how long does Rating changes for last rounds are temporarily rolled back. They will be returned soon. take on codeforces

On Codeforces, that rollback usually lasts a few hours to about a day , and in some cases it can stretch longer when many contests are being reviewed at once. Recent discussions suggest a common range of 12–24 hours , though older examples show it can occasionally take around 20+ hours before ratings are restored.

What it means

The message usually appears when Codeforces is rechecking results, often because of suspected cheating or contest review work. During that window, your profile rating may look temporarily unchanged until the recalculation finishes.

Typical timing

• Common: 12–24 hours.

• Sometimes shorter: a few hours.

• Sometimes longer: more than a day in heavier review periods.

Practical takeaway

If you see that notice, the safest expectation is same day or next day , not instantly. The exact timing depends on how many contests are being reprocessed and how much review is needed.

TL;DR: usually 12–24 hours , but it can be a bit shorter or longer depending on the review workload.