Not able to understand this

#1

Can you please provide me a hint for this question.
Please tell how can I proceed with this one.

#2

Hey @cbcao263
I would recommend you to go through this video on help ramu problem,

Help Ramu in min cost - HackerBlocks Problem Analysis

and if u didnt understood any logic, plz let me know…

#3

Thanks a lot for this Mam.
Mam Please solve one more doubt too.


This one is giving correct output.
While,

This one’s not.
Please tell me the doubt in this one.

#4

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