#### Problem statment

Given an array of unsorted numbers and a target element.

Find if any two elements subtract to the target element or not.

You can loop through the array only once.

Constraint: Time complexity should be O(n)

Hint : Use map for data stroage

#### Algorithm

- While iterating over the array store elements in a map
- Calculate the
`current element + target`

OR`current element - target`

is already in the map or not