PROBLEM F5-COMPUTER SYSTEMS 1. Please provide pseudo code for following questions 1.1 How to add a node into a binary search tree? 1.2 How to delete a node from a binary search tree? E.g., given the input (2, 8, 9, 4, 0, 1, 3, 6), i. Construct a binary search tree according to the input sequence ii. Delete the node "4" 1.3 How to join two trees into one tree? 1.4 How to split one tree into two trees