Solved

Extract leading non-zero digit (★★★★★)
(Copy of Problem 47) Benford's Law states that the distribution of leading digits is not random. This is probably because man...

5 years ago

Solved

Mo money, mo math 1! (★★★)
(adapted from Prob 9 Cody team) You have a vector where the elements represent the number of $20 bills, $10 bills, $5 bills, ...

5 years ago

Solved

Mo money, mo math #2! (★★★)
(adapted from Prob 9 Cody team) You have a matrix for which each row is a person and the columns represent the number of quar...

5 years ago

Solved

Select every other element of a vector (★★)
(copy of prob 6) Write a function which returns every other element of the vector passed in. That is, it returns the all odd-...

5 years ago

Solved

Create a "+" flag
Given two odd numbers, [m, n], return a matrix of size m x n which has all elements of the centre column and centre row set as 1...

5 years ago

Solved

Flag a convertible string
If a string is able to be entirely converted to an integer, return a "true" flag. Otherwise, return a false flag. For example: ...

5 years ago

Solved

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]

5 years ago

Solved

World Cup 2018 Prediction!
Which team will be the winner?

5 years ago

Solved

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

5 years ago

Solved

Find all repeated numbers
For a given vector, find all numbers that repeated 2 times or more than 2 times. Example: A=[1 2 3 3 4 5 6 6 7] y=[3 ...

5 years ago

Solved

Calculate mean value of any pair in a vector.
Given a vector A, calculate the mean of 2 number in the vector one by one. example: input: A=[1, 5, 6, 8, 9, 15] output:...

5 years ago

Solved

Outlier number!
Find a number which has maximum distance from the mean value of vector A. Example: A=[5 2 1 5 6 2 5 9] y=9

5 years ago

Solved

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

5 years ago

Solved

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 ...

5 years ago

Solved

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 ...

5 years ago

Solved

Prime numbers between a , b.
Find all prime number between a & b (including a and b). example: a=100 b=120 y= [101 103 107 109 113]

5 years ago

Solved

Draw 'J'
Given n as input, generate a n-by-n matrix 'J' using 0 and 1 . Example: n=5 ans= [0 0 0 0 1 0 0 0 0 1 0 0 ...

5 years ago

Solved

Draw 'I'
Given n as input, draw a n-by-n matrix 'I' using 0 and 1. example: n=3 ans= [0 1 0 0 1 0 0 1 0] n=...

5 years ago

Solved

Crunch that matrix!
You are given an M x N matrix. Write a script that will compress this matrix into an M x (N/3) matrix, where each of the terms ...

5 years ago

Solved

Find the outlier in a set of samples
Given an array x of numbers. Assumed that this array has one outlier. Find the position p and the value v of the outlier in this...

5 years ago

Solved

Is the Point in a Circle?
Check whether a point or multiple points is/are in a circle centered at point (x0, y0) with radius r. Points = [x, y]; c...

5 years ago

Solved

Back to basics 15 - Benchmark
Covering some basic topics I haven't seen elsewhere on Cody. Return an array of the benchmark values for MATLAB.

5 years ago

Solved

Tax Calculator
Calculate the tax for a given income. 10% tax is paid for any income up to $2,000. 20% tax is paid for additional income u...

5 years ago

Solved

Is this is a Tic Tac Toe X Win?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

5 years ago

Solved

Generate this matrix
For a given odd integer n, generate a matrix as follows: Input: n = 5; Output: [ 2 1 0 0 0 1 ...

5 years ago

Solved

Weave two matrices together to form one matrix
Take the first column from matrix a, then insert the first column from matrix b, and so on. For example: a = [1 2 3 4]; b ...

5 years ago

Solved

Elements with highest local average
Input v is a row vector such that length(v)>3. Consider a sliding window of length 3 that is used to calculate the local average...

5 years ago

Solved

Union of two set decreasing order
Union of two set decreasing order Say, x=[1 2 5] and y=[5 7 8] then answer must be [8 7 5 2 1]

5 years ago

Solved

Find Out sum of principal diagonal element of given matrix
Find out sum of principal diagonal element of given matrix If A=[1 0 0; 0 1 0;0 0 1], then answer must be 3.

5 years ago

Solved

Find 10's complement
Find 10's complement of a given number. An example is <http://electrical4u.com/9s-complement-and-10s-complement/ shown here>.

5 years ago