Community Profile

# Piotr Lesniewski

### Politechnika Lodzka

176 2016 年以降の合計貢献数

#### Piotr Lesniewski's バッジ

Draw 'D'.
Draw a x-by-x matrix 'D' using 0 and 1. example: x=4 ans= [1 1 1 0 1 0 0 1 1 0 0 1 1 1 1 0]

Draw 'C'.
Given x as input, generate a x-by-x matrix 'C' using 0 and 1. example: x=4 ans= [0 1 1 1 1 0 0 0 ...

Draw 'B'
Draw a x-by-x matrix 'B' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 0 1 0 0 0 1 ...

Draw a 'X'!
Given n as input Draw a 'X' in a n-by-n matrix. example: n=3 y=[1 0 1 0 1 0 1 0 1] n=4 y=[1 0 0...

When Was That Goal Scored?
We want to find out when the goals were scored in a particular soccer game. For each game, we are given a "Goal Event Data" XML ...

Use R2016b Text Manipulations to Fix These Addresses (Part 1)
We have a series of addresses like the following which we'd like to reformat. Can you remove the latitude and longitude from the...

Combine the first and last names
MATLAB R2016 provides a rich set of functions to work with string arrays. In this problem, you will be given two string arrays o...

String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values
<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

Spot the rectangle (Part 2)
This problem is related to the <http://bit-player.org/2009/the-17x17-challenge 17x17 challenge>. See also <http://www.mathworks....

Spot the rectangle
This problem is related to the <http://bit-player.org/2009/the-17x17-challenge 17x17 challenge>. Given a matrix filled with ones...

Check to see if a Sudoku Puzzle is Solved
*Description:* Your task, should you choose to accept it, is to make a function that checks to see if a 9x9 matrix of integer...

Weighted Gold/Silver Standard
Building off of the <http://www.mathworks.com/matlabcentral/cody/problems/8045-gold-standard Gold Standard> and <http://www.math...

Gold/Silver Standard
Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/8045-gold-standard Gold Standard> problem, suppose that yo...

Gold Standard
Gold has long been used as currency and a standard for currency, due to its inherent value and rarity. Historical data for gold ...

Return fibonacci sequence do not use loop and condition version 2
Calculate the nth Fibonacci number,return sequence Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... ...

2ヶ月 前

Pattern Recognition 3 - Variable Unit and Array Length (including cell arrays)
You will be given various arrays, composed of numbers or strings, including cell arrays of strings. For this problem, the patter...

2ヶ月 前

Pattern Recognition 2 - Known Unit Length, Various Array Length (including cell arrays)
You will be given various arrays, composed of numbers or strings, including cell arrays of strings. For this problem, the known ...

2ヶ月 前

Pattern Recognition 1 - Known Unit Length
You will be given various arrays, composed of numbers or strings. For this problem, the known pattern unit length is three. Writ...

2ヶ月 前

Twin Primes
Twin primes are pairs of primes that are immediately next to each other (difference of two). The lesser of twin primes are 3, 5,...

2ヶ月 前

Self-similarity 3 - Every other pair of terms
Self-similar integer sequences are certain sequences that can be reproduced by extracting a portion of the existing sequence. Se...

2ヶ月 前

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...

2ヶ月 前

Self-similarity 1 - Every other term
Self-similar integer sequences are certain sequences that can be reproduced by extracting a portion of the existing sequence. Se...

2ヶ月 前

Mobius function
From <http://en.wikipedia.org/wiki/Möbius_function wikipedia>: For any positive integer n, define μ(n) as the sum of the prim...

2ヶ月 前

Not square-free number sequence
<http://oeis.org/A013929 Not square-free numbers> are all positive integers divisible by a square greater than one: 4, 8, 9, 12,...

2ヶ月 前

Sphenic number sequence
<http://oeis.org/A007304 Sphenic numbers> are positive integers that are products of three distinct prime numbers: 30, 42, 66, 7...

2ヶ月 前

Special matrix
Make a square matrix with this shape. For n=4 M = 1 1 0 0 1 0 1 0 0 1 0 ...

2ヶ月 前

Mirror Image matrix across anti-diagonal
Given an input number x, create a mirror image matrix 'Y' across the anti-diagonal. For example, if x=3, Y = [1 2 3; ...

2ヶ月 前

Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.
For example, if n=2 (maximum value), the output matrix should be [1 1 1 1 1; 1 2 2 2 1; 1 2 1 2 1; 1 2 2 2 1; 1...

2ヶ月 前

Pascal's Matrix
Given an integer n &ge; 0, generate the ( _n_+1) &times; ( _n_+1) lower triangular <http://en.wikipedia.org/wiki/Pascal_matrix P...

2ヶ月 前

Put m balls into n boxes
Can you find all the cases where, if I put 3 balls into 2 boxes the case is 1 1 1 1 1 2 1...

2ヶ月 前