AtCoder Beginner Contest 186 | Brick | Blocks on Grid | Unlucky 7 | Sum of difference

Question Link : https://atcoder.jp/contests/abc186/tasks Code linK : https://atcoder.jp/contests/abc186/su... https://atcoder.jp/contests/abc186/su... https://atcoder.jp/contests/abc186/su... https://atcoder.jp/contests/abc186/su... Telegram channel link : https://t.me/joinchat/QJnEnRxO5seEcni... Instagram link : https://www.instagram.com/code_explai... Time stamps: 00:00 - Problem A 00:57 - Problem B 02:50 - Problem C 06:44 - Problem D