Data structures (Computer science) 89 Congresses 20 Computer algorithms 12 Pascal (Computer program language) 12 Computer programming 10 Database management 10 Data processing 9 Computational complexity 8 Trees (Graph theory) 8 Programming languages (Electronic computers) 6 C (Computer program language) 5 File organization (Computer science) 5 Abstract data types (Computer science) 4 Programming 4 Computer architecture 3 Electronic digital computers 3 Semantics 3 Algorithms 2 Computer programs 2 Computer storage devices 2 Electronic data processing 2 Modula-2 (Computer program language) 2 Parallel processing (Electronic computers) 2 Structured programming 2 ALGOL (Computer program language) 1 Ada (Computer program language) 1 Algebra 1 Automatic programming (Computer science) 1 BASIC (Computer program language) 1 COBOL (Computer program language) 1