Problems and solutions

2026

Problems:	2026-1	2026-2	2026-3	2026-4
Solutions:	2026-1	2026-2	2026-3	2026-4

2025

Problems:	2025-1	2025-2	2025-3	2025-4
Solutions:	2025-1	2025-2	2025-3	2025-4

2024

Problems:	2024-1	2024-2	2024-3	2024-4
Solutions:	2024-1	2024-2	2024-3	2024-4

2023

Problems:	2023-1	2023-2	2023-3	2023-4
Solutions:	2023-1	2023-2	2023-3	2023-4

2022

Problems:	2022-1	2022-2	2022-3	2022-4
Solutions:	2022-1	2022-2	2022-3	2022-4

2021

Problems:	2021-1	2021-2	2021-3	2021-4
Solutions:	2021-1	2021-2	2021-3	2021-4

2020

Problems:	2020-1	2020-2	2020-3	2020-4
Solutions:	2020-1	2020-2	2020-3	2020-4

2019

Problems:	2019-1	2019-2	2019-3	2019-4
Solutions:	2019-1	2019-2	2019-3	2019-4

2018

Problems:	2018-1	2018-2	2018-3	2018-4
Solutions:	2018-1	2018-2	2018-3	2018-4

2017

Problems:	2017-1	2017-2	2017-3	2017-4
Solutions:	2017-1	2017-2	2017-3	2017-4

2016

Problems:	2016-1	2016-2	2016-3	2016-4
Solutions:	2016-1	2016-2	2016-3	2016-4

2015

Problems:	2015-1	2015-2	2015-3	2015-4
Solutions:	2015-1	2015-2	2015-3	2015-4

2014

Problems:	2014-1	2014-2	2014-3	2014-4
Solutions:	2014-1	2014-2	2014-3	2014-4

2013

Problems:	2013-1	2013-2	2013-3	2013-4
Solutions:	2013-1	2013-2	2013-3	2013-4

2012

Problems:	2012-1	2012-2	2012-3	2012-4
Solutions:	2012-1	2012-2	2012-3	2012-4

2011

Problems:	2011-1	2011-2	2011-3	2011-4
Solutions:	2011-1	2011-2	2011-3	2011-4

2010

Problems:	2010-1	2010-2	2010-3	2010-4
Solutions:	2010-1	2010-2	2010-3	2010-4

2009

Problems:	2009-1	2009-2	2009-3	2009-4
Solutions:	2009-1	2009-2	2009-3	2009-4

2008

Problems:	2008-1	2008-2	2008-3	2008-4
Solutions:	2008-1	2008-2	2008-3	2008-4

2007

Problems:	2007-1	2007-2	2007-3	2007-4
Solutions:	2007-1	2007-2	2007-3	2007-4

2006

Problems:	2006-1	2006-2	2006-3	2006-4
Solutions:	2006-1	2006-2	2006-3	2006-4

2005

Problems:	2005-1	2005-2	2005-3	2005-4
Solutions:	2005-1	2005-2	2005-3	2005-4