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Name: Alex Landherr
Type: User
Bio: Programmer learning Python (on Raspberry Pi:s & other systems), Java (on Windows 10) & C++ on Linux.
Twitter: AlexLandherr
Location: Sweden
Name: Alex Landherr
Type: User
Bio: Programmer learning Python (on Raspberry Pi:s & other systems), Java (on Windows 10) & C++ on Linux.
Twitter: AlexLandherr
Location: Sweden
Program that prints out the 007 James Bond logo in a terminal.
Evaluate the sum of all the amicable numbers under 10000.
Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2.
How many circular primes are there below one million?
What is the largest 1 to 9 pandigital 9-digit number that can be formed as the concatenated product of an integer with (1, 2,...,n) where n > 1?
Find the denominator of the product of the four non-trivial fractions when said product is expressed in its lowest common terms.
What is the sum of the numbers on the diagonals in a 1001 by 1001 spiral formed in the same way?
2^15 = 32768 and the sum of the digits is 3+2+7+6+8 = 26. What is the sum of the digits of the number 2^1000?
How many distinct terms are in the sequence generated by a^b for 2 ≤ a ≤ 100 and 2 ≤ b ≤ 100?
What is the smallest number that can be divided by each of the numbers from 1 through 20 without a remainder?
Find the sum of the digits in the number 100!.
Find the sum of all numbers which are equal to the sum of the factorial of their digits.
What is the index of the first term in the Fibonacci sequence to contain 1000 digits?
What is the sum of all even Fibonacci numbers less than 4,000,000?
Simple tool to generate test file of given size in bytes.
Work out the first ten digits of the sum of the following one-hundred 50-digit numbers.
A weather satellite image downloader.
Find the thirteen (13) adjacent digits in the 1000-digit number that have the greatest product. What is the value of this product?
What is the greatest product of four adjacent numbers in the same direction (up, down, left, right or diagonally) in the 20x20 grid?
Starting in the top left corner of a 2x2 grid, and only being able to move to the right and down, there are exactly 6 routes to the bottom right corner. How many such routes are there through a 20x20 grid?
Simple little JavaScript & HTML/CSS website letting you create, complete, remove and restore to-do items.
Which starting number, under one million, produces the longest chain?
What is the sum of the multiples of 3 or 5 under 1000?
What is the total of all the name scores in the file?
Find the sum of all the positive integers which cannot be written as the sum of two abundant numbers.
What is the millionth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?
What is the 10,001st prime number?
Find the largest palindrome number that is a product of two three-digit numbers.
Find the sum of all products whose multiplicand/multiplier/product identity can be written as a 1 through 9 pandigital.
Tool to generate random 4 digit passcodes.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.