interview tips

1. Coding: runnable, no bug, good style

2. Algorithm: Graph(BFS/DFS, Dijkstra, Bellman-Ford, Floyd-Warshall, Ford-Fulkerson)

                        DP(1D, 2D, recurrence relationships)  http://www.cppblog.com/menjitianya/archive/2015/10/23/212084.html

                        Data Structure(BST/AVL/B-tree, Trie, Sliding Window)

                       Compexity(Omega) P/NP/NP-Complete/NP-Hard

3. Design: bottom up/top down

                   design pattern, MVC

                   DB scheme

                   HTTP/SSL/TLS