2.1 KiB
Difference Of Squares
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.
Rust Installation
Refer to the exercism help page for Rust installation and learning resources.
Writing the Code
Execute the tests with:
$ cargo test
All but the first test have been ignored. After you get the first test to
pass, remove the ignore flag (#[ignore]) from the next test and get the tests
to pass again. The test file is located in the tests directory. You can
also remove the ignore flag from all the tests to get them to run all at once
if you wish.
Make sure to read the Crates and Modules chapter if you haven't already, it will help you with organizing your files.
Feedback, Issues, Pull Requests
The exercism/xrust repository on GitHub is the home for all of the Rust exercises. If you have feedback about an exercise, or want to help implement new exercises, head over there and create an issue. Members of the rust track team are happy to help!
If you want to know more about Exercism, take a look at the contribution guide.
Source
Problem 6 at Project Euler http://projecteuler.net/problem=6
Submitting Incomplete Problems
It's possible to submit an incomplete solution so you can see how others have completed the exercise.