The University of Jaffna (UoJ) coding competition that we refer to as “UoJCoders” is aimed to enhance the problem-solving skills and programming skills among the undergraduate students in computing to produce efficient programmers. The competition is a 12-hours inter-university coding competition inspired by IEEEXtreme. The competition is open to all undergraduate students in Sri Lanka, especially for those who follow degrees in the computing discipline. UoJCoders v1.0 was held on 16th and 17th of March 2019 in the Department of Computer Science, University of Jaffna. The 12-hours coding competition was conducted online using the hackerrank platform.