General-Doomer questions

General-Doomer answers

• Implementation of custom iterator does not change one of its parameters
• Base class c# and Java different behaviour
• Correctly distinguish between bool? and bool in C#
• Deleting duplicates references in list c#
• The union of the intersects of the 2 set combinations of a sequence of sequences
• Implementing async version of a sync method: How to return Task<int> which is constant 1?