You must implement the check_sum() function which takes in a list and returns True if the sum of two numbers in the list is zero. If no such pair exists, return False.

svg viewer

Sample Input

[10, -14, 26, 5, -3, 13, -5]

Sample Output

True

Coding Challenge#

There are several ways of approaching this problem. However, we urge you to try it with loops.

If you feel stuck, you can always refer to the solution review in the next lesson.