Exercise 10

Added Exercise 10 to Repo

Informatik_I/Exercise_10/Task_1b/README.org

@@ -0,0 +1,45 @@
+#+title: Task 1b: Understanding Pointers - Add
+
+#+author: JirR02
+* Task Description
+:PROPERTIES:
+:CUSTOM_ID: task-description
+:END:
+Complete the definition of function add by editing the file =add.cpp=
+according to its specified pre- and post conditions.
+
+We provide a test program using the implemented function to add two
+values given by the user.
+
+** Input
+:PROPERTIES:
+:CUSTOM_ID: input
+:END:
+Integers a, b.
+
+For example
+
+#+begin_src shell
+21 35
+#+end_src
+
+** Output
+:PROPERTIES:
+:CUSTOM_ID: output
+:END:
+The test program prints the sum of a and b.
+
+For example, for the input given above this value is 56.
+
+* Solution
+:PROPERTIES:
+:CUSTOM_ID: solution
+:END:
+#+begin_src cpp
+#include "add.h"
+
+// PRE:  a, b, and res are valid pointers to integer values.
+// POST: integer at location res contains the result of adding the integer at
+//       location a and the integer at location b.
+void add(int *res, const int *a, const int *b) { *res = *a + *b; }
+#+end_src