This contains some standard coding problems and their solutions on tree data structure Every folder name indicates the problem name. Inside every folder there is - i)a "TreeNode.h" which contains the class defination of a Tree node. ii)a "Treefunctions.h" which contains the input and output functions for a tree iii) a "solution.h" which contains the actual solution function for the particular problem iv)a ".cpp" file which contains the main function