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 2019 APL Problem Solving Competition

The 11th annual International APL Problem Solving Competition is now closed

Congratulations to the winners! 

Prizes

Phase II – Grand prize winner

  • Jamin Wu (Monash University, Australia)

receives a cash prize of $2,500 USD and an invitation to present their winning work at Dyalog '19 in Denmark

Phase II – second place

  • Rasmus Précenth (Uppsala University, Sweden)

receives a cash prize of $1,250 USD

Phase II – third place

  • Douglas Patz (Agile Learning Center, New York, U.S.A.)

receives a cash prize of $750 USD

Phase II – Winning Professional Entrant

  • Torsten Grust (Germany)

receives a delegate package registration for Dyalog '19 in Denmark

Phase II winners

  • Fredrik Mattisson (Uppsala University, Sweden)
  • Joe Robertson (Durham University, U.K.)
  • Louis de Forcrand (Geneva University, Switzerland)
  • Rafael Rodrigues Rocha de Melo (Kyoto University, Japan)
  • P R Vaidyanathan (Indian Institute of Technology Gandhinagar, India)

each receive a cash prize of $200 USD (5 awarded) – winners selected randomly from submissions that have a correct solution to any problem in any phase II problem set

Phase I winners

  • David Cao (University of California: San Diego, U.S.A.)
  • Douglas Patz (Agile Learning Center, New York, U.S.A.)
  • Dzintars Klušs (Riga State Gynmasium No. 1, Latvia)
  • Fredrik Mattisson (Uppsala University, Sweden)
  • Louis de Forcrand (Geneva University, Switzerland)
  • Maksim Podkorytov (Florida State University, Florida, U.S.A.)
  • Mohammed Malik (Turku International School, Finland)
  • P R Vaidyanathan (Indian Institute of Technology Gandhinagar, India)
  • Rasmus Précenth (Uppsala University, Sweden)
  • Zoe Kane (Greenville Technical College, South Carolina, U.S.A.) PENDING PROOF OF STUDENT STATUS
each receive a cash prize of $100 USD (10 awarded) – winners selected based on most accurate/well-written submissions

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
2019 Phase I Phase II  
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 -
2011
2010 1st place 2nd place
2009 n/a