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Previous Year Question (PYQs)

Length or number of data element of Array can be obtained from index set by which of the following formulae.

(a) Lower bound − Upper bound − 1

(b) Lower bound − Upper bound + 1

(c) Upper bound − Lower bound + 1

(d) Upper bound + Lower bound − 1





Solution

Number of elements in an array is calculated using:

Length = Upper Bound − Lower Bound + 1

Example:
If Lower Bound = 0 and Upper Bound = 9

Length = 9 − 0 + 1 = 10

Correct Answer: (c) Upper bound − Lower bound + 1


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