Data Structure Questions Asked in Interview

There are two techniques by using which, the elements of a 2D array can be stored in the memory. Row-Major Order: In row-major ordering, all the rows of the 2D array are stored into the memory contiguously. First, the 1st row of the array is stored into the memory completely, then the 2nd row of … Read more

The multidimensional array can be defined as the array of arrays in which, the data is stored in tabular form consists of rows and columns. 2D arrays are created to implement a relational database lookalike data structure. It provides ease of holding the bulk of data at once which can be passed to any number … Read more

It can be done by using an indexed loop such that the counter runs from 0 to the array size minus one. In this manner, you can reference all the elements in sequence by using the loop counter as the array subscript. To reference all the elements in a one-dimensional array, you typically loop through … Read more

Arrays are defined as the collection of similar types of data items stored at contiguous memory locations. It is the simplest data structure in which each data element can be randomly accessed by using its index number. An array is a fundamental data structure consisting of a collection of elements, each identified by at least … Read more

Polish and Reverse Polish notations. In the evaluation of arithmetic expressions using prefix and postfix forms, the following notations are commonly used: Prefix Notation (also known as Polish Notation): In prefix notation, the operator precedes its operands. For example, the expression “+ 3 4” represents the addition of 3 and 4. Postfix Notation (also known … Read more