Count the number of elements in an Array – HackerRank Solution

In this post, we will solve Count the number of elements in an array HackerRank Solution. This problem (Count the number of elements in an Array) is a part of Linux Shell series.

Task

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.

Solution – Count the number of elements in an Array – HackerRank Solution

#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.
arr=($(cat))
echo ${#arr[@]}

Note: This problem (Count the number of elements in an Array) is generated by HackerRank but the solution is provided by CodingBroz. This tutorial is only for Educational and Learning purpose.