From d0588d654684a5a6d5dfec3b983cb4f41d057ca6 Mon Sep 17 00:00:00 2001
From: Piotr Russ <piotr.russ@betvictor.com>
Date: Thu, 10 Dec 2020 20:48:06 +0100
Subject: day9

---
 day9/day9-2.js | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 day9/day9-2.js

(limited to 'day9/day9-2.js')

diff --git a/day9/day9-2.js b/day9/day9-2.js
new file mode 100644
index 0000000..a4626a7
--- /dev/null
+++ b/day9/day9-2.js
@@ -0,0 +1,44 @@
+const data = require('./data')
+const test = (d, i, nr) => {
+  if (i > nr) {
+    let sums = []
+    for (let a = i - nr - 1; a < i; a++) {
+      for (let b = i - nr - 1; b < i; b++) {
+        if (a !== b) {
+          sums.push(data[a] + data[b])
+        }
+      }
+    }
+    return sums.indexOf(data[i]) > -1 ? false : true
+  } else {
+    return false
+  }
+}
+
+const findNr = (nr) => (
+  data.find((d, i) => {
+    return test(d, i, nr)
+  })
+)
+
+const number = (findNr(25))
+
+//part2
+
+let result
+data.find((d, i) => {
+  let sum = 0
+  for (let a = i; a < data.length; a++) {
+    sum += data[a]
+    if (sum === number) {
+      const range = data.slice(i, a)
+      const min = Math.min(...range)
+      const max = Math.max(...range)
+      result = min + max
+      return true
+    }
+  }
+})
+
+console.log(result)
+
-- 
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