91.DFS of a graph, done; (2018-5-30)
92.Modify 1017.cpp; done; (2018-6-1)
93.Generate preorder from postorder and inorder; (2018-6-2)
94.Generate post order from preorder and inorder; (2018-6-2)
95.Change first_addr to head; change data to key; use while to replace for; done; (2018-6-7)
96.Change rank to level, done; (2018-6-9)
97.Sort sequence according to their value; done; (2018-6-21)
98.Add tree leaf to tree; modify get_height to get distance; done; (2018-6-24)
99.Learn how to initialize vector; vector post, in, level(100000, -1); (2018-6-25)
91.DFS of a graph, done; (2018-5-30) 92.Modify 1017.cpp; done; (2018-6-1) 93.Generate preorder from postorder and inorder; (2018-6-2) 94.Generate post order from preorder and inorder; (2018-6-2) 95.Change first_addr to head; change data to key; use while to replace for; done; (2018-6-7) 96.Change rank to level, done; (2018-6-9) 97.Sort sequence according to their value; done; (2018-6-21) 98.Add tree leaf to tree; modify get_height to get distance; done; (2018-6-24) 99.Learn how to initialize vector; vector post, in, level(100000, -1); (2018-6-25)