I know combinatorics is a part where even if you know the concept, the answer to a question may be wrong because you missed some cases or any other reason that deviates the answer either by a factor of a number or a difference of some number. Often I found after answering a question to combinatorics, people who have posted an answer alongwith me miss something and often improve their answer based on mine or argue to technical wars.
Is changing a wrong answer based on other's answer to correct right thing to do?
They often end up being getting as the accepted answer, even though they did less effort than mine. Note that I am not saying that my answer is always corrects, but anyways...
Don't take my words as if I'm expressing my supremacy, there's tons of people intelligent than me here.
Suppose I make an answer to what is ways of arranging black and blue balls so that total balls are 4 ?
I post: $4!/4!+4!/3!+4!/2!+4!/3!+4!/4!$
Someone else posts: $4!/4!+4!/3$ or $4!$ or something partially right. Then after sometime they correct their wrong answers [they may /may-not see my answer.] Is thisOK? Mightbe theirs' now gets accepted answer.