024 Programming Contest June 28 thru July 1
This is to announce the annual ICFP programming contest for 2024. The ICFP 2024 homepage link is ICFP 2024 . Registration will...

3 meses hace

Resuelto

Pronounce digits
Given a number num, select the first d decimal places and pronounce the digits (in English). The function returns the pronunciat...

3 meses hace

Problema

Compute Farey sequences
Problem statement The Farey sequence of order consists of fractions between 0 and 1 expressed in reduced form in increasing or...

3 meses hace | 1 | 6 solvers

Resuelto

Remove Adjacent Pairs
Given an array of integers where adjacent elements may be identical, your task is to remove these adjacent pairs. If removing on...

3 meses hace

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