APL Problem Solving Competition

Dyalog Ltd is pleased to host the APL Problem Solving Competition. The challenge has two phases:

  • Phase I consists of ten simple problems that must all be solved.
  • Phase II consists of more complex problems in three categories.

We encourage students at all levels of education, anywhere in the world, to participate. Non-students are welcome to submit solutions and may receive an honourable mention, but proof of enrolment in a full-time educational program is required to win a cash prize.

Thanks to our sponsors Fiserv and SimCorp, substantial cash prizes are offered. In addition, the winner is invited to the next Dyalog user meeting to present their winning work.

The 2018 APL Problem Solving Competition

Congratulations to all the winners! They are:

Phase II – Grand Prize Winner:

  • Alve Björk (Uppsala University, Sweden)

receives a cash prize of $2,500 USD and an invitation to present his winning work at Dyalog '18 in Belfast, Northern Ireland

Phase II – Second Place:

  • Lynn Van Hauwe (University of Antwerp, Belgium)

receives a cash prize of $1,250 USD

Phase II – Third Place:

  • Rafael Rodrigues Rocha de Melo (Kyoto University, Japan)

receives a cash prize of $750 USD

Phase II – Winning Professional Entrant:

  • Tiziano Berghi (Italy)

receives a delegate package registration for Dyalog '18 in Belfast, Northern Ireland

  • Honourable Mention: Mike Powell (Canada)

Phase II Winners selected from submissions that have a correct solution to any problem in any Phase II problem set:

  • Dinesh Poudel (Jaya Multiple Campus, Nepal)
  • Douglas Patz (Agile Learning Center, New York, U.S.A.)
  • Joe Robertson (St. Peter's High School, Gloucester, U.K.)
  • K C Unesh (Kathmand University, Nepal)
  • P R Vaidyanathan (Indian Institute of Technology Gandhinagar, India)

each receive a cash prize of $200 USD (5 awarded)

Phase I Winners based on the most accurate/well-written submissions:

  • Alejandra González (Universidad Technológica Nacional – Instituto Nacional Superior del Profesorado Técnico, Argentina)
  • Dimitri Lozeve (University of Oxford, U.K.)
  • Dinesh Poudel (Jaya Multiple Campus, Nepal)
  • Douglas Patz (Agile Learning Center, New York, U.S.A.)
  • Du Xi (Australian National University, Australia)
  • K C Unesh (Kathmand University, Nepal)
  • Lynn Van Hauwe (University of Antwerp, Belgium)
  • Mohammed Malik (Turku International School, Finland)
  • P R Vaidyanathan (Indian Institute of Technology Gandhinagar, India)
  • Rafael Rodrigues Rocha de Melo (Kyoto University, Japan)

each receive a cash prize of $100 USD (10 awarded)

Previous Years

Details of the problems set in previous years (and the appropriate workspaces to help solve them) can be downloaded from the table below; this table also includes information on the main prize winners for each year.

Our blog includes posts relating to some of the problems set in previous years, with pointers on how they might be solved.

 TasksPhase II MaterialsWinnersWinner's Presentation
2018 Phase I Phase II  
2017 Phase I Phase II
2016 Phase I Phase II
2015 Phase I Phase II
2014 Phase I Phase II     1st place non-student
2013 Phase I Phase II
2012 n/a
2011
2010 1st place 2nd place
2009 n/a