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.
Legal marijuana supporters have argued that itâs not as addictive as other âharderâ drugs, such as heroin and cocaine. Addiction treatment specialists, however, have seen firsthand that long term use does lead to marijuana addiction. Research suggests as many as 10% of users will develop dependence over time.