1 files changed, 70 insertions, 0 deletions
diff --git a/challenge-214/roger-bell-west/javascript/ch-2.js b/challenge-214/roger-bell-west/javascript/ch-2.js
new file mode 100755
index 0000000000..aabc5e43dc
--- /dev/null
+++ b/challenge-214/roger-bell-west/javascript/ch-2.js
@@ -0,0 +1,70 @@
+#! /usr/bin/node
+
+"use strict"
+
+function collectpoints(a) {
+    let m = [];
+    let st = 0;
+    while (st < a.length) {
+        const k = a[st];
+        let e = st;
+        while (e < a.length && a[e] == k) {
+            e += 1;
+        }
+        m.push([k, e - st]);
+        st = e;
+    }
+    let rv = 0;
+    let stack = [[m, 0]];
+    while (stack.length > 0) {
+        const s = stack.pop();
+        if (s[0].length == 0) {
+            rv = Math.max(rv, s[1]);
+        } else {
+            for (let i = 0; i < s[0].length; i++) {
+                let ss = JSON.parse(JSON.stringify(s));
+                ss[1] += ss[0][i][1] * ss[0][i][1];
+                ss[0].splice(i, 1);
+                let j = i;
+                while (true) {
+                    if (j > 0 &&
+                        j < ss[0].length &&
+                        ss[0][j][0] == ss[0][j - 1][0]) {
+                        ss[0][j][1] += ss[0][j - 1][1];
+                        ss[0].splice(j - 1, 1);
+                        j -= 1;
+                    } else {
+                        break;
+                    }
+                }
+                stack.push(ss);
+            }
+        }
+    }
+    return rv;
+}
+
+if (collectpoints([2, 4, 3, 3, 3, 4, 5, 4, 2]) == 23) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (collectpoints([1, 2, 2, 2, 2, 1]) == 20) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (collectpoints([1]) == 1) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (collectpoints([2, 2, 2, 1, 1, 2, 2, 2]) == 40) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write("\n");