The contest problems (for the coming contest) will be downloadable from here when the contest starts (usually in the early or middle September each year). All the problems will be compressed into a single file named  "cumcmYEARproblemsE.ZIP", or "cumcmYEARproblemsE.RAR" or alike, which can be decompressed with the tools such as ZIP or RAR (you can download RAR trial version from http://www.rarlab.com/).

[NOTE] Starting from the year of 2019:

       The "University" level/type teams should choose any one from Problems A, B or C;

       The "College" level/type teams can choose any one from Problems A, B, C, D or E.