Cannot think of another optimum solution

#1

My written code is showing time exceed error and can’t think of another optimum solution. Help in finding one.

#2

@2304ambikagupta_35a5bee93bbf353e You cannot use ‘while’ loop instead of ‘if’ condition in preorderPrint Function bcoz that is creating an infinite loop and your code violates the time limit. except for this your code and logic are totally fine and it will not give any TLE and will pass all test cases. So instead your preorderPrint should look like this :

public void preorderPrint(Node r){
		if(r == null)
		  return;
		System.out.print(r.data+" ");
		preorderPrint(r.left);
		preorderPrint(r.right);
	}
#3

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