A multidimensional array can be useful to organize subgroups of data within an array. In addition to organizing data stored in elements of an array, a
multidimensional array can store memory addresses of data in a pointer array and an array of pointers.Multidimensional arrays are used to store information in a matrix form.
e.g. a railway timetable, schedule cannot be stored as a single dimensional array.
One can use a 3-D array for storing height, width and length of each room on each floor of a building.
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Data Structure 