strtok

`strtok` is a function in programming that breaks a string into smaller parts called tokens, based on specified separator characters like spaces or commas. Imagine you have a sentence, and you want to split it into words; `strtok` helps do that automatically. It processes the original string, returning one token at a time when called repeatedly, until no more tokens remain. This is useful for parsing input or data, making it easier to work with individual elements within a larger string.