From 1fce31032c5a8602c2ff109760f50cbca7516dc2 Mon Sep 17 00:00:00 2001
From: Emin Deniz <44745432+emindeniz99@users.noreply.github.com>
Date: Sun, 11 Oct 2020 15:44:04 +0300
Subject: [PATCH] solve week3 algos

---
 algos/level1/week3/emin.index.js |  5 +++++
 algos/level1/week3/emin.test.js  | 25 +++++++++++++++++++++++++
 algos/level2/week3/emin.index.js | 19 +++++++++++++++++++
 algos/level2/week3/emin.test.js  | 15 +++++++++++++++
 4 files changed, 64 insertions(+)
 create mode 100644 algos/level1/week3/emin.index.js
 create mode 100644 algos/level1/week3/emin.test.js
 create mode 100644 algos/level2/week3/emin.index.js
 create mode 100644 algos/level2/week3/emin.test.js

diff --git a/algos/level1/week3/emin.index.js b/algos/level1/week3/emin.index.js
new file mode 100644
index 0000000..0347e17
--- /dev/null
+++ b/algos/level1/week3/emin.index.js
@@ -0,0 +1,5 @@
+const arr = (count = 0) => {
+	return new Array(count).fill(0).map((_, index) => index)
+}
+
+module.exports = { arr }
diff --git a/algos/level1/week3/emin.test.js b/algos/level1/week3/emin.test.js
new file mode 100644
index 0000000..604dc49
--- /dev/null
+++ b/algos/level1/week3/emin.test.js
@@ -0,0 +1,25 @@
+const arr = require("./emin.index.js").arr
+
+test("arr function exists", () => {
+	expect(arr).toBeDefined()
+})
+
+test("return type is array", () => {
+	expect(Array.isArray(arr())).toEqual(true)
+})
+
+describe("array elements", function () {
+	test("should get correct answer", function () {
+		expect(arr(6)).toEqual([0, 1, 2, 3, 4, 5])
+		expect(arr(1)).toEqual([0])
+		expect(arr(0)).toEqual([])
+	})
+})
+
+describe("array length", function () {
+	test("should get correct answer", function () {
+		expect(arr(6).length).toEqual(6)
+		expect(arr(1).length).toEqual(1)
+		expect(arr(0).length).toEqual(0)
+	})
+})
diff --git a/algos/level2/week3/emin.index.js b/algos/level2/week3/emin.index.js
new file mode 100644
index 0000000..47498de
--- /dev/null
+++ b/algos/level2/week3/emin.index.js
@@ -0,0 +1,19 @@
+const get_score = (arr = [4, 2, 2, 3, 3, 4, 2]) => {
+	score = 0
+	level = 0
+	lineCounter = 0
+	basePoints = [40, 100, 300, 1200]
+
+	for (let line of arr) {
+		score += basePoints[line - 1] * (level + 1)
+		lineCounter += line
+		if (lineCounter >= 10) {
+			lineCounter -= 10
+			level++
+		}
+	}
+	return score
+}
+get_score()
+
+module.exports = { get_score }
diff --git a/algos/level2/week3/emin.test.js b/algos/level2/week3/emin.test.js
new file mode 100644
index 0000000..13b5c02
--- /dev/null
+++ b/algos/level2/week3/emin.test.js
@@ -0,0 +1,15 @@
+const get_score = require("./emin.index.js").get_score
+
+test("get_score function exists", () => {
+	expect(get_score).toBeDefined()
+})
+
+test("return type is number", () => {
+	expect(typeof get_score([])).toEqual("number")
+})
+
+describe("scores", function () {
+	test("should get correct answer", function () {
+		expect(get_score([4, 2, 2, 3, 3, 4, 2])).toEqual(4900)
+	})
+})