A résolu


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

plus de 10 ans il y a

A résolu


Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

plus de 10 ans il y a

A résolu


Who is the baby and who is the daddy in this family?
Given an array of numbers that shows the characteristcs of all family members, find who is the baby and who is daddy in this fam...

plus de 10 ans il y a

A résolu


Flip the main diagonal of a matrix
Given a n x n matrix, M, flip its main diagonal. Example: >> M=magic(5); >> flipDiagonal(M) 9 24 1 ...

plus de 10 ans il y a

A résolu


Sorting
Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

plus de 10 ans il y a

A résolu


Lose control
Remove all characters that are below space in ASCII value.

plus de 10 ans il y a

A résolu


Count photos
Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total nu...

plus de 10 ans il y a

A résolu


Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

plus de 10 ans il y a

A résolu


Who is the smartest MATLAB programmer?
Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...

plus de 10 ans il y a

A résolu


2 b | ~ 2 b
Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

plus de 10 ans il y a

A résolu


Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times. Examples : n=2, A=[1 2 3] -> [1 1 2 2 3 3] n=0...

plus de 10 ans il y a

A résolu


Rotate a Matrix
Input a Matrix x, Output y is the matrix rotating x 90 degrees clockwise

plus de 10 ans il y a

A résolu


give nth decimal place of pi
max 15th place after the decimal point is ok for now

plus de 10 ans il y a

A résolu


Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

plus de 10 ans il y a

A résolu


Back to basics 23 - Triangular matrix
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

plus de 10 ans il y a

A résolu


Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

plus de 10 ans il y a

A résolu


Who knows the last digit of pi?
There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...

plus de 10 ans il y a

A résolu


Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

plus de 10 ans il y a

A résolu


Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

plus de 10 ans il y a

A résolu


All your base are belong to us
Find the base _b_ logarithm of the input decimal number _x_. Express the output as a decimal number. The first argument is the n...

plus de 10 ans il y a

A résolu


Remove DC
Input x is the sampled signal vector, may have both AC and DC components. Output y should not contain any DC component. Examp...

plus de 10 ans il y a

A résolu


given 3 sides, find area of this triangle
1:3 -> 0; 3:5 -> 6

plus de 10 ans il y a

A résolu


Get the length of a given vector
Given a vector x, the output y should equal the length of x.

plus de 10 ans il y a

A résolu


Multiply a column by a row
* Given a column vector C and and a row vector R. * Output a matrix M. * Every column of M equals to C multiplied by correspon...

plus de 10 ans il y a

A résolu


Duplicate each element of a vector.
for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

plus de 10 ans il y a

A résolu


Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5

plus de 10 ans il y a

A résolu


pressure to dB?
given x ratio of pressure, find corresponding y dB

plus de 10 ans il y a

A résolu


Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

plus de 10 ans il y a

A résolu


So many choices
For inputs _n_ and _k_ (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. ...

plus de 10 ans il y a

A résolu


sum of non-primes
The sum of the non-primes below 10 is 1+4+6+8+9+10=38 Find the sum of all the non-primes below the input, N.

plus de 10 ans il y a

Charger plus