From b50c9c40ae474cd0e4eb543504e47dc6dbea31e9 Mon Sep 17 00:00:00 2001
From: Piotr Russ <piotr.russ@betvictor.com>
Date: Thu, 10 Dec 2020 20:24:16 +0100
Subject: day8

---
 day8/day8-2.js | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 day8/day8-2.js

(limited to 'day8/day8-2.js')

diff --git a/day8/day8-2.js b/day8/day8-2.js
new file mode 100644
index 0000000..c092f65
--- /dev/null
+++ b/day8/day8-2.js
@@ -0,0 +1,44 @@
+const data = require('./data')
+const array = data.map(s => s.split(' ')).map(s => [s[0], parseInt(s[1])])
+let cont, field, accu, spl, splitted
+let success = false, change = 0
+
+while (!success && change < array.length) {
+  splitted = JSON.parse(JSON.stringify(array))
+  if (splitted[change][0] === 'nop') {
+    splitted[change][0] = 'jmp'
+  } else if (splitted[change][0] === 'jmp') {
+    splitted[change][0] = 'nop'
+  }
+  cont = true
+  field = 0
+  accu = 0
+  spl = JSON.parse(JSON.stringify(splitted))
+  while (cont && !spl[field][2]) {
+    if (field === array.length - 1) {
+      success = accu
+      cont = false
+    }
+
+    switch(spl[field][0]) {
+      case 'nop':
+        spl[field].push(true)
+        field += 1
+        break
+      case 'acc':
+        spl[field].push(true)
+        accu += spl[field][1]
+        field += 1
+        break
+      case 'jmp':
+        spl[field].push(true)
+        field += spl[field][1]
+        break;
+      default:
+        cont = false
+    }
+  }
+  change += 1
+}
+
+console.log(success)
-- 
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