using open source code is not plagiarism
i'm just saying

Any reason you are stating that? Thanks.

in school they want us to develop the habit of using self written code only,
if it goes on this way they will ask us to rewrite API's @Jumpshot44

No, but it may be illegal depending on the license and how you use it.

Writing your own stuff is good for a learning purpose, which you are doing in school. In reality you often try to minimize the time spent on tasks and therefore you try to find open source stuff which you can use.

you're right @simeg
i had mentioned that i used code that wasn't mine, i had to mention that and give the same rights to others as was granted to me, so if i didn't mention that it wasn't mine that would be fraud/plagiarism, they never mentioned a thing about it, only that Wikipedia was a no go

@juba sounds legit. Now if you just copy and pasted from stack overflow it might be a different story. But if you used a package or added a dependency that wasn't explicitly forbidden, as long as all such things weren't forbidden. I think you're good. Just be polite being right doesn't always mean you are free.