challenges

commit b891b2b55ffb05828bc29e539cc2003b4aa95a61
parent 9b916c1057af430ffa5b94bb9f9cf5218a9d9916
Author: Ryan Wolf <johnwayne@pseudony.ms>
Date:   Sun, 20 Dec 2015 02:23:03 -0500

8.php gave the wrong output\! rewrote in go instead of trying to debug my old php

Diffstat:
A
projecteuler/008/008.go
 | 
45
+++++++++++++++++++++++++++++++++++++++++++++
D
projecteuler/008/008.php
 | 
23
-----------------------

2 files changed, 45 insertions(+), 23 deletions(-)
diff --git a/projecteuler/008/008.go b/projecteuler/008/008.go
@@ -0,0 +1,45 @@
+package main
+
+import "fmt"
+import "strings"
+import "strconv"
+
+func main() {
+  s := []rune(strings.Join([]string{
+    "73167176531330624919225119674426574742355349194934",
+    "96983520312774506326239578318016984801869478851843",
+    "85861560789112949495459501737958331952853208805511",
+    "12540698747158523863050715693290963295227443043557",
+    "66896648950445244523161731856403098711121722383113",
+    "62229893423380308135336276614282806444486645238749",
+    "30358907296290491560440772390713810515859307960866",
+    "70172427121883998797908792274921901699720888093776",
+    "65727333001053367881220235421809751254540594752243",
+    "52584907711670556013604839586446706324415722155397",
+    "53697817977846174064955149290862569321978468622482",
+    "83972241375657056057490261407972968652414535100474",
+    "82166370484403199890008895243450658541227588666881",
+    "16427171479924442928230863465674813919123162824586",
+    "17866458359124566529476545682848912883142607690042",
+    "24219022671055626321111109370544217506941658960408",
+    "07198403850962455444362981230987879927244284909188",
+    "84580156166097919133875499200524063689912560717606",
+    "05886116467109405077541002256983155200055935729725",
+    "71636269561882670428252483600823257530420752963450",
+  }, ""))
+  mp := 1
+  for i := range s {
+    if i > len(s) - 13 {
+      break
+    }
+    p := 1
+    for j := i; j < i + 13; j++ {
+      d, _ := strconv.ParseInt(string(s[j]), 10, 32)
+      p = p * int(d)
+    }
+    if p > mp {
+      mp = p
+    }
+  }
+  fmt.Printf("%d", mp)
+}
diff --git a/projecteuler/008/008.php b/projecteuler/008/008.php
@@ -1,23 +0,0 @@
-<?php
-/*
-Approach on 8/30/09:
-keep track of first character, iterate along one number at a time
-*/
-
-$bigString = '7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450';
-$bigArray = str_split($bigString);
-$currentFive = array_map('intval', array_splice($bigArray, 0, 5));
-$tmpProduct = array_product($currentFive);
-$greatestProduct = $tmpProduct;
-
-while (count($bigArray) > 0) {
-  array_shift($currentFive);
-  $currentFive[] = intval(array_shift($bigArray));
-  $tmpProduct = array_product($currentFive);
-
-  if ($tmpProduct > $greatestProduct) {
-    $greatestProduct = $tmpProduct;
-  }
-}
-
-print "$greatestProduct\n";