move exercises, lecture examples, labs into subfolders

Exercises/C16/alloc_example_2.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+
+    // Declare an integer array and an integer pointer
+    int *pData;
+
+    pData = calloc ( 10000 , sizeof (float));           // No warning
+    pData = (float *)calloc ( 10000 , sizeof (float));  // Warning
+
+    return 0;   // Exit
+}