# Ruby

## Arrays
- [Contains Duplicate](arrays/contains_duplicate.rb)
- [Majority Element](arrays/majority_element.rb)
- [Maximum subarray sum (Kadane's Algorithm)](arrays/maximum-subarray-sum.rb)
- [Reverse Array](arrays/reverse-array.rb)
- [Single Number](arrays/single-number.rb)
- [Two Sum](arrays/two-sum.rb)