Arrays
Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the
same type. An array is used to store a collection of data, but it is often more useful to think of an
array as a collection of variables of the same type.
An array is a variable that can store multiple values. For example, if you want to store 100 integers,
you can create an array for it.
Single Dimensional Array:
Declaration: dataType arrayName[arraySize];
Keynotes:
Arrays have 0 as the first index, not 1. In this example, mark[0] is the first element.
If the size of an array is n, to access the last element, the n-1 index is used. In this
example, mark[4]
Suppose the starting address of mark[0] is 2120d. Then, the address of the mark[1] will
be 2124d. Similarly, the address of mark[2] will be 2128d and so on.
This is because the size of a float is 4 bytes.
Example:
#include <stdio.h>
int main() {
int values[5];
printf("Enter 5 integers: ");
for(int i = 0; i < 5; ++i)
{
scanf("%d", &values[i]);
}
printf("Displaying integers: ");
for(int i = 0; i < 5; ++i)
{
printf("%d\n", values[i]);
}
return 0;
}
