Objective
Today we’re expanding our knowledge of Strings and combining it with what we’ve already learned about loops. Check out the Tutorial tab for learning materials and an instructional video!
Task
Given a string, S, of length N that is indexed from 0 to N-1, print its even-indexed and odd-indexed characters as 2 space-separated strings on a single line (see the Sample below for more detail).
Note: 0 is considered to be an even index.
Input Format
The first line contains an integer, T (the number of test cases).
Each line of the T subsequent lines contain a String, S.
Constraints
- 1 <= T <= 10
- 2 <= length of S <= 10000
Output Format
For each String Sj(where 0<=j<=T-1), print Sj’s even-indexed characters, followed by a space, followed by Sj’s odd-indexed characters.
Sample Input
2
Hacker
Rank
Sample Output
Hce akr
Rn ak
Explanation
Ruby Implementation
T = gets.to_i S = Array.new Output = Array.new T.times do | array_index | S.push(gets.chomp) end T.times do | array_index | temp_string = S[array_index] string_count = S[array_index].to_s.length odd = "" even = "" string_count.times do | string_index | if(string_index %2 == 0) even = even + temp_string[string_index] else odd = odd + temp_string[string_index] end end Output.push(even + " " + odd) end puts Output
Source: https://www.hackerrank.com/challenges/30-review-loop/copy-from/30480794