Todday, when i am submit my code, the result is Compilation error.

But the reason of that is Can't compile file:Compilation process timed out.

my submission

And the code can work well in my computer. So what's happening? Is this a bug? What can i do for it?

There is a strange thing between C++14 and C++20

We can see that the down two code are same, but the code using C++20 got TLE, and the code using C++14 got AC

https://mirror.codeforces.com/contest/1634/submission/145631828

https://mirror.codeforces.com/contest/1634/submission/145633066

We can also see that the down two code are same, but the code using C++14 got TLE, and the code using C++20 got AC

https://mirror.codeforces.com/problemset/submission/573/145373496

https://mirror.codeforces.com/problemset/submission/573/145372752

What's wrong with it? It there anyone could help me answer the question? Many Thanks!