B. Last Year's Substring | Codeforces Round #690 (Div. 3) | CODE EXPLAINER

Question Link : http://codeforces.com/contest/1462/problem/B Code linK : https://github.com/bhallashivam1997/Code_Explainer_Youtube/blob/main/Codeforces/Last_Year_Substring.cpp Telegram channel link : https://t.me/joinchat/QJnEnRxO5seEcniywdbS3w Instagram link : https://www.instagram.com/code_explainer/?hl=en