Merge remote-tracking branch 'upstream/master'

1 files changed, 24 insertions, 0 deletions

diff --git a/challenge-014/zapwai/javascript/ch-1.js b/challenge-014/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..1e48037b13
--- /dev/null
+++ b/challenge-014/zapwai/javascript/ch-1.js
@@ -0,0 +1,24 @@
+function vaneck(seq) {
+    if (seq.length == 1)
+	seq.push(0);
+    else {
+	let pop = seq[seq.length - 1];
+	let done_flag = false;
+	let j = seq.length - 2;
+	while (j >= 0) {
+	    if (!done_flag && (pop == seq[j])) {
+		done_flag = true;
+		seq.push(seq.length - 1 - j);
+	    }
+	    j--;
+	}
+	if (!done_flag)
+	    seq.push(0);
+    }
+}
+let N = 19;
+let seq = [0];
+for (let i = 0; i < N; i++) {
+    vaneck(seq);
+}
+console.log(seq);