Mike and lift game problem

#1

I’m stuck in mike and lift game problem, can anyone explain the problem once and check my solution.
problem link - https://hack.codingblocks.com/app/contests/1157/654/problem
code link - https://ide.codingblocks.com/s/337163

#3

hello @dishask99 first i would like to ask you what you have understood and your approach so that i can know where you are going wrong .

#4

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