1111A - Superhero Transformation I have tried map for tracking either a char is vowel or consonant.And then comparing both the map's element, I may have my expected solution.But implementing map it came to my mind that map is a sorted container.So I google it and from stackoverflow I found this articlefifo_map which actually acts according to plan.But using above mentioned way caused a compilation error(No such directory).Is there any way to include external headers?