From 99711cdb22746ff58ec9001ae70582f5adae0bc3 Mon Sep 17 00:00:00 2001
From: Agozie <fagozie43@gmail.com>
Date: Fri, 5 Oct 2018 17:18:57 +0100
Subject: [PATCH 1/2] Completed the Difference of Squares Exercise

---
 src/main/scala/DifferenceOfSquares.scala | 46 ++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 3 deletions(-)

diff --git a/src/main/scala/DifferenceOfSquares.scala b/src/main/scala/DifferenceOfSquares.scala
index 201e941..3e9c020 100644
--- a/src/main/scala/DifferenceOfSquares.scala
+++ b/src/main/scala/DifferenceOfSquares.scala
@@ -1,8 +1,48 @@
+import scala.math.pow
+
 object DifferenceOfSquares{
 
-  def sumOfSquares(n: Int): Int = ???
+  def sumOfSquares(n: Int): Int = 
+  {
+    var lim = n
+    var totalsum = 0
+    while (lim > 0)
+    {
+      var powered: Int = (pow(lim, 2)).toInt
+      totalsum = totalsum + powered
+      lim = lim-1
+    }
+    totalsum
+  }
+
+  def squareOfSum(n: Int): Int = 
+  {
+    var lim = n
+    var totalsum = 0
+    while (lim > 0)
+    {
+      totalsum = totalsum + lim
+      lim = lim-1
+    }
+    var squareSum: Int = pow(totalsum, 2).toInt
+    squareSum
+  }
 
-  def squareOfSum(n: Int): Int = ???
+  def differenceOfSquares(n: Int):Int = 
+  {
+    var sqOfsum = squareOfSum(n)
+    var sumOfsq = sumOfSquares(n)
 
-  def differenceOfSquares(n: Int):Int = ???
+    var totalDifference = sqOfsum - sumOfsq
+    totalDifference
+  }
 }
+
+// Testing the code
+
+var sumOfsq = DifferenceOfSquares.sumOfSquares(10)
+var sqOfsum = DifferenceOfSquares.squareOfSum(10)
+
+println(DifferenceOfSquares.squareOfSum(10))
+println(DifferenceOfSquares.sumOfSquares(10))
+println(DifferenceOfSquares.differenceOfSquares(10))
\ No newline at end of file

From f7ce80ff8a191afe8abbb238414c1d1c787feee0 Mon Sep 17 00:00:00 2001
From: Agozie <fagozie43@gmail.com>
Date: Fri, 5 Oct 2018 20:38:05 +0100
Subject: [PATCH 2/2] completed difference of square exercise

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

diff --git a/src/main/scala/DifferenceOfSquares.scala b/src/main/scala/DifferenceOfSquares.scala
index 3e9c020..a475031 100644
--- a/src/main/scala/DifferenceOfSquares.scala
+++ b/src/main/scala/DifferenceOfSquares.scala
@@ -37,12 +37,3 @@ object DifferenceOfSquares{
     totalDifference
   }
 }
-
-// Testing the code
-
-var sumOfsq = DifferenceOfSquares.sumOfSquares(10)
-var sqOfsum = DifferenceOfSquares.squareOfSum(10)
-
-println(DifferenceOfSquares.squareOfSum(10))
-println(DifferenceOfSquares.sumOfSquares(10))
-println(DifferenceOfSquares.differenceOfSquares(10))
\ No newline at end of file