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# Nikolaos Nikolaou

##### Last seen: Today
1 926 total contributions since 2015

Interests:
Data Mining
Crypto Mining
Universal Field Theory
Quark - Spin Theory
Solar / Wind farms + automation systems
Amazon / Ebay ecom distribution channels + dropshipping

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Solved

ZigZag - 03
Given a matrix of any size, print its elements from the zigzag form of the matrix. For example, a=[1 2 3; 4 5 6; ...

ungefär 8 timmar ago

Solved

ZigZag - 02
Given a matrix, return the elements that are on the Z form of the matrix. For example - a=[1,2,3,4,5; 6,7,8,9,1; 1...

ungefär 8 timmar ago

Solved

ZigZag - 01
Given a matrix, return the elements that are on the Z form of the matrix. For example - a=[1,2,3; 4,5,6; 7,8,9] ...

ungefär 9 timmar ago

Solved

Yoonir - 03
Find the area of a seven-pointed star inscribed in a circle of radius r.

ungefär 9 timmar ago

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Yoonir - 02
Find the area of a six-pointed star inscribed in a circle of radius r.

ungefär 9 timmar ago

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Yoonir - 01
Find the area of a five-pointed star inscribed in a circle of radius r.

ungefär 9 timmar ago

Solved

MinMax mapping
Given a matrix, map all the elements within a given interval. For example, a=[ 2 5 10] mapped in the interval [1,2] ...

ungefär 9 timmar ago

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balance vector
Given a non-empty vector x with integer elements. x shall be called balance vector if one can split the elements of x into two g...

ungefär 11 timmar ago

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Mid-term report
You just got your mid-term report, but it's full of ones and twos :(. So before you give it to your parents, you change it, in o...

ungefär 11 timmar ago

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Count the number of folds needed to pack a large sheet
In a certain paper factory, large sheets of paper are being made every day. Before sending the sheets for shipment, they have to...

ungefär 11 timmar ago

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Convert a temperature reading from Celsius to an unknown scale
Two of the most famous temperature scales are the Celsius and the Fahrenheit scale. In reality, however, there are so many other...

ungefär 12 timmar ago

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Compute the missing quantity among P, V, T for an ideal gas
Consider 100 mol of helium gas at a certain pressure (P), volume (V), and temperature (T). Assuming that the ideal gas law appli...

ungefär 12 timmar ago

Solved

Lost days
Given two dates in a particular format, calculate the difference between them.

ungefär 13 timmar ago

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leap year
find the number of leap years within the given time interval

ungefär 14 timmar ago

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Datetime basics
Generate the datetime scalar representing the current date

ungefär 14 timmar ago

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Calendar Matrix
Return a calendar matrix for the given values of month and year. Assume that Sunday is the first day of the week. The resulting ...

ungefär 14 timmar ago

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Find the day for a date
Today's day and date will be given to you. By utilising that you need to find the day of the old date. (Date will be in DD/MM/YY...

ungefär 14 timmar ago

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Days until next NewYear ball drop
Given a date string in the form 'yyyy-mm-dd' or 'yyyy-mm-dd hh:mm:ss', calculate the number of *days* until the dropping of the ...

ungefär 14 timmar ago

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Friday the 13th
According to superstition, lots of unpleasant stuff happens on Friday the 13th, so you might like to find the next occurence of ...

ungefär 15 timmar ago

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Day counter function
Write a function called _day_counter_ that returns the number of Mondays that fell on the first day of the month in a given year...

ungefär 15 timmar ago

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The End of the World
given a date -- represent it in the Maya long count system. <https://en.wikipedia.org/wiki/Maya_calendar> <https://maya.nm...

ungefär 15 timmar ago

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How long until the weekend?
Write a function a that takes a date vector as an input and returns the number of hours until the weekend begins. The beginning...

ungefär 16 timmar ago

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

ungefär 20 timmar ago

Solved

Convert ColorSpec string to RGB triplet
Given a ColorSpec string, either in short or long form, return the corresponding RGB triplet. If the input is not a valid color,...

5 dagar ago

Solved

Convert this color - RGB Vector to Hex String
Given a 3 element RGB vector corresponding to a color (given by the MATLAB color spec <http://www.mathworks.com/help/matlab/ref/...

5 dagar ago

Solved

Lights Out 8 - 5x5, light-only solution? I
<https://en.wikipedia.org/wiki/Lights_Out_(game) Lights Out> is a logic game wherein all lights need to be turned off to complet...

5 dagar ago

Solved

Lights Out 7 - 5x5, x moves
<https://en.wikipedia.org/wiki/Lights_Out_(game) Lights Out> is a logic game wherein all lights need to be turned off to complet...

5 dagar ago

Solved

matrix zigzag
Unfold a 2-D matrix to a 1-D array in zig-zag order, e.g., for matrix [ 1 2 3 ; 4 5 6 ; 7 8 9 ] the resulting 1-...

7 dagar ago

Solved

N-Dimensional Array Slice
Given an N-dimensional array, _A_, an index, _I_, and a dimension, _d_, return the _I_ th elements of _A_ in the _d_ dimension. ...

7 dagar ago

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Operate on matrices of unequal, yet similar, size
You may want to add a vector to a matrix, implying that the vector is added to each column of the matrix. Or multiply a 3x4x5 ma...

8 dagar ago

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