1 votes 1 votes closed with the note: Done T(n) = 2T(n/2) + log n By substitution T(n) = 4T(n/4) + 2log n/2 + logn I got stucked here Algorithms time-complexity algorithms + – aka 53 asked Nov 21, 2017 • closed Nov 21, 2017 by aka 53 aka 53 2.5k views comment Share Follow See all 4 Comments See all 4 4 Comments reply joshi_nitish commented Nov 21, 2017 reply Follow Share using masters theorem it will give, O(n) 0 votes 0 votes aka 53 commented Nov 21, 2017 reply Follow Share Yes we can get it by Master thm but just wanted to know how to proceed further using back Substitution 0 votes 0 votes Rupendra Choudhary commented Nov 21, 2017 reply Follow Share refer this. https://cs.stackexchange.com/questions/57424/solving-tn-2tn-2-log-n-with-the-recurrence-tree-method 0 votes 0 votes aka 53 commented Nov 21, 2017 reply Follow Share Yeah thanks 0 votes 0 votes Please log in or register to add a comment.