Here are the video solutions in the form of a post-contest discussion for problems A, B, C, D of Educational Codeforces Round 163. The live discussion was done with students of TLE Eliminators, this is the recording of the same. We hope this will be useful for you in up-solving this contest.
Solution Codes:
Problem A : https://pastebin.com/j0yyV6XK
Problem B : https://pastebin.com/yYvH5nrC
Problem C : https://pastebin.com/e0hgiYVN
Problem D : https://pastebin.com/7ZGCE6eQ
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Timestamps:-
0:00 Problem A
6:20 Problem B
18:07 Problem C
28:46 Problem D