Two-dimensional(2D) arrays are collection of similar elements where the elements are stored in certain number of rows and columns.

In C++, getlinet) is also used to read a line of text from the input stream. It can read the characters till it encounters a newline character or a delimiter specified by the user. This function is available in the < string >header.

str[l] = *
str[3] = NULL

Syntax: < datatype > < array_name > [size] = {value-1,value-2, .............value-n} ;

The memory space allocated for an array can be calculated using the following formula: Number of bytes allocated for type of array x Number of elements.

Values can be assigned to structure elements similar to assigning values to variables. Values can be assigned directly as similar to assigning values to Arrays.

(i) 25 bytes
(ii) 900 bytes

struct student
{
int exam no;
char name[50];
int marks[5];
};

Structure is a user-defined which has the combination of data items with different data types. This allows to group of variables of mixed data types together into a single unit. The structure provides a facility to store different data types as a part of the same logical element in one memory chunk adjacent to each other.

The declaration of a 2-D array is data-type array_name[row-size][col-size];
In the above declaration, data-type refers to any valid C++ data-type, array_name refers to the name of the 2-D array, row-size refers to the number of rows and col-size refers to the number of columns in the 2-D array.