In the problem what is the meaning of true and false.
10 true 20 true 40 false false true 50 false false true 30 true 60 false false true 73 false false
10 true 20 true 40 false false true 50 false false true 30 true 60 false false true 73 false false
does the true after 10 means there is a node at left of 10?