pair_average

The pair with average

Instructions

Given sorted array of integers and target average implement a function which determine if there is a pair of values in the list where their average equals target average.

Challenge | Solution

Examples

has_pair_average?([], 1.0) # false

has_pair_average?([3, 4, 7, 9], 6.5) # true

has_pair_average?([3, 4, 7, 9], 3.0) # false

has_pair_average?([3, 5, 9, 7, 11, 14], 8.0) # true

Hints

Hint 1

Use double pointer