1 files changed, 45 insertions, 0 deletions
diff --git a/challenge-100/dave-jacoby/node/ch-2.js b/challenge-100/dave-jacoby/node/ch-2.js
new file mode 100644
index 0000000000..5f023375c6
--- /dev/null
+++ b/challenge-100/dave-jacoby/node/ch-2.js
@@ -0,0 +1,45 @@
+"use strict";
+
+var input = [];
+input.push([[1], [2, 4], [6, 4, 9], [5, 1, 7, 2]]);
+input.push([[3], [3, 1], [5, 2, 3], [4, 3, 1, 3]]);
+
+for (let i = 0; i < input.length; i++) {
+  triangle_sum(input[i]);
+}
+
+function triangle_sum(input) {
+  let results = triangle(input, 0, 0, []).sort(function(a, b) { return a - b });
+  console.log(input);
+  console.log(results[0]);
+  console.log("");
+}
+
+function triangle(input, x, y, path) {
+  if (x > 5) {
+    return;
+  }
+  let output = [];
+
+  if ("undefined" === typeof input[x]) {
+    output.push(path.reduce((a, b) => a + b, 0));
+  } else {
+    let v = input[x][y];
+    let next_path = [...path];
+    next_path.push(v);
+
+    output.push(...triangle(input, x + 1, y, next_path));
+    output.push(...triangle(input, x + 1, y + 1, next_path));
+  }
+  return output;
+}
+
+
+// [ [ 1 ], [ 2, 4 ], [ 6, 4, 9 ], [ 5, 1, 7, 2 ] ]
+// 8
+// 
+// [ [ 3 ], [ 3, 1 ], [ 5, 2, 3 ], [ 4, 3, 1, 3 ] ]
+// 7
+
+
+