In this he has said that value of rear will be initialised as capacity-1. But for an empty queue shouldnt it be 0?
In the last video also he took it as zero.
Doubt on value of rear
It doesn’t really matter. I mean it depends on how you wish to implement your queue. If while doing your enqueue operation , you wish to first increment rear and then add value at rear , then you should initialize rear to capacity - 1 and if you wish to first put value at rear and then increment it, then you should initialize it to 0.
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