Computational Complexity Conference

The Computational Complexity Conference (CCC) is an annual conference on the inherent difficulty of computational problems in terms of the resources they require. It is organized by the Computational Complexity Foundation (CCF).

CCC 2021
July 20–22, Toronto, Ontario, Canada Online
Call for Papers | Accepted Papers
Day of Tutorials: July 19

CCC 2020
July 28–30, Saarbruecken, Germany Online
Call for Papers | Program | Local Arrangements | Videos | Proceedings

Future and Past Conferences


  • The list of accepted papers for CCC'21 has been posted.

  • Due to the public health measures related to Covid-19 in place worldwide, CCC 2021 will not take place as a physical conference at Toronto, Ontario, Canada between July 20–23 as originally planned. Instead the conference will be held in a virtual online format during a subset of those days. The details of the conference format will be posted in due course.

  • The program, videos of talks, and proceedings of CCC'20 are now available.

About the conference


Organized by:

In Cooperation with: