[Arrays]

Question:

What is the length of the array int arr[],
if its first index is x and the last index is y?

Question

[Arrays]

Question:


What is the length of the array int arr[], 
if its first index is x and the last index is y?

Accepted Answer

Answer:


Length = y - x + 1


Explanation:


Array length is calculated using:



Last Index - First Index + 1



Here:



    First index = x
    Last index = y



Therefore:



Length = y - x + 1


Example:


If:



First index = 3
Last index = 7



Then:



Length = 7 - 3 + 1
       = 5



The array elements are:



arr[3], arr[4], arr[5], arr[6], arr[7]



Total elements = 5


Conclusion:


    Array length depends on first and last index
    Formula used:
        Length = Last Index - First Index + 1

[Arrays]

Question:

What is the length of the array `int arr[]`, if its first index is x and the last index is y?

Answer with Explanation

[Arrays] Question: What is the length of the array int arr[], if its first index is x and the last index is y?

Answer with Explanation

[Arrays]

Question:

What is the length of the array `int arr[]`, if its first index is x and the last index is y?