Codeforces div-2 , 688 , A to E , editorial + thought process , reaching 2000 , hindi

Описание: solution of A :
https://codeforces.com/contest/1453/s...
solution of B:
https://codeforces.com/contest/1453/s...
solution of C:
https://codeforces.com/contest/1453/s...
solution of D:
https://codeforces.com/contest/1453/s...
solution of E:
https://codeforces.com/contest/1453/s...

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Time stamp
0:00 Intro
0:25 Problem A
3:25 Problem B
20:05 Problem C
37:45 Problem D
48:20 Problem E