CUMCM-2010 contest problems (11-03-13) CUMCM-2009 Contest Problems (10-07-28) CUMCM-2008 Contest Problems (10-07-28) CUMCM-2007 contest problems (10-08-03) CUMCM-2006 contest problems (10-08-03) CUMCM-2005 contest problems (10-08-03) CUMCM contest problems (2001-2004) (10-08-03) CUMCM contest problems (1992-2000) (10-08-03)Co-Organizors
CSIAM (China Society for Industrial and Applied Mathematics)
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