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Chapter 8: Problem 17

To define a two-dimensional array, _________ size declarators are required.

Short Answer

Expert verified
Answer: Two size declarators are needed for defining a two-dimensional array 鈥� one for the number of rows and another for the number of columns.

Step by step solution

01

Understand a two-dimensional array

A two-dimensional array is a data structure that can store data elements in a matrix-like format, with rows and columns. It is an array of arrays, where each element of the outer array is itself an array. This allows for multiple dimensions of data to be stored and accessed easily.
02

Understand size declarators

When defining an array, size declarators are used to indicate the dimensions of the array. The size declarator specifies how many elements the array can hold in each dimension. In C or C++, the size declarator is a number enclosed in square brackets [ ] following the variable name. For example, int arr[3] declares a one-dimensional array with 3 elements.
03

Determine the number of size declarators for a two-dimensional array

Since a two-dimensional array is an array of arrays, you need to define the size of both the outer array (number of rows) and the inner arrays (number of columns). Therefore, you need two size declarators when defining a two-dimensional array. The general syntax for declaring a two-dimensional array in C or C++ is: type array_name[rows][columns]. For example, int matrix[3][4] declares a two-dimensional array of 3 rows and 4 columns.

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Most popular questions from this chapter

The ________ indicates the number of elements, or values, an array can hold.

To pass an array to a function, pass the _______ of the array.

To allow an array of structures or an array of objects to be initialized, the struct or class declaration should include a(n) ________.

Starting values for the elements of an array may be specified with a(n) ____ list.

Each element of an array is accessed and indexed by a number known as a(n) ________.
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