Weekly Challenge Blast from the Past

2 files changed, 51 insertions, 0 deletions

diff --git a/challenge-006/zapwai/javascript/ch-1.js b/challenge-006/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..769640f83a
--- /dev/null
+++ b/challenge-006/zapwai/javascript/ch-1.js
@@ -0,0 +1,41 @@
+let list = [1,2,3,4,9,10,14,15,16];
+proc(list);
+
+function proc(list) {
+    console.log("Input:", list);
+    let output = "";
+
+    let init_flag = false;
+    let cont_flag = false;
+
+    for (let i = 0; i < -1 + list.length; i++) {
+	let diff = list[i+1] - list[i];
+	if (init_flag && cont_flag) {
+	    if (diff != 1) {
+		init_flag = false;
+		cont_flag = false;
+		output += "-" + list[i];
+	    }
+	} else if (init_flag) {
+	    if (diff == 1)
+		cont_flag = true;
+	    else {
+		init_flag = false;
+		output += "," + list[i];
+	    }
+	} else {
+	    if (i != 0)
+		output += ",";
+	    output += list[i];
+	    if (diff == 1)
+		init_flag = true;
+	}
+    }
+    if (init_flag && cont_flag)
+	output += "-";
+    else 
+	output += ","; 
+    output += list[list.length - 1];    
+    console.log("Output:", output);    
+}
+
diff --git a/challenge-006/zapwai/javascript/ch-2.js b/challenge-006/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..1532859946
--- /dev/null
+++ b/challenge-006/zapwai/javascript/ch-2.js
@@ -0,0 +1,10 @@
+Decimal.set({ precision: 35 });
+const x = new Decimal("163");
+const pi = new Decimal("3.141592653589793238462643383279502884197169");
+const r = pi.times(x.sqrt());
+const e = new Decimal("2.7182818284590452353602874713526624977572");
+const result = e.pow(r);
+console.log(result.toString());
+
+// Add this line to the html file to include the Decimal library:
+// <script src="https://cdnjs.cloudflare.com/ajax/libs/decimal.js/10.3.1/decimal.min.js"></script>