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C Programming Arrays Quiz

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Questions and Answers

In C programming, what is the correct way to declare a 2D array?

int arr{3}{3};

int arr[3,3];

int arr[3][3]; (correct)

int arr(3,3);

What is the correct method to access the value at the second row and third column of a 2D array 'arr' in C?

arr[1][2] (correct)

arr{2}{3}

arr(1,2)

arr(2,3)

What is the size of a 1D array 'arr' declared as int arr[5] in C?

10 bytes

5 bytes

20 bytes

Depends on the machine architecture (correct)

Study Notes

Declaring 2D Arrays in C

A 2D array in C is declared as type array_name[row_size][column_size];, where type is the data type of the array elements, array_name is the name of the array, and row_size and column_size are the number of rows and columns respectively.

Accessing 2D Array Elements in C

The value at the second row and third column of a 2D array arr in C is accessed as arr[1][2], since array indices in C start from 0.

Size of 1D Arrays in C

The size of a 1D array arr declared as int arr[5] in C is 5, meaning it can store 5 integer elements.

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Description

Test your knowledge of C programming arrays with this quiz. Learn how to correctly declare and access elements in 2D arrays and determine the size of 1D arrays in C.