algorithms (when possible).

Prior to C++14, many STL container algorithms required size checks
because because the second container only used one iterator as an
input. This is not an issue for some algorithms since C++14 added
two iterator versions.

PiperOrigin-RevId: 575296640
Change-Id: I9e4fc8c75cba7cdb0cde10bdd7c5c75e07f414ae