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Athi


Amrita Vishwa Vidyapeetham

1 969 total contributions since 2009

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Unusual Concatenations
The sum of the squares of certain unusual integers is equal to the concatenation of their individual digits. For example: ...

environ une heure ago

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Whole Number Un-Concatenator
Write a function that accepts an integer and an index digit and returns a vector containing two integers which are the leading a...

environ une heure ago

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Whole Number Concatenator
Write a function that concatenates whole numbers. For example: numcat(111,222) should return 111222 numcat(1,2,3,4,5) s...

environ une heure ago

Solved


Dudeney Numbers: Numbers which are the cube of their decimal sum
From Wikipedia: _A Dudeney number is a positive integer that is a perfect cube such that the sum of its decimal digits is equa...

environ une heure ago

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Factorions: Numbers that equal the sum of the factorials of their digits
From Wikipedia: _A factorion is a natural number that equals the sum of the factorials of its decimal digits_ For example: ...

environ une heure ago

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Fractal: area and perimeter of Koch snowflake
Starting from an equilateral triangle with side 's', what is the area and perimeter of Koch snowflake at n'th recursive iteratio...

environ 2 heures ago

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Number of paths on a n-dimensional grid
This problem is inspired by <https://www.mathworks.com/matlabcentral/cody/problems/1483-number-of-paths-on-a-grid> and <https:/...

environ 2 heures ago

Solved


Number of paths on a 3d grid
This problem is inspired by <https://www.mathworks.com/matlabcentral/cody/problems/1483-number-of-paths-on-a-grid>, which you mi...

environ 2 heures ago

Solved


Number of paths on a grid
Consider a grid formed by n vertices vertically down, and m vertices horizontally right. Your starting point is at the top lef...

environ 2 heures ago

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The last non-zero digit of a factorial
For given positive integer n, what is the last non-zero digit of n!? Example: factorial(11) = 39916800 Last non-zero d...

environ 2 heures ago

Solved


The number of trailing zero digit of a factorial
For given positive integer n, take factorial of that number. How many trailing zeros does it have? Example: factorial(11) = 3...

environ 2 heures ago

Solved


Number of even divisors of a given number
Given a Number n, return the number of its even divisors without listing them. example: n=14 ; EvenDivisors={2,14} ; y=2 ...

environ 2 heures ago

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Smallest n, for n! to have m trailing zero digits
For given positive integer n, its factorial often has many trailing zeros, in other words many factors of 10s. In order for n! t...

environ 3 heures ago

Solved


number of groups
In a classroom, *n* students work on a special project and the other students work in groups of five. If there are 18 students i...

environ 4 heures ago

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Determinants
Given a square matrix(A), find the determinant(d). For example: A = [1,3;4,5] d = 1*5-4*3 = -7

environ 4 heures ago

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Matrix game: Winner takes all
Given a matrix A, return a new matrix of the same size in which the biggest element of each column in A takes 1, and 0 for all t...

environ 4 heures ago

Solved


another bullseye
create matrix like below -- for x=2, y=[1 1 1 1 1; 1 2 2 2 1; 1 2 3 2...

environ 4 heures ago

Solved


Simple Decoder Ring
The stereotypical _decoder ring_ is remembered as a cereal box prize from the 1950s. Kids learned about cryptography by startin...

environ 21 heures ago

Solved


Angles of the hands of a clock
For this problem, consider an analog (or at least continuous digital representation) of a clock. Our clock is a 12 hour clock w...

environ 22 heures ago

Solved


How many days?!?
Christmas is coming earlier and earlier each year. Thanks to rampant commercialism and Christmas Creep, "The Twelve Days of Chr...

environ 22 heures ago

Solved


Find MPG of Lightest Cars
The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

environ 23 heures ago

Solved


An Ohm's Law Calculator
*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...

environ 23 heures ago

Solved


combine cells
A cell type variable is created. However it has other cells in itself. we want to integrate them all in a single cell. the conte...

1 jour ago

Solved


Distance a ball travels after throwing vertically
Calculate the total distance *'d'* (in meters) a ball would travel after *'s'* seconds and starting velocity of *'v'* (in m/s). ...

1 jour ago

Solved


Find and replace the zero array in a matrix
Find the zero array in the matrix and replace it with average of surrounding (adjacent) arrays. Example: A = 3 ...

1 jour ago

Solved


rectangle in circle
In the figure below, the rectangle at the corner measures a cm x b cm. What is the radius of the circle in cm? <<http://www....

1 jour ago

Solved


Permutation
How many different words can be formed using all the letters(together) from a given input word? Input is a string.

1 jour ago

Solved


Leap Year
According to Gregorian Calender(which is in use now, in many countries),decide whether a given year is a leap year or not. Give...

1 jour ago

Solved


How Many Months Until It's Today Again?
Given a particular date, calculate how many months must pass before that same day of the month occurs on the same day of the wee...

1 jour ago

Solved


I'm going to enjoy watching you calculate, Mr Anderson
Smith numbers are numbers such that if you add up all of the digits in the number, that sum equals the sum of all of the digits ...

2 jours ago

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