Algorithm 1.Dynamic Programming 2.Greedy Algorithm 3.DFS&BFS 4.Stack 5.Network-Flow 6.Math 7.Backtracking 8.Brute-Force 9.Lis(Longest Increasing Subsequence) 10.Sorting 11.Binary Search 12.SW Expert Academy(SAMSUNG) 13.etc(Competition. ex.KAKAO Blind Test)