Statistics | Topcoder Archive

Problem Statement

A useful statistic in many applications is the range of a group of numbers. The range is defined as the difference between the largest element in the group, and the smallest element in the group. For example, the range of {1,5,7,3,8} is 7, since the difference between 1 and 8 is 7.

Your task is to write a class Statistics, with a method getRange, which takes a int[], numbers, and returns the range of the elements of numbers.

Definition

Class:: Statistics
Method:: getRange
Parameters:: int[]
Returns:: int
Method signature:: int getRange(int[] numbers)
(be sure your method is public)

Constraints

numbers contains between 2 and 50 elements, inclusive.
Each element of numbers is between -1,000,000 and 1,000,000, inclusive.

Examples

```
{1,5,7,8,3}
```
```
Returns: 7
```
This is the example mentioned in the problem statement.
```
{1,2,3,2,1}
```
```
Returns: 2
```
The range is 3 - 1 = 2.
```
{1000,-1000,0}
```
```
Returns: 2000
```
```
{-1000000,1000000}
```
```
Returns: 2000000
```
```
{45,45,45,45,45}
```
```
Returns: 0
```

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