Ben Harris b8b45b106c | ||
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.exercism | ||
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DifferenceOfSquares.cs | ||
DifferenceOfSquares.csproj | ||
DifferenceOfSquaresTests.cs | ||
HELP.md | ||
README.md |
README.md
Difference Of Squares
Welcome to Difference Of Squares on Exercism's C# Track.
If you need help running the tests or submitting your code, check out HELP.md
.
Instructions
Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.
The square of the sum of the first ten natural numbers is (1 + 2 + ... + 10)² = 55² = 3025.
The sum of the squares of the first ten natural numbers is 1² + 2² + ... + 10² = 385.
Hence the difference between the square of the sum of the first ten natural numbers and the sum of the squares of the first ten natural numbers is 3025 - 385 = 2640.
You are not expected to discover an efficient solution to this yourself from first principles; research is allowed, indeed, encouraged. Finding the best algorithm for the problem is a key skill in software engineering.
This exercise requires you to process a collection of data. You can simplify your code by using LINQ (Language Integrated Query). For more information, see [this page] (https://docs.microsoft.com/en-us/dotnet/articles/standard/using-linq).
Source
Created by
- @mikecoop
Contributed to by
- @balazsbotond
- @ErikSchierboom
- @felix91gr
- @j2jensen
- @jwood803
- @kytrinyx
- @robkeim
- @wolf99
Based on
Problem 6 at Project Euler - http://projecteuler.net/problem=6