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Solution Review: A Sum of Zero

Explore the step-by-step solution to the sum of zero problem using nested loops and conditional checks. Understand how to iterate through lists, compare elements, and return results effectively in Python.

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Solution

Let’s explore the solution to the problem of A Sum of Zero.

Python 3.10.4
def check_sum(num_list):
    for first_num in range(len(num_list)):
        for second_num in range(first_num + 1, len(num_list)):
            if num_list[first_num] + num_list[second_num] == 0:
                return True
    return False

Explanation

Here’s a line-by-line explanation of the code for the A Sum of Zero problem:

  • Line 1: Defines the function ...