Codeforces Round 686 Div-3 A to D Solutions , Hindi

Hello Guys,
In this video we are discussing solution of Codeforces Round 686 Div-3

Solution
Problem A : codeforces.com/contest/1454/submission/99409144
Problem B : codeforces.com/contest/1454/submission/99418877
Problem C : codeforces.com/contest/1454/submission/99428650
Problem D : codeforces.com/contest/1454/submission/99444104

Timecodes
00:00 Intro

00:20 Problem A
02:48 Problem B
07:45 Problem C
16:10 Problem D