added examples

2 files changed, 10 insertions, 2 deletions

diff --git a/Exercise5/Exercise5/helpers.h b/Exercise5/Exercise5/helpers.h
index 6e34ea0..c6a1241 100644
--- a/Exercise5/Exercise5/helpers.h
+++ b/Exercise5/Exercise5/helpers.h
@@ -5,7 +5,7 @@
 // Content of the header file
 int sum(int a, int b);
 
-
+long factorial(int a);
 
 
 
diff --git a/Exercise5/Exercise5/program.cpp b/Exercise5/Exercise5/program.cpp
index c48cfd2..1a2f55f 100644
--- a/Exercise5/Exercise5/program.cpp
+++ b/Exercise5/Exercise5/program.cpp
@@ -20,4 +20,12 @@ int sum(int a, int b)
 	sum = a + b;
 
 	return sum;
-}
\ No newline at end of file
+}
+
+long factorial(int a)
+{
+	if (a == 0 || a == 1)
+		return 1; //base case returns solid data
+	else
+		return a * factorial(a - 1); //recursive case: a! = a * (a-1)!	
+}