Why array index in C starts from zero?

Answer 1

My view (may be wrong)

If you start from 0 you will save memory space as compare to 1 for example you need three bits to represent the 8 numbers (0--7) if numbers are from 1--8 then you need 4 bits....

Comments

Best reason among all the reasons...

Answer 2

In C, the name of an array is essentially a pointer, a reference to a memory location, and so the expression array[n] refers to a memory location n-elements away from the starting element. This means that the index is used as an offset. The first element of the array is exactly contained in the memory location that array refers (0 elements away), so it should be denoted as array[0].

Credit- Stackoverflow

Answer 3

Index in an array represents the distance of an element from the beginning of the array.
So, a[0] is actually *(a+0) - the element at the 0th distance from the start of the memory region.
If the distance is 1, then you are at one element away from the beginning.

Answer 4

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