What do mean with the result of a challenge? The result should be that you master it. And whether this is good or not depends on the challenge...
Or do you mean the result of a challenge checker?
The one who wrote the checker should ensure that the result is right. And the challenge owner should also check this before he implements the checker in the listing. And if you are able to understand the programming language Lua, you can click on the button "View source" next to the checker and check the script.
