From f9e549fddd175814c99826198c80ebdd5d32f450 Mon Sep 17 00:00:00 2001
From: Vodimed <67785939+anna-vodimed@users.noreply.github.com>
Date: 2021年8月14日 08:50:29 +0000
Subject: [PATCH 1/3] add Project Euler problem8 solution
---
 Project-Euler/Problem8.js &#124; 48 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Project-Euler/Problem8.js
diff --git a/Project-Euler/Problem8.js b/Project-Euler/Problem8.js
new file mode 100644
index 0000000000..bfdc4628cf
--- /dev/null
+++ b/Project-Euler/Problem8.js
@@ -0,0 +1,48 @@
+/*
+Project Euler Problem 8: https://projecteuler.net/problem=8
+Largest product in a series
+*/
+
+// Get the number into an array
+const grid = `
+73167176531330624919225119674426574742355349194934
+96983520312774506326239578318016984801869478851843
+85861560789112949495459501737958331952853208805511
+12540698747158523863050715693290963295227443043557
+66896648950445244523161731856403098711121722383113
+62229893423380308135336276614282806444486645238749
+30358907296290491560440772390713810515859307960866
+70172427121883998797908792274921901699720888093776
+65727333001053367881220235421809751254540594752243
+52584907711670556013604839586446706324415722155397
+53697817977846174064955149290862569321978468622482
+83972241375657056057490261407972968652414535100474
+82166370484403199890008895243450658541227588666881
+16427171479924442928230863465674813919123162824586
+17866458359124566529476545682848912883142607690042
+24219022671055626321111109370544217506941658960408
+07198403850962455444362981230987879927244284909188
+84580156166097919133875499200524063689912560717606
+05886116467109405077541002256983155200055935729725
+71636269561882670428252483600823257530420752963450
+`.trim().split("\n").join("").split(/[01]+/)
+
+const x = 13
+let max = 0
+
+function largestProduct(){
+ grid.forEach((str) => {
+ if (str.length < x) { + return + } + for (let i = 0, l = str.length; i <= l - x; i++) { + // substring() method returns the part of the string between the start and end indexes + const digits = str.substring(i, i + x).split("") + const product = digits.reduce((prod, c) => prod * parseInt(c), 1)
+ // update the max variable in case if our product is larger then max
+ if (product> max) max = product
+ }
+ })
+ return max
+}
+console.log(largestProduct()) // output 23514624000
From 5dd73d9550e03e4d5f1facc4d0325f73ae8028c0 Mon Sep 17 00:00:00 2001
From: hannah solo <hannah@localhost.localdomain>
Date: 2021年8月14日 15:08:26 +0300
Subject: [PATCH 2/3] fix code formatting
---
 Project-Euler/Problem8.js &#124; 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/Project-Euler/Problem8.js b/Project-Euler/Problem8.js
index bfdc4628cf..a2a6326006 100644
--- a/Project-Euler/Problem8.js
+++ b/Project-Euler/Problem8.js
@@ -25,19 +25,19 @@ const grid = `
 84580156166097919133875499200524063689912560717606
 05886116467109405077541002256983155200055935729725
 71636269561882670428252483600823257530420752963450
-`.trim().split("\n").join("").split(/[01]+/)
+`.trim().split('\n').join('').split(/[01]+/)
 
 const x = 13
 let max = 0
 
-function largestProduct(){
+function largestProduct () {
 grid.forEach((str) => {
 if (str.length < x) { return } for (let i = 0, l = str.length; i <= l - x; i++) { // substring() method returns the part of the string between the start and end indexes - const digits = str.substring(i, i + x).split("") + const digits = str.substring(i, i + x).split('') const product = digits.reduce((prod, c) => prod * parseInt(c), 1)
 // update the max variable in case if our product is larger then max
 if (product> max) max = product
From d622f50bbbd98ed45d983d828a089ef6802a5508 Mon Sep 17 00:00:00 2001
From: Rak Laptudirm <raklaptudirm@gmail.com>
Date: Sun, 5 Sep 2021 13:35:25 +0530
Subject: [PATCH 3/3] chore: easier split
---
 Project-Euler/Problem8.js &#124; 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Project-Euler/Problem8.js b/Project-Euler/Problem8.js
index a2a6326006..95e2ddd7f8 100644
--- a/Project-Euler/Problem8.js
+++ b/Project-Euler/Problem8.js
@@ -25,7 +25,7 @@ const grid = `
 84580156166097919133875499200524063689912560717606
 05886116467109405077541002256983155200055935729725
 71636269561882670428252483600823257530420752963450
-`.trim().split('\n').join('').split(/[01]+/)
+`.trim().replace(/\n/g, "").split("")
 
 const x = 13
 let max = 0
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