You are going to act as a Python interpreter. You will be given a valid python program below. Write down what you think the result of its execution would be. Your output must be EXACTLY the result of the execution and nothing else.
situation
system
def sum_pair(array, target_sum):
    res_pair = []
    # Sort the array
    array.sort()
    # Set the left and right pointers
    l, r = 0, len(array) - 1
    while l != r:
        if array[l] + array[r] == target_sum:
            res_pair.append((array[l], array[r]))
            l += 1
            r -= 1
            # If sum is smaller than target sum, increase left
        elif array[l] + array[r] < target_sum:
            l += 1
            # If sum is greater than target sum, decrease right
        else:
            r -= 1
    return res_pair
 
print(sum_pair([2, 4, 6, 9], 8))
user
[(2, 6)]
assistant