Merge remote-tracking branch 'upstream/master'

2 files changed, 46 insertions, 0 deletions

diff --git a/challenge-112/abigail/node/ch-1.js b/challenge-112/abigail/node/ch-1.js
new file mode 100644
index 0000000000..ce79942bfe
--- /dev/null
+++ b/challenge-112/abigail/node/ch-1.js
@@ -0,0 +1,28 @@
+#!/usr/local/bin/node
+
+//
+// See ../README.md
+//
+
+//
+// Run as: node ch-1.js < input-file
+//
+
+  require ('readline')
+. createInterface ({input: process . stdin})   
+. on ('line', _ => {
+    let parts = _ . split (/\/+/)              // Split on slash.
+    let parts2 = []
+    parts . every (_ => {
+        if (_ == "." || _ == "") {             // Skip current directory,
+            return true                        // and empty parts.
+        }
+        if (_ == "..") {                       // Pop parent directory.
+            parts2 . pop ()
+            return true
+        }
+        parts2 . push (_)                      // Copy part.
+        return true
+    })
+    console . log ("/" + parts2 . join ("/"))  // Print result.
+})
diff --git a/challenge-112/abigail/node/ch-2.js b/challenge-112/abigail/node/ch-2.js
new file mode 100644
index 0000000000..2c06c8fdcd
--- /dev/null
+++ b/challenge-112/abigail/node/ch-2.js
@@ -0,0 +1,18 @@
+#!/usr/local/bin/node
+
+//
+// See ../README.md
+//
+
+//
+// Run as: node ch-2.js < input-file
+//
+
+let SQRT5 = Math . sqrt (5)
+let PHI   = (1 + SQRT5) / 2
+
+  require ('readline')
+. createInterface ({input: process . stdin})   
+. on ('line', _ => console . log (
+    Math . round (Math . pow (PHI, +_ + 1) / SQRT5)
+))