From b2e06356b0d086886706c07529e66c250c5d55fc Mon Sep 17 00:00:00 2001
From: Ivan Reshetnikov <ordinarydev@protonmail.com>
Date: Wed, 7 Feb 2024 21:48:43 +0500
Subject: [PATCH] leetcode: solve problem 2648

---
 .../2648-generate-fibonacci-sequence/main.ts  | 19 +++++++++++++++++++
 .../readme.md                                 |  9 +++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 leetcode/2648-generate-fibonacci-sequence/main.ts
 create mode 100644 leetcode/2648-generate-fibonacci-sequence/readme.md

diff --git a/leetcode/2648-generate-fibonacci-sequence/main.ts b/leetcode/2648-generate-fibonacci-sequence/main.ts
new file mode 100644
index 0000000..542af5a
--- /dev/null
+++ b/leetcode/2648-generate-fibonacci-sequence/main.ts
@@ -0,0 +1,19 @@
+/**
+ * const gen = fibGenerator();
+ * gen.next().value; // 0
+ * gen.next().value; // 1
+ */
+function* fibGenerator(): Generator<number, any, number> {
+    let a = 0;
+    let b = 1;
+    let iter = 0;
+    while (true) {
+        if (iter < 2) {
+            yield iter;
+            iter++;
+        } else {
+            yield a + b;
+            [a, b] = [b, a + b];
+        }
+    }
+};
diff --git a/leetcode/2648-generate-fibonacci-sequence/readme.md b/leetcode/2648-generate-fibonacci-sequence/readme.md
new file mode 100644
index 0000000..aa7c5a5
--- /dev/null
+++ b/leetcode/2648-generate-fibonacci-sequence/readme.md
@@ -0,0 +1,9 @@
+# 2648. Generate Fibonacci Sequence
+
+[Leetcode](https://leetcode.com/problems/generate-fibonacci-sequence/description/)
+
+Write a generator function that returns a generator object which yields the fibonacci sequence.
+
+The fibonacci sequence is defined by the relation Xn = Xn-1 + Xn-2.
+
+The first few numbers of the series are 0, 1, 1, 2, 3, 5, 8, 13.