Problema


Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

quasi 15 anni fa | 23 | 5254 risolutori

Problema


Return a list sorted by number of occurrences
Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

quasi 15 anni fa | 19 | 2902 risolutori

Problema


Pascal's Triangle
Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...

quasi 15 anni fa | 26 | 4519 risolutori

Problema


Find relatively common elements in matrix rows
You want to find all elements that exist in greater than 50% of the rows in the matrix. For example, given A = 1 2 3 5 ...

quasi 15 anni fa | 13 | 2160 risolutori

Problema


Quote Doubler
Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

quasi 15 anni fa | 17 | 3909 risolutori

Problema


Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

quasi 15 anni fa | 49 | 4890 risolutori

Problema


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

quasi 15 anni fa | 115 | 19951 risolutori

Problema


Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

quasi 15 anni fa | 41 | 7505 risolutori

Problema


Remove all the words that end with "ain"
Given the string s1, return the string s2 with the target characters removed. For example, given s1 = 'the main event' your ...

quasi 15 anni fa | 28 | 2734 risolutori

Problema


Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

quasi 15 anni fa | 29 | 5821 risolutori

Problema


Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

quasi 15 anni fa | 47 | 5170 risolutori

Problema


Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

quasi 15 anni fa | 17 | 3825 risolutori

Problema


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

quasi 15 anni fa | 122 | 22579 risolutori

Problema


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

quasi 15 anni fa | 75 | 8795 risolutori

Problema


Function Iterator
Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

quasi 15 anni fa | 61 | 2256 risolutori

Problema


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

quasi 15 anni fa | 191 | 21906 risolutori

Problema


Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

quasi 15 anni fa | 30 | 6464 risolutori

Problema


Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

quasi 15 anni fa | 38 | 4016 risolutori

Problema


Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

quasi 15 anni fa | 82 | 8539 risolutori

Problema


Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

quasi 15 anni fa | 36 | 7890 risolutori

Problema


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

quasi 15 anni fa | 119 | 23265 risolutori

Problema


Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

quasi 15 anni fa | 99 | 6111 risolutori

Problema


Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

quasi 15 anni fa | 81 | 6858 risolutori

Problema


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

quasi 15 anni fa | 73 | 15821 risolutori

Problema


Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

quasi 15 anni fa | 28 | 5549 risolutori

Problema


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

quasi 15 anni fa | 48 | 9176 risolutori

Problema


Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

quasi 15 anni fa | 26 | 4201 risolutori

Problema


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

quasi 15 anni fa | 109 | 14394 risolutori

Problema


Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

quasi 15 anni fa | 58 | 7003 risolutori

Problema


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

quasi 15 anni fa | 164 | 23584 risolutori

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