root access

Question

when I try this
int main() {
system("whoami");
return 0;
}
the output is : root
do I have root access, I am a bit confusing
plus can anyone explain how the files get deleted automatically after the end of the program
meaning when I type
system("touch file.txt");
a file name "file.txt" will be created, and after running the program once again with
system("ls"); the file is no longer there, I mean this is possible but just wondering how?

Answer 1

Sololearn runs programs as root. Yet that doesn't help you much since the filesystem is largely read-only and the whole container will replaced every time someone executed a program. So you can't store data between two executions of your program.

Answer 2

no I'm just trying to understand how files you create within the terminal deleted automatically

BTW you can compile a file.txt in c++ if you specify that "file.txt" is a c++ to the compiler u can do it by
g++ -x c++ file.txt

Answer 3

Tell me plz. Is your programm file.c compiled and works?

Why you are not trying syscall?

Answer 4

cheked your prog. It's work.

Answer 5

yes, my question wasn't about c++
I'm trying to understand how SoloLearn server works.

you can do: system("ls") and discover

Answer 6

https://www.sololearn.com/post/944363/?ref=app

Answer 7

Waite a minute i try your code

Answer 8

Tell me plz, are You trying run C Program from file. txt?
If so. Dont try. Nothing Will be done.

Answer 9

I see. Ok. Its intresting to explore how SoloLearn server works. I want to understand this too.

Answer 10

exactly 🤗