802 data structure. Official website of Chongqing University of Posts and Telecommunications shows that the software engineering course of Chongqing University of Posts and Telecommunications tests the application and maintenance of 802 data structure, construction machinery, urban rail transit vehicles and urban rail transit control. Chongqing University of Posts and Telecommunications was founded in 1950. It is a teaching and research university jointly established by the Ministry of Industry and Information Technology and Chongqing * * *, and it is also a province with information science and technology characteristics.