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Get the value 100
Knowing that 123-45-67+89=100, write a function that gives this result for any order of the digits in the input. Otherwise, the ...

6 years ago

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Sieve of Eratosthenes - 02
"Sift the Two's and Sift the Three's, The Sieve of Eratosthenes. When the multiples sublime, The numbers that remain a...

6 years ago

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Sky full of stars - 03
draw the following pattern with asterisks. For example, for n=6 '************' '***** *****' '**** ****' ...

6 years ago

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Sky full of stars - 02
draw an isosceles triangle with asterisks of size n. For example, for n=6 ' * ' ' *** ' ' **...

6 years ago

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Sky full of stars - 01
Draw a right triangle with asterisks of size n. For example, for n=5 '* ' '** ' '*** ' '**** ' ...

6 years ago

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Do they touch?
The center and radius of two circles are given. Determine whether they touch.

6 years ago

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Count the days
Count the occurrence of a particular day (e.g. Monday) in a given year.

6 years ago

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Pell numbers
Find the nth pell number <https://en.wikipedia.org/wiki/Pell_number>

6 years ago

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Orthogonal lines
Check whether two given lines are orthogonal or not. Two lines are orthogonal if they create a right angle at their intersect...

6 years ago

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XOR fibonacci
a & b are the first two terms in the xor fibonacci sequence. Find the nth term of that sequence. XOR fib sequence is that in ...

6 years ago

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Exponentiation
Given 3 integers b,e,k; find -- mod(b^e,k)

6 years ago

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Sum of series
a(n) = n^2 - (n-1)^2 find the summation of the series upto n i.e. a(1)+a(2)+...+a(n)

6 years ago

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Calculating large fibonacci numbers
The fibonacci sequence starts 1,1,2,3,5,8... Find the the n'th fibonacci number. Then calculate round(log10( . )) of that n't...

6 years ago

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lucky
check whether n is a lucky number <https://oeis.org/A000959>

6 years ago

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Ugly numbers - 03
For this case, a number is defined ugly if it has prime factors consisting of only elements of x. Find the nth ugly number. ...

6 years ago

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Ugly numbers - 01
Ugly numbers are those whose prime factors are 2, 3 or 5. find the nth ugly number.

6 years ago

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Ugly numbers - 02
Ugly numbers are those whose prime factors are 2, 3 or 5. find the nth ugly number. n.b. unlike the previous problem,trivi...

6 years ago

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Area-07
This is a follow up of the problem <https://www.mathworks.com/matlabcentral/cody/problems/45341-area-06> in this case, fi...

6 years ago

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Area-06
The length of the side of a square is given. Draw 4 quarter-circles inside the square from 4 corners with a radius equal to t...

6 years ago

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Area-05
The dimension of a rectangle is given. There are two circles of equal size that are inscribed inside it.The circles are tangent ...

6 years ago

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Bell Triangle
Form the bell triangle upto nth bell number posotion; * if n=5 * y= [1 0 0 0 0; 1 2 0 0...

6 years ago

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cofactor matrix
given a matrix, find its cofactor matrix <https://en.wikipedia.org/wiki/Minor_(linear_algebra)#Inverse_of_a_matrix>

6 years ago

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

6 years ago

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Gray code
Given a decimal number, convert it to its corresponding Gray code (see https://en.wikipedia.org/wiki/Gray_code). 8 -- 1100...

6 years ago

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Cantor counting
Find the nth cantor's rational number. the sequence is given below in the link. Sequence: 1/1,1/2,2/1,3/1,2/2,1/3,1/4... ... .....

6 years ago

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check whether a number is a pentatope number
<https://oeis.org/A000332>

6 years ago

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Area-04
The dimension of a rectangle is given. There are two circles of equal size that are inscribed inside it.The circles are tangent ...

6 years ago

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Area-03
There are two circles of equal size are inscribed inside a square. They are tangent to each other. <https://serving.photos.ph...

6 years ago

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Area-02
Given the radius of the circle inscribed in a square, find the area of the square that can be fitted perfectly in the corner. ...

6 years ago

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Area-01
Given the radius of the circle inscribed in a square, find the area that is not bounded by the circle but inside the square. ...

6 years ago