Frage im Vorstellungsgespräch bei NEC Corporation

Programming round: 1) Sort an array without using Arithmetic operators. 2) Binary search Tree(Addition/deletion) 3) FInd a substring within a string 1 Interview round: Question related to programming round and some basic question of C and general discussion about interests 2nd Interview round: Database question: Normalization 3rd form with examples/explanation of covertion from one form to other. Operating system: Paging/Segmentation with examples and puzzles. And some basic of database, network and operating system.