Given a sequence of numbers, find the largest pair sum in the sequence.
For example
[10, 14, 2, 23, 19] --> 42 (= 23 + 19)
[99, 2, 2, 23, 19] --> 122 (= 99 + 23)
Input sequence contains minimum two elements and every element is an integer.
Given a sequence of numbers, find the largest pair sum in the sequence.
For example
[10, 14, 2, 23, 19] --> 42 (= 23 + 19)
[99, 2, 2, 23, 19] --> 122 (= 99 + 23)
Input sequence contains minimum two elements and every element is an integer.