Week 3: copied solutions from week 123.

Week 123 has exactly the same challenge. Since I prefer that solution,
I copied those results. Tests adjusted accordingly.

1 files changed, 19 insertions, 10 deletions

diff --git a/challenge-003/abigail/node/ch-1.js b/challenge-003/abigail/node/ch-1.js
index a1ffe969ac..e44318f34c 100644
--- a/challenge-003/abigail/node/ch-1.js
+++ b/challenge-003/abigail/node/ch-1.js
@@ -1,21 +1,30 @@
 #!/usr/local/bin/node
 
 //
-// See ../README.md
+// See https://theweeklychallenge.org/blog/perl-weekly-challenge-003
 //
 
 //
 // Run as: node ch-1.js < input-file
 //
 
-require ('readline')
+let ugly   = [1]
+let next_2 =  0
+let next_3 =  0
+let next_5 =  0
+
+  require ('readline')
 . createInterface ({input: process . stdin})   
-. on ('line', max => {
-    for (let base2 = 1; base2 <= max; base2 *= 2) {
-        for (let base3 = base2; base3 <= max; base3 *= 3) {
-            for (let base5 = base3; base5 <= max; base5 *= 5) {
-                console . log (base5)
-            }
-        }
+. on              ('line', n => {
+    n =+ n
+    while (ugly . length < n) {
+        ugly . push (Math . min (2 * ugly [next_2], 
+                                 3 * ugly [next_3],
+                                 5 * ugly [next_5]))
+
+        if (2 * ugly [next_2] <= ugly [ugly . length - 1]) {next_2 ++}
+        if (3 * ugly [next_3] <= ugly [ugly . length - 1]) {next_3 ++}
+        if (5 * ugly [next_5] <= ugly [ugly . length - 1]) {next_5 ++}
     }
-});
+    console . log (ugly [n - 1])
+})