Kangaroo method on pattern matching with atmost K mismatches allowed
===

 I searched everywhere but didn't find a good, clear explanation on Kangaroo method. Only that I found was some ppts but were useless to me as I have not read kangaroo method before.Those ppts were for revision of the kangaroo method.

   Please if anybody can provide me a reading material on kangaroo method or a video tutorial link, it will be a great help.

thanx in advance 