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nfa, dfa What is the pigeonhole principle? mutex virtual function memory allocation malloc the difference between a struct and a class what is a pointer Expand A ^ ( B v C ) java garbage collection What is the 4-color theorem? implementation of sin and cos in a calculator Difference between ++a and a++? Difference between using <stdio.h> and "stdio.h"

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implement stack using arrays convert nfa to dfa lots and lots of behavioral questions if you had 0's in a linked list of say 5 elements and you want to know which nodes you have already visited, how would you do that? fibonacci using recursion what is one of the problems with recursion? (answer: stack overflow might occur)

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