introductory-examples/program-organization/4/ex-equiv.cs - Equivalent program with nested namespaces - no physical nesting.

Lecture 4 - slide 19 : 29 Program 8

// Equivalent to the previous program 
// No physical namespace nesting 
// In source file ex-equiv.cs

namespace N1.N2 {
  public class C1{};
  public class C2{};
}

namespace N1.N3 {
  public class C3{}
}