From a10a6e35975660b89b465faf5baacd6df9c43a34 Mon Sep 17 00:00:00 2001
From: Oskar <open7software@gmail.com>
Date: Wed, 18 Sep 2024 16:12:27 +0200
Subject: more, 7.15 not started yet

---
 7p13.cpp | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 7p13.cpp

(limited to '7p13.cpp')

diff --git a/7p13.cpp b/7p13.cpp
new file mode 100644
index 0000000..bfacb6a
--- /dev/null
+++ b/7p13.cpp
@@ -0,0 +1,34 @@
+#include <iostream>
+#include "sales_data.hpp"
+
+/*
+ *
+ * 7.13
+ *
+ *
+ */
+
+int main () {
+
+	SalesData total(std::cin);
+	if (std::cin) {
+		SalesData trans(std::cin);
+		while(std::cin) {
+			if (total.isbn() == trans.isbn())
+				total.combine(trans);
+			else {
+				print(std::cout, total) << std::endl;
+				total = trans;
+			}
+
+			read(std::cin, trans);
+		}
+		
+		print(std::cout, total) << std::endl;
+	} else {
+		std::cerr << "Error" << std::endl;
+		return -1;
+	}
+	
+	return 0;
+}
-- 
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