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.
A common misconception is that Drug Addiction is solely due to use of illegal substances, but that is not always the case. Alcohol is the drug most abused, and it is legal. Nicotine (cigarettes) and prescription drugs are other examples.Even caffeine is a drug. common misconception is that Drug Addiction is solely due to use of illegal substances, but that is not always the case. Alcohol is the drug most abused, and it is legal. Nicotine (cigarettes) and prescription drugs are other examples. Even caffeine is a drug.