One-Dimensional Arrays in C

A one-dimensional array can be viewed as a linear sequence of elements. We can only increase or decrease its size in a single direction.


Only a single row exists in the one-dimensional array and every element within the array is accessible by the index. In C, array indexing starts zero-indexing i.e. the first element is at index 0, the second at index 1, and so on up to n-1 for an array of size n.

One Dimensional Arrays in C

In C, an array is a collection of elements of the same type stored in contiguous memory locations. This organization allows efficient access to elements using their index. Arrays can also be of different types depending upon the direction/dimension they can store the elements. It can be 1D, 2D, 3D, and more. We generally use only one-dimensional, two-dimensional, and three-dimensional arrays.

In this article, we will learn all about one-dimensional (1D) arrays in C, and see how to use them in our C program.

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