# Nikolaos Nikolaou

Followers: 0 Following: 0

AI engineer

**Programming Languages:**

Python, C++, C, R, MATLAB, SQL

**Spoken Languages:**

English

**Pronouns:**

He/him

**Professional Interests:**

AI, Data Science, and Statistics

**Statistics**

**Cody**

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**Feeds**

Solved

Reversing Maximal Ascending Subsequences

Create and return a new array that contains the same elements as the input array, but with the elements within each strictly inc...

14 days ago

Solved

Secret Message and Acrostic

One of the simplest ways to hide a message involves utilizing uppercase letters. Given a text, collect all uppercase letters in...

17 days ago

Solved

Instructions Following

Complete the function follow(s) which, for a given string (containing only the letters 'f', 'b', 'l', 'r'), calculates the final...

17 days ago

Solved

Calculating the Union Area of Overlapping Rectangles

Calculate the area covered by a union of multiple rectangles. Each rectangle is represented by 4 integers: the first two integer...

17 days ago

Solved

Find the triplet

Given an array x of size n > 3 and an integer N, return the indices of three elements in the array that sum up to the given inte...

19 days ago

Solved

Final Stone Weight

You are given an array with weights of stones. The objective is to determine the weight of the final stone remaining after all c...

19 days ago

Solved

Finding the Most Frequent Letter in a Text

You are given a text containing various English letters, digits and punctuation symbols. Your task is to find the most frequentl...

19 days ago

Solved

Perfect shuffle

We call "perfect shuffle" the process of cutting a deck of cards into two equal halves, and then perfectly interleaving them: on...

19 days ago

Solved

Interval Compression

Given a set of integers, the task is to create a list of closed intervals where each interval includes its endpoints. For exampl...

20 days ago

Solved

Hofstadter H sequence

The Hofstadter G sequence is defined as follows: The first elements of the sequence are 0, 1, 1, 2, 3, 4, 4, 5, 5, 6. Write ...

20 days ago

Solved

Hofstadter G sequence

The Hofstadter G sequence is defined as follows: The first elements of the sequence are 0, 1, 1, 2, 3, 3, 4, 4, 5, 6. Write ...

20 days ago

Solved

Integer Persistence, Product

Let's construct a sequence as follows: is a given natural number, and is the product of the digits of . The persistence of i...

20 days ago

Solved

Hofstadter Female and Male sequences

The Hofstadter Female (F) and Male (M) sequences are defined as follows Write a function to compute for a given n. See http...

20 days ago

Solved

Spreadsheet Column Number

Spreadsheet uses an alphabetic naming system for columns, starting with 'A', 'B', 'C', etc. The column names continue like 'AB',...

20 days ago

Solved

Stern-Brocot Sequence

The Stern-Brocot diatomic sequence is defined as follows: The first elements of the sequence are 0, 1, 1, 2, 1, 3, 2, 3, 1, 4...

20 days ago

Solved

Hofstadter Q sequence

The Hofstadter G sequence is defined as follows: The first elements of the sequence are 1, 1, 2, 3, 3, 4, 5, 5, 6, 6. Write ...

21 days ago

Solved

Fangs of a vampire number

A vampire number is a number v that is the product of two numbers x and y such that the following conditions are satisfied: at ...

26 days ago

Solved

Find Next Strictly Greater Element

Given an array of numbers, create a new array where each element represents the next strictly greater element to the right of th...

1 month ago

Solved

CamelCase to snake_case convention

The CamelCase naming convention capitalizes the first letter of each word. In snake_case convention, words are written in lowerc...

1 month ago

Solved

Absolute Sorting

Given an array with various numbers, your have to sort it by absolute value in ascending order. For example, for the array [-2...

1 month ago

Solved

Reverse Integer

You are given an integer, reverse its digits. For negative integers, the sign should remain in the front. For instance, 12340 s...

1 month ago

Solved

Battery Charge Indicator

Write a function called battery_charge that visually represents the charge of a battery. The function takes an integer paramete...

1 month ago

Solved

snake_case to CamelCase convention

The snake_case naming convention writes words in lowercase and separates them with underscores. In CamelCase convention, the fir...

1 month ago

Solved

Calculate the Levenshtein distance between two strings

This problem description is lifted from http://en.wikipedia.org/wiki/Levenshtein_distance. The Levenshtein distance between two...

2 months ago

Solved

List the dopey numbers

If vile numbers have binary representations that end with an even number of zeros (even vile), then numbers with binary represe...

2 months ago

Solved

Find the smallest integer m such that n divides m!

Write a function that takes an integer and finds the smallest integer whose factorial is divisible by . For example, if , then...

2 months ago

Solved

Next Tribonacci Number

The "Tribonacci" sequence is an extension of the idea of the Fibonacci sequence: That is, each new term is the sum of the thr...

2 months ago

Solved

Update course numbers and abbreviations

Suppose that the educational institution where you teach purchases new software to handle many essential functions, including co...

2 months ago

Solved

Find the circle inscribed in a triangle

Write a function that takes the x- and y-coordinates of three points describing the vertices of a triangle and returns the cente...

2 months ago