TL too tight

[Edu175]

In IOI 2021 Day2 problem E. Dungeons game, the time limit is set to 4 seconds, however this submission, which is one of the intended solutions, gets TLE on the last subtask, whereas in oj.uz it passes in 3599ms. Despite oj.uz being faster (it is usually faster in other problems too), they have set the TL for that problem to 7000ms, instead of 4000ms like codeforces. So why does codeforces have such a low TL?

Edit: I would also like to add that in problems A and E of the same year there are latex errors in the statements (the latex code appears in red, instead of the symbol)

[kunyavskiy]

Well, judges solution works in 2.5, so probably 4 is indeed too small. I've increased, but wouldn't rejudge.

What do you mean by red? I've able to generate both HTML and pdf for both of them in polygon.

[Edu175]

There are only two latex errors

Problem A:

Problem E: