all done

day17/part1.js

@@ -0,0 +1,8 @@
+var input = 344;
+var arr = [0];
+var pos = 0;
+for(var i = 1; i <= 2017; i++){
+	pos = (pos+input)%arr.length + 1;
+	arr.splice(pos, 0, i);
+}
+console.log(arr[pos+1]);

day17/part2.js

@@ -0,0 +1,10 @@
+var input = 344;
+var len = 1;
+var pos = 0;
+for(var i = 1; i <= 50000000; i++){
+	pos = (pos+input)%len + 1;
+	len++;
+	if(pos == 1){
+		console.log(i);
+	}
+}