Alfonso Nieto-Castanon

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Personal Profile

http://www.alfnie.com

Rank 5
Score 4090
391 problems solved 12 problems created 5 problems liked 7 solutions liked
20Solvers

Return unique values without sorting

Created by Aurelien Queffurust

Tags

sorted, unique

Problem Group

Community
  • Solved
25Solvers

Find the largest value in the 3D matrix

Created by Bruce Raine

Tags

3d

Problem Group

Community
  • Solved
22Solvers

Mersenne Primes

Created by Drew Weymouth

Tags

mersenne, prime number, prime, integers, logical

Problem Group

Community
  • Solved
5Solvers

old wine in a new bottle?

Created by Amitava Biswas

Tags

function

Problem Group

Community
  • Solved
5Solvers

Pig Latin to English Translator

Created by @bmtran

Tags

translate, regular expressions, pig latin, regexp

Problem Group

Community
  • Solved
5Solvers

English to Pig Latin Translator

Created by @bmtran

Tags

english, translating, regular expressions, pig latin

Problem Group

Community
  • Solved
11Solvers

Wind outward from the center ...

Created by Aurelien Queffurust

Tags

matrix

Problem Group

Community
  • Solved
5Solvers

Spot the rectangle (Part 2)

Created by Ned Gulley

Tags

17x17, matrices

Problem Group

Community
  • Solved
10Solvers

Spot the rectangle

Created by Ned Gulley

Tags

17x17, matrices

Problem Group

Community
  • Solved
12Solvers

Converting Decimal to Binary

Created by Turgut

Tags

convert, decimal, binary

Problem Group

Community
  • Solved
28Solvers

Count photos

Created by Amitava Biswas

Tags

combinatorics

Problem Group

Community
  • Solved
18Solvers

Rosenbrock's Banana Function and its derivatives

Created by Robert Canfield

Tags

rosenbrock, banana, aoe4084

Problem Group

Community
  • Solved
23Solvers

Back to basics 26 - Keywords

Created by Alan Chalker

Tags

keywords

Problem Group

Community
  • Solved
25Solvers

Back to basics 25 - Valid variable names

Created by Alan Chalker

Tags

variable names

Problem Group

Community
  • Solved
15Solvers

Back to basics 24 - Symbolic variables

Created by Alan Chalker

Tags

symbolic variables

Problem Group

Community
  • Solved
4Solvers

Fletcher-Reeves Conjugate Gradient Method

Created by Robert Canfield

Tags

unconstrained, banana, aoe4084

Problem Group

Community
  • Solved
6Solvers

Steepest Descent Method

Created by Robert Canfield

Tags

unconstrained, banana, aoe4084

Problem Group

Community
  • Solved
5Solvers

Let's do Markov Chains!

Created by Stephen

Tags

markov chain, linear algebra

Problem Group

Community
  • Solved
4Solvers

Would Homer Like It?

Created by Ned Gulley

Tags

images, topology

Problem Group

Community
  • Solved
26Solvers

Make an awesome ramp for a tiny motorcycle stuntman

Created by Stephen

Tags

stunt ramp

Problem Group

Community
  • Solved
6Solvers

Bang Bang in Bangalore

Created by Amitava Biswas

Tags

regular expression, edit, find, replace, match

Problem Group

Community
  • Solved
4Solvers

Oxidation State

Created by Amitava Biswas

Tags

calculate, regular expression, replace, chemistry, match

Problem Group

Community
  • Solved
12Solvers

Formatting currency numbers

Created by Ned Gulley

Tags

currency, formatting, strings

Problem Group

Community
  • Solved
10Solvers

Surface Fit z(x,y)

Created by Amitava Biswas

Tags

2d, surface, quadratic, fit, polynomial

Problem Group

Community
  • Solved
8Solvers

Aufbau principle

Created by Amitava Biswas

Tags

electron, atom, chemistry, physics

Problem Group

Community
  • Solved
9Solvers

Is this group simply connected?

Created by Ned Gulley

Tags

graph theory

Problem Group

Community
  • Solved
10Solvers

Compress strings (not springs)

Created by Amitava Biswas

Tags

character, condense, space, edit, string

Problem Group

Community
  • Solved
10Solvers

Function Sniffer

Created by Amitava Biswas

Tags

function

Problem Group

Community
  • Solved
8Solvers

Looking for Squares

Created by Amitava Biswas

Tags

square, mathematics, algebra, arithmetic

Problem Group

Community
  • Solved
14Solvers

letter yes yes & letter no no

Created by Amitava Biswas

Tags

letter, alphabet, string

Problem Group

Community
  • Solved
8Solvers

Valid Chess Moves

Created by Alan Chalker

Tags

chess

Problem Group

Community
  • Solved
6Solvers

Drying sweater?

Created by Amitava Biswas

Tags

radioactive, thermodynamics, decay, exponential, chemistry

Problem Group

Community
  • Solved
4Solvers

Parcel Routing

Created by @bmtran

Tags

ups, nodes, graph theory, shortest path

Problem Group

Community
  • Solved
32Solvers

Replace May with April

Created by Sunu

Tags

matlab

Problem Group

Community
  • Solved
45Solvers

sum of diagonal of a square matrix

Created by Sunu

Tags

basic matlab

Problem Group

Community
  • Solved
6Solvers

resistor ladder

Created by Amitava Biswas

Tags

electrical, ladder, network

Problem Group

Community
  • Solved
10Solvers

Acidity of vinegar and salts

Created by Amitava Biswas

Tags

medical, chemistry

Problem Group

Community
  • Solved
4Solvers

bad colorimeter?

Created by Amitava Biswas

Tags

chemistry

Problem Group

Community
  • Solved
6Solvers

Grandpa's telescope

Created by Amitava Biswas

Tags

optics, physics

Problem Group

Community
  • Solved
28Solvers

Is this matrix orthogonal?

Created by Bruce Raine

Tags

orthogonal

Problem Group

Community
  • Solved
5Solvers

swap sign sum & multiply castles

Created by Amitava Biswas

Tags

chess, arithmetic, matrix

Problem Group

Community
  • Solved
8Solvers

count any radix?

Created by Amitava Biswas

Tags

radix, count

Problem Group

Community
  • Solved