TL;DR: The fastest algorithm looks at every element once, keeping track of the largest one seen so far. Details. Intuition tells us that any correct algorithm must look at every element in the array, that's why we can't do better. Let's find an actual proof.
Drugs are addictive  because they either mimic or stimulate the production of brain chemicals that cause feelings of pleasure. After a period of time, your brain adjusts to the higher levels of the chemicals, and it becomes necessary to use more drugs to get the same effect.
What do you think is the root cause of most addiction? People use drugs for so many reasons. How do you think trauma from oneâs past influences addiction? Absolutely, it could be the only way they know how to cope with their thoughts or feelings. I see this a lot. What drugs do you think are the most dangerous? The least?