I was reading the editorial for CHEVINV , and got the basic concept behind the solution but was having trouble implementing it.
For better understanding, I checked out authors solution of the problem, but couldn’t relate it with the editorial.
So, I would like to suggest the authors/testers to add more comments in the posted solutions to make the code more comprehensible for beginners like me.
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Instead of commenting to the author , i would get other basic books regarding this topics which will make me to learn more
same thought!