README.md (1056B) - raw

1 # Difference Of Squares 2 3 Welcome to Difference Of Squares on Exercism's Perl 5 Track. 4 If you need help running the tests or submitting your code, check out `HELP.md`. 5 6 ## Instructions 7 8 Find the difference between the square of the sum and the sum of the squares of the first N natural numbers. 9 10 The square of the sum of the first ten natural numbers is 11 (1 + 2 + ... + 10)² = 55² = 3025. 12 13 The sum of the squares of the first ten natural numbers is 14 1² + 2² + ... + 10² = 385. 15 16 Hence the difference between the square of the sum of the first 17 ten natural numbers and the sum of the squares of the first ten 18 natural numbers is 3025 - 385 = 2640. 19 20 You are not expected to discover an efficient solution to this yourself from 21 first principles; research is allowed, indeed, encouraged. Finding the best 22 algorithm for the problem is a key skill in software engineering. 23 24 ## Source 25 26 ### Created by 27 28 - @bistik 29 30 ### Contributed to by 31 32 - @kytrinyx 33 - @m-dango 34 - @rfilipo 35 - @Scientifica96 36 37 ### Based on 38 39 Problem 6 at Project Euler - http://projecteuler.net/problem=6