prog.cs(16,20): warning CS0642: Possible mistaken empty statement
prog.cs(18,20): warning CS0642: Possible mistaken empty statement
prog.cs(20,20): warning CS0642: Possible mistaken empty statement
prog.cs(12,30): error CS0246: The type or namespace name `i' could not be found. Are you missing a using directive or an assembly reference?
prog.cs(15,21): error CS0019: Operator `==' cannot be applied to operands of type `int' and `bool'
prog.cs(17,21): error CS0019: Operator `==' cannot be applied to operands of type `int' and `bool'
prog.cs(19,21): error CS0019: Operator `==' cannot be applied to operands of type `int' and `bool'
Compilation failed: 4 error(s), 3 warnings