Beginner's Problem - Squaring
Try out this test problem first.
Given the variable x as your input, square it by two and put the result in y.
Examples:
...
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Divide by 4
Given the variable x as your input, divide it by 4 and put the result in y.
Simple Decoder Ring
The stereotypical _decoder ring_ is remembered as a cereal box prize from the 1950s. Kids learned about cryptography by startin...
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Longest run of consecutive numbers (★★★★★)
(copy of Problem 672)
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you...
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Find longest run
Write a function longest_run that takes as input an array of 0's and 1's and outputs the length and index of the longest consecu...
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expand intervals
You're given a row vector of an even number of monotonically increasing integers. Each pair of consecutive integers is the lower...
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Decimation
When dealing to the Roman Army, the term decimate meant that the entire unit would be broken up into groups of ten soldiers, and...
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Sum the Infinite Series
Given that 0 < x and x < 2*pi where x is in radians, write a function
[c,s] = infinite_series(x);
that returns with the...
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Pairwise column flip
Given matrix *M_in*, flip every pair of columns. So if *M_in* is
1 2 3 4
1 2 3 4
then *M_out* is
2 1 4 3
2 1 4 3
...
Sorting integers by their digits (Level 2)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42809-sorting-integers-by-their-digits Probl...
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Sorting integers by their digits (Level 1)
Given a vector, v, of positive integers, return a vector, w, by sorting v in ascending order, such that primary sorting is done ...
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Is A the inverse of B?
Given a matrix A and a matrix B, is A the inverse of B?
>>A=[2,4;3,5];
>>B=[-2.5,2;1.5,-1];
>>isInverse...
Sorting integers by their digits (Level 4)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42815-sorting-integers-by-their-digits-level...
約3年 前
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Sorting integers by their digits (Level 3)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42811-sorting-integers-by-their-digits-level...