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[CF Hardcore] Codeforces API Down for 9 Days!

Published at: 2026-06-11 09:00 Last updated: 2026-06-12 03:03
#algorithm #optimization #API

Codeforces API Downtime Notice

Recently, the Codeforces API has been down for about 9 days, causing multiple tools and services to malfunction, including Clist, TLEBot, and Carrot. Worse yet, the problem ratings on the problem set have caught up to those on Clist, showcasing the extensive impact of the API outage on the community.

Community Reactions

Users have expressed their concerns and frustrations in the forums:

Call for Solutions

It is hoped that the Codeforces team can resolve this issue quickly to restore normal user experience. This outage not only affects the fairness of competitions but also troubles developers and users reliant on the API. We urge everyone to be patient and look forward to a swift response from the officials!

Blogger's Review: The Codeforces API failure reveals the fragile connection between the platform and its users, emphasizing the importance of service maintenance. It’s crucial for the officials to restore service promptly and enhance focus on system stability. Such incidents remind us that the reliability of technology is foundational to building a good user experience.

Original Source: https://codeforces.com/blog/entry/153040

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