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Which of the following array position will be occupied by a new element being pushed for a stack of size N elements(capacity of stack > N)?

(a) S[N-1]

(b) S[N]

(c) S[1]

(d) S[0]

This intriguing question originated from Stack using Array in chapter Abstract Data Types of Data Structures & Algorithms I

I had been asked this question during a job interview.

1 Answer

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Best answer
Right answer is (b) S[N]

Explanation: Elements are pushed at the end, hence N.

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