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1 files changed, 30 insertions, 0 deletions

diff --git a/2.42-v3.cpp b/2.42-v3.cpp
new file mode 100644
index 0000000..bc16fff
--- /dev/null
+++ b/2.42-v3.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+#include "sales_data.hpp"
+
+/*
+ *
+ * 2.41 - 1.22
+ *
+ *
+ */
+
+int main () {
+	
+	SalesData book1;
+	SalesData Sum;
+	if(std::cin >> Sum.BookNo >> Sum.UnitsSold >> Sum.Revenue) {
+		while(std::cin >> book1.BookNo >> book1.UnitsSold >> book1.Revenue) {
+			if(Sum.BookNo == book1.BookNo) {
+				Sum.UnitsSold += book1.UnitsSold;
+				Sum.Revenue += book1.Revenue;
+			} else {
+				std::cout << "These books do not have the same ISBN" << std::endl;
+				return -1;
+			}
+		}
+	}
+	
+	std::cout << Sum.BookNo << " " << Sum.UnitsSold << " " << Sum.Revenue << std::endl;
+	
+	return 0;
+}