# Count the number of elements in an Array HackerRank Solution

#### ByBrokenprogrammers

Dec 11, 2022

Hello Programmers, In this post, you will know how to solve the Count the number of elements in an Array HackerRank Solution. This problem is a part of the HackerRank Linux Shell Series.

One more thing to add, don’t directly look for the solutions, first try to solve the problems of Hackerrank by yourself. If you find any difficulty after trying several times, then you can look for solutions.

## Count the number of elements in an Array HackerRank Solutions

### Problem

Given a list of countries, each on a new line, your task is to read them into an array and then display the count of elements in that array.

Input Format

A list of country names. The only characters present in the country names will be upper or lower case characters and hyphens.

Output Format

A single integer – the number of elements in the array.

Sample Input

Namibia
Nauru
Nepal
Netherlands
NewZealand
Nicaragua
Niger
Nigeria
NorthKorea
Norway

Sample Output

10

Explanation

There are 10 elements in the array – i.e. the given list has the names of 10 countries.

### Count the number of elements in an Array HackerRank Solutions

```#You are given a list of countries, each on a new line. Your task is to read them into an array and then transform them in the following way:The first capital letter (if present) in each element of the array should be replaced with a dot ('.'). Then, display the entire array with a space between each country's names.
arr=(\$(cat))
echo \${arr[@]/[A-Z]/.}```

Note: This problem  (Count the number of elements in an Array) is generated by HackerRank but the Solution is Provided by BrokenProgrammers. This tutorial is only for Educational and Learning purposes.