Codeforces Round 911 (Div. 2) || Editorial for Problem A,B,C

A. Cover in Water || B. Laura and Operations || C. Anji's Binary Tree contest URL - https://codeforces.com/contest/1900 Contact me:- LinkedIn - https://www.linkedin.com/in/swapnil-tayal-53a5b4221/ Instagram - https://www.instagram.com/swapnil_tayal/ #codeforces #cp #cpp #educational #EducationalCodeforces #div2 #codeforcessolutions #editorial #educational #Codeforces911 #911