We move front to points first index of arrayīelow is the implementation of above idea.This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
It's means we have no more elements in array so Last index [ now first inserted element atĮlse IF front points to the last index of the array It's means we have to move rear to points IF Front = 0 || initial position, move FrontĮlse IF Rear points to the first index of array
Inserting First element in deque, at either front or rear will lead to the same result.Īfter insert Front Points = 0 and Rear points = 0Īnd push current key into Arr = keyī). We enqueue(push) an item at the rear or the front end of qedue and dequeue(pop) an item from both rear and front end.ġ. Recommended: Please try your approach on first, before moving on to the solution.įor implementing deque, we need to keep track of two indices, front and rear.
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