Merge pull request #46 from andreas-roehler/master

chapter01/worksheets/solution1.1.1.1.scala

@@ -0,0 +1,16 @@
+/** author: Sergei Winitzki */
+
+/**
+  Factorial of 10
+  Find the product of integers from 1 to 10 (the factorial of 10).
+  */
+
+val result   = (1 to 10).product
+val expected = 3628800
+
+assert(result == expected) 
+
+// scala> :load solution1.1.1.1.scala
+// Loading solution1.1.1.1.scala...
+// result: Int = 3628800
+// expected: Int = 3628800

chapter01/worksheets/solution1.1.1.1_AR.scala

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+/** author: Andreas Röhler */
+
+/**
+  Factorial of 10
+  Find the product of integers from 1 to 10 (the factorial of 10).
+  */
+
+val a = 10
+val b =  (1 to a)
+// val c =  b.length
+var result = 1
+var counter = 0
+
+while (counter < a) { 
+  // println("counter: %s".format(counter))
+  result = result * b(counter)
+  // println("result: %s".format(result))
+  counter += 1
+
+}
+
+println("result: %s".format(result))
+
+val expected = 3628800
+assert(result == expected) 
+
+// scala> :load solution1.1.1.1_AR.scala
+// Loading solution1.1.1.1_AR.scala...
+// a: Int = 10
+// b: scala.collection.immutable.Range.Inclusive = Range(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
+// result: Int = 1
+// counter: Int = 0
+// result: 3628800
+// expected: Int = 3628800