removed some headers to maybe speed up compile time maybe it will work i dont know

70 files changed, 33 insertions, 115 deletions

diff --git a/2p10.cpp b/2p10.cpp
index 394a0f8..3d7fe29 100644
--- a/2p10.cpp
+++ b/2p10.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p12.cpp b/2p12.cpp
index 73eef5c..1d8843d 100644
--- a/2p12.cpp
+++ b/2p12.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p13.cpp b/2p13.cpp
index 2fdb562..b0e3bf0 100644
--- a/2p13.cpp
+++ b/2p13.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  * 2.13
diff --git a/2p14.cpp b/2p14.cpp
index d3973a6..99c9659 100644
--- a/2p14.cpp
+++ b/2p14.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  * Yes, it is legal if you aren't using compilerflags like me.
diff --git a/2p15.cpp b/2p15.cpp
index 1e13ede..7735929 100644
--- a/2p15.cpp
+++ b/2p15.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p16-2p17.cpp b/2p16-2p17.cpp
index 8a7b8eb..fce6274 100644
--- a/2p16-2p17.cpp
+++ b/2p16-2p17.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p18.cpp b/2p18.cpp
index 845ac8e..da97d09 100644
--- a/2p18.cpp
+++ b/2p18.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p20.cpp b/2p20.cpp
index 6e85ad8..399e77c 100644
--- a/2p20.cpp
+++ b/2p20.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p21.cpp b/2p21.cpp
index 746ce34..290bff8 100644
--- a/2p21.cpp
+++ b/2p21.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p25.cpp b/2p25.cpp
index e97dec3..20ee6e8 100644
--- a/2p25.cpp
+++ b/2p25.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p3-2p4.cpp b/2p3-2p4.cpp
index dcc0c86..2b2cb9c 100644
--- a/2p3-2p4.cpp
+++ b/2p3-2p4.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p30-2p31.cpp b/2p30-2p31.cpp
index eecbdbd..9c2e781 100644
--- a/2p30-2p31.cpp
+++ b/2p30-2p31.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p32.cpp b/2p32.cpp
index 5fa6c3e..2f94ae3 100644
--- a/2p32.cpp
+++ b/2p32.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p33-2p34.cpp b/2p33-2p34.cpp
index bc16416..334474a 100644
--- a/2p33-2p34.cpp
+++ b/2p33-2p34.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p35.cpp b/2p35.cpp
index ce34e47..6e958d2 100644
--- a/2p35.cpp
+++ b/2p35.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p36.cpp b/2p36.cpp
index 73f02b7..d7505d2 100644
--- a/2p36.cpp
+++ b/2p36.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p37.cpp b/2p37.cpp
index 445ce22..7247652 100644
--- a/2p37.cpp
+++ b/2p37.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/2p38.cpp b/2p38.cpp
index dbaaf0d..1b80fe9 100644
--- a/2p38.cpp
+++ b/2p38.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p1-1p10.cpp b/3p1-1p10.cpp
index 79a1396..57e0382 100644
--- a/3p1-1p10.cpp
+++ b/3p1-1p10.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p1-1p11.cpp b/3p1-1p11.cpp
index 8f8a647..3fe0ea8 100644
--- a/3p1-1p11.cpp
+++ b/3p1-1p11.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p1-1p9.cpp b/3p1-1p9.cpp
index ba717e3..6069cd7 100644
--- a/3p1-1p9.cpp
+++ b/3p1-1p9.cpp
@@ -1,5 +1,4 @@
 #include <iostream>
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p10.cpp b/3p10.cpp
index 4863abf..55f9311 100644
--- a/3p10.cpp
+++ b/3p10.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p12.cpp b/3p12.cpp
index ef46169..d03a86b 100644
--- a/3p12.cpp
+++ b/3p12.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p13.cpp b/3p13.cpp
index ca60b58..e4f3f6b 100644
--- a/3p13.cpp
+++ b/3p13.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p14.cpp b/3p14.cpp
index ba9b2c9..2973394 100644
--- a/3p14.cpp
+++ b/3p14.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p15.cpp b/3p15.cpp
index 27a648d..924f527 100644
--- a/3p15.cpp
+++ b/3p15.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p16.cpp b/3p16.cpp
index 0f1ff0b..2c8ba08 100644
--- a/3p16.cpp
+++ b/3p16.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p17.cpp b/3p17.cpp
index a2195c7..3636e65 100644
--- a/3p17.cpp
+++ b/3p17.cpp
@@ -1,8 +1,6 @@
 #include <iostream>
 #include <vector>
