Class: Algorithmable::Cups::TwoSum::Quadratic

Inherits:
Object
  • Object
show all
Defined in:
lib/algorithmable/cups/two_sum.rb

Overview

Given an array of integers, find two numbers such that they add up to a specific target number.

The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2. Please note that your returned answers (both index1 and index2) are not zero-based.

For example:

Input: numbers=7, 11, 15, target=9 Output: index1=1, index2=2

Instance Method Summary collapse

Instance Method Details

#solve(collection, target) ⇒ Object


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# File 'lib/algorithmable/cups/two_sum.rb', line 13

def solve(collection, target)
  result = {}
  collection.each_with_index do |_, index|
    j = index + 1
    while j < collection.size
      if collection[index] + collection[j] == target
        result[index] = collection[index]
        result[j] = collection[j]
      end
      j += 1
    end
  end
  result
end