Anne Adamczyk
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Solved
Bit calculation
Give me the count of numbers from 1 to n having their last two bits as 0. For example function y = ret_count(4) y = x...
19 hours ago
Solved
The MATLAB Treasure Hunt – Unlock the Final Chamber by Solving the Ancient Numeric Cipher
You’ve reached the Final Chamber, where a glowing pedestal displays a sequence of numbers. The inscription reads: “Only the su...
21 hours ago
Solved
The MATLAB Treasure Hunt – Escape the Labyrinth of Logic by Unlocking the Correct Door Sequence
You enter the Labyrinth of Logic, where each door opens only if a secret rule is met. A vector of integers represents door code...
22 hours ago
Solved
The MATLAB Treasure Hunt – Locate the Hidden Treasure in the Chamber of Coordinates
Inside the Chamber of Coordinates, glowing runes show several coordinate points on a 2D grid. The treasure lies closest to the ...
22 hours ago
Solved
The MATLAB Treasure Hunt – Cross the River of Ratios by Finding Successive Proportions in the Data Stream
Following the glowing script, you arrive at the River of Ratios — a flowing stream of numbers. A carved message on the rocks re...
22 hours ago
Solved
The MATLAB Treasure Hunt – Decode the Ancient Script by Removing Strange Symbols from the Message
Emerging from the Maze of Numbers, you find a tablet etched with symbols and letters — an Ancient Script! The message is hidden...
23 hours ago
Solved
The MATLAB Treasure Hunt – Identify the Hidden Pattern Within the Maze of Numbers
The compass leads you to an underground chamber covered in numbers carved into the walls — a maze of digits that glows in myster...
23 hours ago
Solved
The MATLAB Treasure Hunt – Fix the Broken Compass by Normalizing Its Angle Readings
Your compass, recovered from the Hidden Cave, spins wildly! The ancient device shows angles that exceed 360° or drop below 0°. T...
23 hours ago
Solved
The MATLAB Treasure Hunt – Count Matching Symbols on the Ancient Scroll to Unlock the Next Clue
Inside the Hidden Cave, you discover an ancient scroll filled with strange symbols and markings. A note beside it says: “Count ...
23 hours ago
Solved
The MATLAB Treasure Hunt – Extract the Hidden Cave’s Coordinates from a Long List of Numbers
After decoding the first clue, you uncover another piece of parchment — a long list of numbers. At first glance, it looks random...
2 days ago
Solved
The MATLAB Treasure Hunt – Decode the First Clue Hidden in a Jumbled Sequence of Numbers
You discover an ancient parchment inside the college archives. It contains a jumbled sequence of numbers that seems meaningless ...
2 days ago
Solved
subtract central cross
Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.
2 days ago
Solved
Remove entire row and column in the matrix containing the input values
Remove the entire row and column from the matrix containing specific values. The specified value can be a scalar or a vector. Fo...
7 days ago
Solved
Decode a simplified barcode
Given a bar code from this <http://www.mathworks.com/matlabcentral/cody/problems/602-make-a-simplified-bar-code exercise>: Re...
8 days ago
Solved
Make a simplified barcode
Given an integer to encode, make a barcode using the following encoding scheme: * The bar code is made from the binary versio...
8 days ago
Solved
Spot the rectangle
This problem is related to the 17x17 challenge. Given a matrix filled with ones and zeros, determine whether or not any rectangl...
9 days ago
Solved
"mirror" matrix
Create n x 2n "mirror" matrix of this type: Examples For n = 2 m = [ 1 2 2 1 1 2 2 1 ] For n = 3 m = ...
9 days ago
Solved
Sort numbers by outside digits
Sort the array so that they are sorted as if their value was a 5 digit number made from the first three and last two digits of t...
12 days ago
Solved
Tridiagonal
Return an n-by-n matrix that has a, b, c as the subdiagonal, main diagonal, and superdiagonal entries in the matrix. Example ...
12 days ago
Solved
Sum of odd numbers in a matrix
Find the sum of all the odd numbers in a matrix. Example x = [2 3 5 7 1 4 11] y = 27
12 days ago
Solved
Time Expansion
How can you slow down any discrete-time signal? Example Input original signal x. x = [1 2 3 -1 -2 -5 -4] We want t...
12 days ago
Solved
counting groups!
This problem is about counting groups. Example If you have x: x = [0.8 0.8 0.8 0.3 0.3 0.4 0.5 0.6 0.6 0.9] then a...
13 days ago
Solved
Max Change in Consecutive Elements
If an array is given as input then find the index of consecutive elements that represent maximum change. Example: Input ...
13 days ago
Solved
remove single elements
Given a vector of integers, remove the elements that have appeared only once. The output elements should be in exact order as th...
13 days ago
Solved
How unique?
Sometimes, when we check unique entries of vector we would like to know how many times each value occurs. Given vector of num...
13 days ago
Solved
Back to basics - mean of corner elements of a matrix
Calculate the mean of corner elements of a matrix. e.g. a=[1 2 3; 4 5 6; 7 8 9;] Mean = (1+3+7+9)/4 = 5
13 days ago
Solved
expand intervals vol.3
This is the next problem after <http://www.mathworks.co.uk/matlabcentral/cody/problems/2528 2528> and <http://www.mathworks.co.u...
13 days ago
Solved
expand intervals vol.2
Similar to problem <http://www.mathworks.co.uk/matlabcentral/cody/problems/2528 2528>. This is a more general case, when bounds ...
30 days ago
Solved
expand intervals
You're given a row vector of an even number of monotonically increasing integers. Each pair of consecutive integers is the lower...
30 days ago
Solved
Create a vector whose elements depend on the previous element
The idea is to create a vector A whose elements depend on the previous element : *A(i+1) = 2*A(i)+1* *2 Inputs*: - A : The...
30 days ago