 #include <cctype>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p18.cpp b/3p18.cpp
index a35ff43..02c1f25 100644
--- a/3p18.cpp
+++ b/3p18.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p19.cpp b/3p19.cpp
index 1d659c9..5768afb 100644
--- a/3p19.cpp
+++ b/3p19.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p2-v1.cpp b/3p2-v1.cpp
index 0facda6..517bc5d 100644
--- a/3p2-v1.cpp
+++ b/3p2-v1.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p2-v2.cpp b/3p2-v2.cpp
index 8b88120..1d12003 100644
--- a/3p2-v2.cpp
+++ b/3p2-v2.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p20.cpp b/3p20.cpp
index 0a84561..98de3f7 100644
--- a/3p20.cpp
+++ b/3p20.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p21.cpp b/3p21.cpp
index f1bad84..e58508f 100644
--- a/3p21.cpp
+++ b/3p21.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p22.cpp b/3p22.cpp
index 488d85d..4c2aba2 100644
--- a/3p22.cpp
+++ b/3p22.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p23.cpp b/3p23.cpp
index e991180..f92ddd2 100644
--- a/3p23.cpp
+++ b/3p23.cpp
@@ -3,8 +3,6 @@
 #include <ctime>
 #include <cstdlib>
 #include <random>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p24.cpp b/3p24.cpp
index 1ae1ef2..466285a 100644
--- a/3p24.cpp
+++ b/3p24.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p25.cpp b/3p25.cpp
index 44f33de..4b0521f 100644
--- a/3p25.cpp
+++ b/3p25.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p26.cpp b/3p26.cpp
index 3535b19..378deaa 100644
--- a/3p26.cpp
+++ b/3p26.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p27.cpp b/3p27.cpp
index de4f9d2..f367538 100644
--- a/3p27.cpp
+++ b/3p27.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p28.cpp b/3p28.cpp
index 14f617a..aad7a89 100644
--- a/3p28.cpp
+++ b/3p28.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p29.cpp b/3p29.cpp
index d219ef1..ac96a75 100644
--- a/3p29.cpp
+++ b/3p29.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p3.cpp b/3p3.cpp
index b4a8564..c31df42 100644
--- a/3p3.cpp
+++ b/3p3.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p30.cpp b/3p30.cpp
index 68d4cdd..38cbbfb 100644
--- a/3p30.cpp
+++ b/3p30.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p31.cpp b/3p31.cpp
index 0e7970b..e7d554e 100644
--- a/3p31.cpp
+++ b/3p31.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p32.cpp b/3p32.cpp
index 2510e21..12b24b7 100644
--- a/3p32.cpp
+++ b/3p32.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p33.cpp b/3p33.cpp
index 96d0105..ac51c9c 100644
--- a/3p33.cpp
+++ b/3p33.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p34.cpp b/3p34.cpp
index 84d148b..e3e71de 100644
--- a/3p34.cpp
+++ b/3p34.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p35.cpp b/3p35.cpp
index b24d099..9115568 100644
--- a/3p35.cpp
+++ b/3p35.cpp
@@ -1,8 +1,6 @@
 #include <iostream>
 #include <vector>
 #include <iterator>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p36.cpp b/3p36.cpp
index 4eb9b9e..877cfcf 100644
--- a/3p36.cpp
+++ b/3p36.cpp
@@ -1,8 +1,6 @@
 #include <iostream>
 #include <vector>
 #include <iterator>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p37.cpp b/3p37.cpp
index 968ce86..273c1a0 100644
--- a/3p37.cpp
+++ b/3p37.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p38.cpp b/3p38.cpp
index f3e320c..69830c5 100644
--- a/3p38.cpp
+++ b/3p38.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p39.cpp b/3p39.cpp
index 6f25e86..6816daf 100644
--- a/3p39.cpp
+++ b/3p39.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 #include <cstring>
 #include <string>
 #include <limits>
diff --git a/3p4.cpp b/3p4.cpp
index 2545618..44f0f92 100644
--- a/3p4.cpp
+++ b/3p4.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p40.cpp b/3p40.cpp
index 0ca64fd..76629fa 100644
--- a/3p40.cpp
+++ b/3p40.cpp
@@ -1,8 +1,6 @@
 #include <iostream>
 #include <vector>
 #include <cstring>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p41.cpp b/3p41.cpp
index 4ae2247..2d83213 100644
--- a/3p41.cpp
+++ b/3p41.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 #include <iterator>
 
