Added program on dynamical alloc. of memory and input from c-line

dynamicalallocationofmemory.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+  int n;
+  cin >> n;
+
+
+  double* b = new double[n];    // Using this approach, we do not
+                                // have to declare n as constant
+
+  return 0;                        
+}

inputfromcommandline.cpp

@@ -0,0 +1,11 @@
+#include <iostream>
+
+using namespace std;
+
+int main(int argc, char* argv[]) // Add this rubbish to main
+{
+  // argv[0] is the program name
+  // arg[1] is the first argument
+  // arg[2] is the second argument and so on
+  return 0;
+}

test.cpp

@@ -9,11 +9,17 @@
 using namespace std;
 
 
+int func(int, int);
+
 int main()
 {
-  const int n = 5;
-  double b[n] = {};
 
-  n = 2;
-  }
+  int a = 1, b = 2;
+  cout << func(a, b);
+  return 0;
+}
+
+int func(int a, int b)
+{
+  return a + b;
 }