LetterStrings | Topcoder Archive

Problem Statement

A letter-string is composed of letters ('A'-'Z','a'-'z') and dashes ('-'). The length of a letter-string is the number of characters in it not including dashes (in other words, the number of letters in the string). Given a list of letter-strings you will return the sum of their lengths.

Create a class LetterStrings that contains the method sum, which takes a String[], s, and returns an int representing the sum of the lengths of the given letter-strings.

Definition

Class:: LetterStrings
Method:: sum
Parameters:: String[]
Returns:: int
Method signature:: int sum(String[] s)
(be sure your method is public)

Constraints

s will contain between 1 and 50 elements, inclusive.
Each element of s will have length between 1 and 50, inclusive.
Each element of s will contain only letters ('A'-'Z','a'-'z') and dashes ('-').

Examples

```
{"-"}
```
```
Returns: 0
```
```
{"A"}
```
```
Returns: 1
```
```
{"-----Abc"}
```
```
Returns: 3
```

{"-A-B-C-D", "--------EFGHI", "JKLMNOPQR", "---STU-VW-XYZ"}

Returns: 26

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