Answer:
The two main differences between arrays and structures are as following according to me :-
1. Array is collection of data elements of same data type while a structure is collection of variables of different data types.
2.Array is a primitive data type while structure is a user defined data type.
There are other differences also which are as following:-
1. The size of array is fixed while the size of structure is not fixed as structure can contain different variables of different data types.
2.array is declared as following :-
int array [100];
where 100 is the size of the array means it can store up to 100 integer values.
struct class{
int roll_number;
char *name;
int admission_no;
};
3.Traversing and searching in an array is easy and fast while it is difficult and slow in structures.