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Trying to learn the basics of C#

Trying to learn the basics of C#

Jeffrey Jordan

7y761Learn iOS Programming

Hi, I'm working on challenges to help me get used to c#. I know some c++, but I have a class next semester that is using c#, and I want a leg up.

The challenge is to find r2 given that (r1+r2) / 2 = s , or rather, the mean of two numbers.

You're given r1 and s, so you use math or logic to find r2.

I can do this in two different ways. The first, is just algebra, and the other is a loop.

It's giving me a run-time error which can mean too much memory or compilation time too long.

Can anyone tell me why my code attempts are sketchy?

Thank you.

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Manoj Bhoir7y ago
Accepted answer
Hi,

You can try this.

+2
Manoj Bhoir7y ago
Hi,

Parsing is nothing but converting your first object type into second object type. For example converting String to Integer or Double to String and so on. Parsing can be done using many ways.

In C#, Convert.ToInt16 Method Converts a specified value to a 16-bit signed integer.

More information : https://docs.microsoft.com/en-us/dotnet/api/system.convert.toint16?view=netframework-4.8

int is a primitive type allowed by the C# compiler, whereas Int32 is the Framework Class Library type (available across languages that abide by CLS). In fact, int translates to Int32 during compilation. Also, In C#, long maps to System.Int64, but in a different programming language, long could map to Int16 or Int32.

More Information : https://stackoverflow.com/questions/9696660/what-is-the-difference-between-int-int16-int32-and-int64
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Jeffrey Jordan7y ago
Manoj >>

Thanks for replying!

What's the difference between parsing to int and the convert to int16?

Secondly, what is int16? haha
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Jeffrey Jordan7y ago
Additionally, I used Round.Math(i) in the loop one for one attempt as well.

and just an example in case the challenge didn't make sense

(11 + x) / 2 = 15

x = 19

19 + 11 = 30

30 / 2 = 15

I'm not trying to insult anyone's intelligence except my own. I suck at explaining.
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