HackerRank Slice an Array problem solution

In this HackerRank Slice an Array problem solution In this challenge we have given a list of countries, each on a new line, your task is to read them into an array. Then slice the array and display only the elements lying between positions 3 and 7, both inclusive. Indexing starts from 0.

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

Display the sliced portion of the array of country names, with a space between each of them.

Sample Input

Namibia  

Nauru  

Nepal

Netherlands

NewZealand

Nicaragua

Niger

Nigeria

NorthKorea

Norway

Sample Output

Netherlands NewZealand Nicaragua Niger Nigeria

Explanation

We displayed the sliced portion of the array.

Problem solution.

declare -a Array=()
read X
while [ "" != $X ]
do
    Array=("${Array[@]}" "$X")
    read X
done
echo ${Array[@]:3:5}

Second solution.

#!/bin/bash
i=0
while read line
do
    countries[i]=$line
    ((i++))
done
echo ${countries[@]:3:5}

Third solution.

#!/bin/sh

sed -n -e '4,8p;' | tr 'n' ' '

Fourth solution.

A=($(cat)) 
echo ${A[@]:3:5}