Added one more Data Structure - Arrays

en/Data Structures/Arrays/array.md

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+# Arrays
+
+Arrays are the most basic data structures used in programming. Arrays are data structures that contain a group of elements. Typically these elements are all of the same data type, such as `char` or `int`.\
+All arrays consist of contiguous memory locations. We can access the elements with their index. The lowest address corresponds to the first element and the highest address to the last element.
+<p align="center">
+    <img width="60%" src="https://www.tutorialspoint.com/cprogramming/images/arrays.jpg">
+</p>
+
+**Array Declaration**
+`type arrayName [ arraySize ];`
+`type` is the datatype of the array elements
+
+**Array Initialization**
+`int array1[] = {1,2,3};`
+
+**Accessing Elements of Array**
+`int variable1 = array[0];`
+
+# Source
+
+- [Introduction to arrays](https://www.geeksforgeeks.org/introduction-to-arrays/)
+
+# YouTube
+
+- [Video Tutorial](https://youtu.be/NptnmWvkbTw)
+- [Video for understanding Arrays in C++](https://youtu.be/ibeGtDEQGz0)