From b1867481620d7c92cd0a7fafec93ad89813b5de2 Mon Sep 17 00:00:00 2001
From: Ajawu David <ajawudavid@gmail.com>
Date: Fri, 5 Oct 2018 15:51:11 +0100
Subject: [PATCH] DifferenceOfSquares function completed

---
 src/main/scala/DifferenceOfSquares.scala | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/main/scala/DifferenceOfSquares.scala b/src/main/scala/DifferenceOfSquares.scala
index 201e941..13a8c9f 100644
--- a/src/main/scala/DifferenceOfSquares.scala
+++ b/src/main/scala/DifferenceOfSquares.scala
@@ -1,8 +1,14 @@
 object DifferenceOfSquares{
 
-  def sumOfSquares(n: Int): Int = ???
+  def sumOfSquares(n: Int): Int = {
+    (1 to n).map(num => num * num).sum
+  }
 
-  def squareOfSum(n: Int): Int = ???
+  def squareOfSum(n: Int): Int = {
+    scala.math.pow((1 to n).sum, 2).toInt
+  }
 
-  def differenceOfSquares(n: Int):Int = ???
+  def differenceOfSquares(n: Int):Int = {
+    squareOfSum(n) - sumOfSquares(n)
+  }
 }