 /*
diff --git a/3p42.cpp b/3p42.cpp
index 495a6f6..a5c310a 100644
--- a/3p42.cpp
+++ b/3p42.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 #include <iterator>
 
 /*
diff --git a/3p43.cpp b/3p43.cpp
index 19fa0ce..cf059cc 100644
--- a/3p43.cpp
+++ b/3p43.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 #include <iterator>
 
 /*
diff --git a/3p44.cpp b/3p44.cpp
index f098169..da39f25 100644
--- a/3p44.cpp
+++ b/3p44.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 #include <iterator>
 
 /*
diff --git a/3p45.cpp b/3p45.cpp
index 0116a88..934b04d 100644
--- a/3p45.cpp
+++ b/3p45.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 #include <iterator>
 
 /*
diff --git a/3p5.cpp b/3p5.cpp
index 628557d..32260d1 100644
--- a/3p5.cpp
+++ b/3p5.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p6-v2.cpp b/3p6-v2.cpp
index 31a8cef..767dfa7 100644
--- a/3p6-v2.cpp
+++ b/3p6-v2.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p6.cpp b/3p6.cpp
index d33055a..0807025 100644
--- a/3p6.cpp
+++ b/3p6.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p7.cpp b/3p7.cpp
index 9acc8fb..0c71d69 100644
--- a/3p7.cpp
+++ b/3p7.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p8-v1.cpp b/3p8-v1.cpp
index a53a408..0c6e876 100644
--- a/3p8-v1.cpp
+++ b/3p8-v1.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p8-v2.cpp b/3p8-v2.cpp
index 158de77..727ae60 100644
--- a/3p8-v2.cpp
+++ b/3p8-v2.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/3p9.cpp b/3p9.cpp
index 25077ce..c722e45 100644
--- a/3p9.cpp
+++ b/3p9.cpp
@@ -1,6 +1,4 @@
 #include <iostream>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *
diff --git a/4p1.cpp b/4p1.cpp
new file mode 100644
index 0000000..38bc535
--- /dev/null
+++ b/4p1.cpp
@@ -0,0 +1,16 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 4.1
+ *
+ *
+ */
+
+int main () {
+
+	// It will print: 105
+	std::cout << 5 + 10 * 20/2 << std::endl;
+	return 0;
+}
diff --git a/4p2.cpp b/4p2.cpp
new file mode 100644
index 0000000..ad06d43
--- /dev/null
+++ b/4p2.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 4.2
+ *
+ *
+ */
+
+int main () {
+
+	//* vec.begin() // Function is called, then dereferenced
+	//* vec.begin() + 1 // Function called, dereference, add
+	
+	return 0;
+}
diff --git a/exercise-template.cpp b/exercise-template.cpp
index c6f4d6f..0048d2b 100644
--- a/exercise-template.cpp
+++ b/exercise-template.cpp
@@ -1,7 +1,5 @@
 #include <iostream>
 #include <vector>
-#include "sales_data.hpp"
-#include "sales_item.hpp"
 
 /*
  *