On two occasions I have been asked [by members of Parliament]: 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question. Charles Babbage
Write a program to LCA of two given tree nodes.
All Binary Tree Values: 1 2 3 4 LCA of two nodes:2