Question
Consider the following pseudo-code: ```
function calculate(arr): sum = 0 for i from 0 to length(arr) - 1: if arr[i] % 2 == 0: sum = sum + arr[i] else: sum = sum - arr[i] return sum my_array = [1, 2, 3, 4, 5] result = calculate(my_array) print(result) ``` What will be the output of this code?Solution
Dry Run: `my_array = [1, 2, 3, 4, 5]` `sum = 0` `i = 0, arr[0] = 1` (odd): `sum = 0 - 1 = -1` `i = 1, arr[1] = 2` (even): `sum = -1 + 2 = 1` `i = 2, arr[2] = 3` (odd): `sum = 1 - 3 = -2` `i = 3, arr[3] = 4` (even): `sum = -2 + 4 = 2` `i = 4, arr[4] = 5` (odd): `sum = 2 - 5 = -3` Return `sum = -3`
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