Video editorial with solutions in C++, Java, Python: https://youtu.be/ItUsACYn5yM
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Video editorial of HMAPPY1 Codechef November Challenge 2018 | Appy Loves One ( HMAPPY1 ) - YouTube
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thankyou very much!
Explanation of Chef and Difficult Contests (CHFTIRED) CodeChef November Long Challenge - Chef and Difficult Contests (CHFTIRED) - YouTube