0 votes 0 votes NK987 asked Dec 8, 2017 NK987 278 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply Anu007 commented Dec 8, 2017 i edited by Anu007 Dec 8, 2017 reply Follow Share d is answer.. 0 votes 0 votes NK987 commented Dec 8, 2017 i edited by NK987 Dec 8, 2017 reply Follow Share Actually Ans is d... Actually i was doing a silly mistake before,Now i got it.. before i was initializing "last" at every iteration step.. but it has to be initialise only one time 0 votes 0 votes Please log in or register to add a comment.