Software engineers write programs to design and develop computer software. Interviews are highly technical, so come ready to work through coding problems and math brainteasers. The specific questions you are asked will depend on what type of programming position you are looking for. Try researching a specific software discipline such as web development, application development, or system development.
You have 4 strings. You can permute each string in anyway you want and then you are going to construct a trie from these 4 strings. What is the minimum possible number of nodes in this trie?