The reference to the root of the tree should be set to null
<h3>Can the root of a binary tree be null?</h3>
- Only the subtrees are nulled out, the root always remains and will never be set to null.
<h3>What is null root?</h3>
- null-, root. -null- comes from Latin, where it has the meaning "none; not one.
- '' This meaning is found in such words as: annul, null, nullify.
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Automobile repair shops produce many types of waste -- some hazardous, some not necessarily hazardous but still potentially damaging to the environment if not handled properly, and all requiring proper treatment and/or disposal at significant cost to the business. A list of the types of waste that the shop owner or manager must contend with would include:
solvents (paints and paint thinners)
antifreeze
scrap metal
batteries and other auto parts
oils and oil filters
fuels of various types
acids and alkalis (contaminated rags and towels)
Whatever the nature and characteristics of the waste may be, it all has one thing in common: All waste represents loss of resources and loss of money.
Answer:
no
Explanation:
I believe that the driving age should not be raised to the age of twenty-one because most teens have jobs, places to go, and responsibilities to take care of. As a teen, it would be useful to be able to drive to and from school, practices, and more because most times, parents are not always available. Teens can also experience pre-adulthood which would mean taking care of car payments, insurance payments, and simple tasks as to learning how to get gas on their own.
1. userVal < 0 ? "negative" : "positive"
2. updateDirection == 1 ? numUsers++ : numUsers--;
