A data structure is a way of organizing and storing data in a computer so that it can be accessed and used efficiently.
A data structure is a way of organizing and storing data in a computer's memory so that it can be accessed and manipulated efficiently. There are many different types of data structures, including arrays, linked lists, trees, graphs, and hash tables.
Arrays are a collection of elements of the same type, and they are stored contiguously in memory. Linked lists, on the other hand, are a collection of nodes that contain a data element and a pointer to the next node. Trees are a hierarchical data structure that consists of nodes connected by edges. Graphs are similar to trees, but they can have cycles and are used to represent complex relationships between data elements. Hash tables are used for fast data retrieval by using a key to access a value.
Choosing the right data structure depends on the problem you are trying to solve and the characteristics of the data you are working with. The choice of data structure can greatly impact the performance and efficiency of your program.