Here I try to solve some A. problems including A. promblems of Junior Training Sheet V7.0 (https://docs.google.com/spreadsheets/d/1iJZWP2nS_OB3kCTjq8L6TrJJ4o-5lhxDOyTaocSYc-k/edit#gid=84654839).
Ahmed-Elgohary1/codeforce-A.-problams-solution
the difficulty of those problems vary from 800 to 1600
C++