How to Get Rid of Recursion and Fix a Silly Error in Google

I will talk about researching different approaches to recursion optimization. I will consider and compare them with each other to get clear figures. Besides, I will cover optimization of tail recursion, tree traversal recursion, any recursion via DeepRecursiveFunction. I will tell you how during my research I discovered and fixed a silly error in Google code related to an attempt to optimize recursion.