From b7309f0018722801232f9de6219666e6ef69fd32 Mon Sep 17 00:00:00 2001 From: Omkarnath Parida Date: Fri, 7 Oct 2022 20:36:47 +0530 Subject: [PATCH 1/4] =?UTF-8?q?=F0=9F=93=A6=20NEW:=20Added=20solution=20fo?= =?UTF-8?q?r=20ProjectEuler-007?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- Project-Euler/Problem007.js | 27 +++++++++++++++++++++++++++ Project-Euler/test/Problem007.test.js | 17 +++++++++++++++++ 2 files changed, 44 insertions(+) create mode 100644 Project-Euler/Problem007.js create mode 100644 Project-Euler/test/Problem007.test.js diff --git a/Project-Euler/Problem007.js b/Project-Euler/Problem007.js new file mode 100644 index 0000000000..48f27d56c1 --- /dev/null +++ b/Project-Euler/Problem007.js @@ -0,0 +1,27 @@ +import { PrimeCheck } from '../Maths/PrimeCheck.js' + +/** + * Find nth Prime Number + * + * P.S.(Project Euler - 007): + * By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13. + * What is the 10001st prime number? + * + * @param {Number} n + * @returns {Number} returns the nth prime number + */ +export const nthPrime = (n) => { + if (n < 1) { + return 'Invalid Input' + } + + let count = 0 + let inc = 2 + while (count < n) { + if (PrimeCheck(inc)) { + count++ + } + inc++ + } + return inc - 1 +} diff --git a/Project-Euler/test/Problem007.test.js b/Project-Euler/test/Problem007.test.js new file mode 100644 index 0000000000..e979e45728 --- /dev/null +++ b/Project-Euler/test/Problem007.test.js @@ -0,0 +1,17 @@ +import { nthPrime } from '../Problem007.js' + +describe('checking nth prime number', () => { + it('should be invalid input if number is negative', () => { + expect(nthPrime(-3)).toBe('Invalid Input') + }) + it('should be invalid input if number is 0', () => { + expect(nthPrime(0)).toBe('Invalid Input') + }) + test('if the number is greather than 0', () => { + expect(nthPrime(10)).toBe(29) + }) + // Project Euler Condition Check + test('if the number is 10001', () => { + expect(nthPrime(10001)).toBe(104743) + }) +}) From d3a3b331c7d964262f524c37afb767c87994b6c3 Mon Sep 17 00:00:00 2001 From: Omkarnath Parida Date: Fri, 7 Oct 2022 20:45:06 +0530 Subject: [PATCH 2/4] =?UTF-8?q?=F0=9F=90=9B=20FIX:=20Spelling=20mistake=20?= =?UTF-8?q?fixes?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- Project-Euler/test/Problem007.test.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Project-Euler/test/Problem007.test.js b/Project-Euler/test/Problem007.test.js index e979e45728..6c48f1e786 100644 --- a/Project-Euler/test/Problem007.test.js +++ b/Project-Euler/test/Problem007.test.js @@ -7,7 +7,7 @@ describe('checking nth prime number', () => { it('should be invalid input if number is 0', () => { expect(nthPrime(0)).toBe('Invalid Input') }) - test('if the number is greather than 0', () => { + test('if the number is greater than 0', () => { expect(nthPrime(10)).toBe(29) }) // Project Euler Condition Check From e9b5a6a92174ff87a4d9b27cee8e596ad8fa76a3 Mon Sep 17 00:00:00 2001 From: Omkarnath Parida Date: Fri, 7 Oct 2022 23:02:44 +0530 Subject: [PATCH 3/4] =?UTF-8?q?=F0=9F=91=8C=20IMPROVE:=20changed=20variabl?= =?UTF-8?q?e=20name=20from=20`inc`=20to=20`candidateValue`=20and=20thrown?= =?UTF-8?q?=20error=20in=20case=20of=20invalid=20input?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- Project-Euler/Problem007.js | 10 +++++----- Project-Euler/test/Problem007.test.js | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/Project-Euler/Problem007.js b/Project-Euler/Problem007.js index 48f27d56c1..95e3f10562 100644 --- a/Project-Euler/Problem007.js +++ b/Project-Euler/Problem007.js @@ -12,16 +12,16 @@ import { PrimeCheck } from '../Maths/PrimeCheck.js' */ export const nthPrime = (n) => { if (n < 1) { - return 'Invalid Input' + throw new Error('Invalid Input') } let count = 0 - let inc = 2 + let candidateValue = 2 while (count < n) { - if (PrimeCheck(inc)) { + if (PrimeCheck(candidateValue)) { count++ } - inc++ + candidateValue++ } - return inc - 1 + return candidateValue - 1 } diff --git a/Project-Euler/test/Problem007.test.js b/Project-Euler/test/Problem007.test.js index 6c48f1e786..191d1e06af 100644 --- a/Project-Euler/test/Problem007.test.js +++ b/Project-Euler/test/Problem007.test.js @@ -2,10 +2,10 @@ import { nthPrime } from '../Problem007.js' describe('checking nth prime number', () => { it('should be invalid input if number is negative', () => { - expect(nthPrime(-3)).toBe('Invalid Input') + expect(() => nthPrime(-3)).toThrowError('Invalid Input') }) it('should be invalid input if number is 0', () => { - expect(nthPrime(0)).toBe('Invalid Input') + expect(() => nthPrime(0)).toThrowError('Invalid Input') }) test('if the number is greater than 0', () => { expect(nthPrime(10)).toBe(29) From e99c7225579aa6da265352daa5140c037281c311 Mon Sep 17 00:00:00 2001 From: Omkarnath Parida Date: Fri, 7 Oct 2022 23:23:09 +0530 Subject: [PATCH 4/4] =?UTF-8?q?=F0=9F=91=8C=20IMPROVE:=20Modified=20the=20?= =?UTF-8?q?code?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- Project-Euler/Problem007.js | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Project-Euler/Problem007.js b/Project-Euler/Problem007.js index 95e3f10562..009c1a896e 100644 --- a/Project-Euler/Problem007.js +++ b/Project-Euler/Problem007.js @@ -16,12 +16,12 @@ export const nthPrime = (n) => { } let count = 0 - let candidateValue = 2 + let candidateValue = 1 while (count < n) { + candidateValue++ if (PrimeCheck(candidateValue)) { count++ } - candidateValue++ } - return candidateValue - 1 + return candidateValue }