Frédéric G. MARAND
c5d29954a9
14: Difference of squares.
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3 weeks ago | |
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| .exercism | 3 weeks ago | |
| .yarn | 3 weeks ago | |
| .eslintignore | 3 weeks ago | |
| .eslintrc.cjs | 3 weeks ago | |
| HELP.md | 3 weeks ago | |
| README.md | 3 weeks ago | |
| babel.config.cjs | 3 weeks ago | |
| difference-of-squares.test.ts | 3 weeks ago | |
| difference-of-squares.ts | 3 weeks ago | |
| jest.config.cjs | 3 weeks ago | |
| package.json | 3 weeks ago | |
| tsconfig.json | 3 weeks ago | |
README.md
Difference of Squares
Welcome to Difference of Squares on Exercism's TypeScript 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.
Source
Contributed to by
Based on
Problem 6 at Project Euler - https://projecteuler.net/problem=6