Freddy

Active since 2012

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2 Problems
551 Solutions

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Solved

Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

meer dan 11 jaar ago

Solved

The Answer to Life, the Universe, and Everything
A variation of a previous Hitchhiker's Guide to the Galaxy problem. *Inputs:* Life, the Universe, and Everything *Output:*...

ongeveer 12 jaar ago

Solved

Bit Reversal
Given an unsigned integer _x_, convert it to binary with _n_ bits, reverse the order of the bits, and convert it back to an inte...

ongeveer 12 jaar ago

Solved

MatCAT - Reconstruct X from Its X-rays
Consider a matrix x x = [ 1 2 0 0 5 0 3 0 8 ] If we sum x along the rows we get row_sums = [3 5 11] ...

ongeveer 12 jaar ago

Solved

Create a matrix X, where each column is a shifted copy of the vector v
Example : in->v = (1:5)'; 1 2 3 4 5 out-> [1 5 4 3 2;2 1 5 4 3;3 2 1 5 4;4 3 2 1 5;5 4 3 ...

ongeveer 12 jaar ago

Solved

Convert String to Morse Code
Convert a given string to international <http://en.wikipedia.org/wiki/Morse_code Morse Code> * Strings will only have [A-z], ...

ongeveer 12 jaar ago

Solved

newRMS
find root mean square of a signal x in less time than the test code and accurate to six places.

ongeveer 12 jaar ago

Solved

Given a matrix, return the last eigen value
Given a matrix, return the first eigen value For example: x = magic(5) 17 24 1 8 15 23 5 7 14 ...

ongeveer 12 jaar ago

Solved

Wheat on a chessboard pt 2
If a chessboard were to have wheat placed upon each square such that x grains were placed on the first square and each successiv...

ongeveer 12 jaar ago

Solved

Wheat on a chessboard pt 1
If a chessboard were to have wheat placed upon each square such that one grain were placed on the first square and each successi...

ongeveer 12 jaar ago

Solved

Max index of 3D array
Given a three dimensional array M(m,n,p) write a code that finds the three coordinates x,y,z of the Maximum value. Example ...

ongeveer 12 jaar ago

Solved

matrix of natural number
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 resides seially as shown in the examples below. ...

ongeveer 12 jaar ago

Solved

Colon operator of two vectors
You are given two vectors of equal length: VecStart, VecEnd Each vector contain a set of integers, where VecEnd(j)>=VecStar...

ongeveer 12 jaar ago

Solved

Will there be a new leader?
Simply answer the title.

ongeveer 12 jaar ago

Solved

Steal, Share, or Catch
You, I, and a few other characters are going to play a game of *Steal, Share or Catch*. We are going to play it 10,000 times vs...

ongeveer 12 jaar ago

Solved

Determine the number of odd integers in a vector
Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...

ongeveer 12 jaar ago

Solved

Number of Horns on a unicorn!
Calculate the number of horns on a *unicorn*! And I'm talking about a unicorn with not more than one horn on it!

ongeveer 12 jaar ago

Solved

Convert elements in numeric array into different class
Write a function that converts elements in a numeric array into a different class. Example: a = [1:5]; % class: double b...

ongeveer 12 jaar ago

Solved

THE CALCULATOR OF LOVE
In honor of Valentine's Day, program a love calculator that figures out the percentage of compatibility between two people using...

ongeveer 12 jaar ago

Solved

Accurate Division
Given three integers x, y and d, return x/y (as a string) to d significant digits. Remove leading and trailing zeros. Example...

ongeveer 12 jaar ago

Solved

How many days does the cat take to climb out of the hole?
A cat accidentally falls down a hole with sloping but rough sides. It can climb out of the hole of height h metres, but for ever...

ongeveer 12 jaar ago

Solved

Find smallest integer type to accommodate your number
MATLAB supports 1-, 2-, 4-, and 8-byte storage for integer data. Find the smallest integer type to accomodate a scalar integer. ...

ongeveer 12 jaar ago

Solved

Find the nearest integer
Given a vector of integers and a real number find the closest integer. EX: >> a = [2 4 5 6 8 10]; >> b = 4.6; >> nea...

ongeveer 12 jaar ago

Solved

Infinite precision division
Develop a function that will divide a very very large integer numerator, supplied to function as a string (e.g., '12233344445555...

ongeveer 12 jaar ago

Solved

When can one be the Life Member of the IEEE?
Consult the site http://en.wikipedia.org/wiki/Ieee from where it can be seen that IEEE Members who have reached the age of 65 an...

ongeveer 12 jaar ago

Solved

Coin change combinations.
Using only pennies (1), nickels (5), dimes (10), quarters (25), half dollars (50), and dollars (100), how many different combina...

ongeveer 12 jaar ago

Solved

Decoding : Find the value
'u' in the function below is of type char or string and 'v' is of type int or double. function y = your_fcn_name( u, v) ...

ongeveer 12 jaar ago

Solved

It's race time! Write a faster function than the test suite call of unique().
Write a function to get unique elements of a vector faster than unique()! Input will be a vector (of integers or floating point ...

ongeveer 12 jaar 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...

ongeveer 12 jaar ago

Solved

Generate a random matrix A of (1,-1)
Input n: is an positive integer which serves as the dimension of the matrix A; Output: A=(Aij),where each entry Aij is either...

ongeveer 12 jaar ago