Below are links to PDFs of the 6 problems from the 2021 ECOO Programming Contest. Data ZIPs contain problem data and, if necessary, README files containing instructions on how to test your solutions.

P1 P2 P3 P4 P5 P6 Combined
Problem PDF PDF PDF PDF PDF PDF problems.zip
Data p1.zip p2.zip p3.zip p4.zip p5.zip p6.zip data.zip

The problems are also available on DMOJ and MCPT where you may create accounts and submit to the judges, receiving immediate feedback.