Add Week_1_Orientation_Write_a_cpp_program

Course_1_Object-Oriented Data Structures in Cpp/Week_1_Orientation_Write_a_cpp_program/Week_1_Challenge.cpp

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+#include <iostream>
+using namespace std;
+
+
+
+// You should define Pair here:
+// (Use as many lines as you need!)
+// ...
+// ...
+class Pair{
+  public:
+    int a;
+    int b;
+
+    int sum()
+    {
+      return (a+b);
+    }
+
+};
+//End of definition of class Pair
+
+
+
+// This main() function will help you test your work.
+// Click Run to see what happens.
+// When you're sure you're finished, click Submit for grading
+// with our additional hidden tests.
+int main() {
+  Pair p;
+  p.a = 100;
+  p.b = 200;
+
+  // expected output
+  // Success!
+  if (p.a + p.b == p.sum()) {
+
+    std::cout << "Success!" << std::endl;
+
+  } else {
+
+    std::cout << "p.sum() returns " << p.sum() << " instead of " << (p.a + p.b) << std::endl;
+  }
+  return 0;
+}