[Codeforces] Round 1006(Div.3) Review(A~D)

https://codeforces.com/contest/2072 I review for 4 problems, but I passed only 3 problems(A, B, D) in the contest. If I had more time, I could pass C too..😭 my C submission after 20 minutes from the contest was passed. A - New World, New Me, New Arr...