Question

1. What is an array? Is there a difference between a variable vs array? What is an off by one error?

2. Look at the following pseudocode:

constant integer SIZE = 3

Declare integer numbers[SIZE] = 1, 2, 3

a. What value is stored in numbers[2]?

b. What value is stored in numbers[0]?

Answer 1

1 Array array is a data structure contains the group & elements which are all of the same data type. And the elements are stored at Contiguous memory locations. We can randomly access the inder. elements of array asing Example memory Location 301 302 303 304 13 0 1 2 Index * Array holds multiple values whereas an ordinary variable hold a single value However a variable can also be a structure or a Union capable of holding multiple values, and an array can be thought as a single variable. So, it is not generally right to differentiate a variable and an array Oop by one error * off by one error is a logical error. involving the equivalent op a boundary condition

* This error is actured while a programmer makes mistakes using e-, or fails to take into account that sequence starts at à rather than i. Example Array inder starts with zero. array [3] = [0,1,2} for (index=2; index <3i++) printf ("%d", array [index]); output. 1.2 This is off-by-one error. Here the first element at inden ő is not displayed 2 SIZE: 3 numbers [size] = 1,2,3 numbers [2] = 3 numbers [6]2. a 5