1st commit on 113_node

1 files changed, 20 insertions, 0 deletions

diff --git a/challenge-113/stuart-little/node/ch-1.js b/challenge-113/stuart-little/node/ch-1.js
new file mode 100755
index 0000000000..319423ece6
--- /dev/null
+++ b/challenge-113/stuart-little/node/ch-1.js
@@ -0,0 +1,20 @@
+#!/usr/bin/env node
+
+// run <script> <digit>
+
+function lastDigSumm(nr, dig, nrSummands) {
+    return ((nr - nrSummands * dig) % 10 == 0) && (nrSummands * dig <= nr) && (nrSummands * ((dig -1) * 10 + dig) >= nr)
+}
+
+function lastDig(nr,dig) {
+    return [...Array(9)].map((_,i) => i+1).filter(x => lastDigSumm(nr,dig,x)).length >= 1
+}
+
+function sol(nr,dig) {
+    if (dig == 0) {
+	return (nr >= 101 || (nr % 10 == 0))
+    }        
+    return ((nr >= dig * 11) || lastDig(nr,dig))
+}
+
+console.log(sol(...process.argv.slice(2).map(x => parseInt(x))) ? 1 : 0)