TheAlgorithms-Ruby/searches/linear_search.rb

18 lines
454 B
Ruby

# Looks through array for a value in O(n) time.
# Array does not need to be sorted.
def linear_search(array, key)
array.each_with_index do |current, index|
return index if current == key
end
nil
end
puts "Enter a space-separated list:"
arr = gets.chomp.split(' ').map(&:to_i)
puts "Enter a value to be searched:"
key = gets.chomp.to_i
puts if linear_search(arr, key) != nil
"Found at index #{linear_search(arr, key)}"
else
"Not found"
end