# Task 1: Target Index
# Submitted by: Mohammad Sajid Anwar
# 
# You are given an array of integers, @ints and a target element $k.
# Write a script to return the list of indices in the sorted array where the element is same as the given target element.
# 
# Example 1
# Input: @ints = (1, 5, 3, 2, 4, 2), $k = 2
# Output: (1, 2)
# 
# Sorted array: (1, 2, 2, 3, 4, 5)
# Target indices: (1, 2) as $ints[1] = 2 and $ints[2] = 2
# 
# Example 2
# Input: @ints = (1, 2, 4, 3, 5), $k = 6
# Output: ()
# 
# No element in the given array matching the given target.
# 
# Example 3
# Input: @ints = (5, 3, 2, 4, 2, 1), $k = 4
# Output: (4)
# 
# Sorted array: (1, 2, 2, 3, 4, 5)
# Target index: (4) as $ints[4] = 4

def list_of_indices(ints, k)
    ints = ints.sort
    indexes = []
    ints.each_with_index do | value, idx |
        if value == k
            indexes.push idx
        end
    end

    printf "(%s) -> (%s)\n",
        ints.join(","),
        indexes.join(",")
end

ints = [1, 5, 3, 2, 4, 2]
k = 2
list_of_indices(ints, k)

ints = [1, 2, 4, 3, 5]
k = 6
list_of_indices(ints, k)

ints = [5, 3, 2, 4, 2, 1]
k = 4
list_of_indices(ints, k)