chapter 1

Chapter_1/io.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+
+int readNumber()
+{
+	int a = 0;
+	std::cin >> a;
+	return a;
+}
+
+void writeAnswer(int a)
+{
+	std::cout << a << std::endl;
+}

Chapter_1/io.hpp

@@ -0,0 +1,7 @@
+#ifndef IO_HPP_
+#define IO_HPP_
+
+int readNumber();
+void writeAnswer(int);
+
+#endif

Chapter_1/main.cpp

@@ -0,0 +1,13 @@
+#include "io.hpp"
+
+int main()
+{
+	int a = 0, b = 0;
+
+	a = readNumber();
+	b = readNumber();
+
+	writeAnswer(a + b);
+
+	return 0;
+}