Microsoft Software Development Engineer interview questions

something about image processing which i have no experience

There are 3 onsite technical interviews. All of them start with a 5 minutes self introduction and most favorite project as warm up. Technical questions for each round: 1. How to detect whether two given linked list have common parts; 2.Anagram and extended to deal with large scale case; 3. Search for words in a random character matrix like a Gluttonous Snake game, given a dictionary of legal words for match, and required to analysis the time complexity.