A Standard Library algorithm cannot:
Return an iterator.
Take two iterators as arguments to specify a range.

Standard Library algorithms are designed with versatility in mind, ensuring they can be applied to a wide range of containers. However, they have limitations that can trip up even seasoned developers. One such limitation is that if a container provides iterators that fulfill the algorithm’s minimum criteria, but have vastly different behaviors (like bidirectional versus random access), it could lead to unexpected consequences or runtime errors. Always check the iterator requirements before implementing an algorithm!

In terms of practical application, consider this: when using algorithms like std::sort, performance hinges not just on the underlying data but on the iterator capabilities. If you mistakenly apply a sorting algorithm to a linked list with forward iterators, you’ll likely discover it runs much slower than intended! So, know your iterators well; they’re not just pointers, they’re the keys to performance!