Question

What is the output when the inputs are (0, 1, 2, 3, 4)

sum = 0
for i in range (1, 6):
-> if i % 2 == 0:
--> sum += int(input())
-> else:
--> sum -= int(input())
print(sum)

Answer 1

The output of the given Python code snippet with the inputs (0, 1, 2, 3, 4) is -2, since the operations performed on these inputs result in a sequence of subtraction and addition based on the parity of the index i.

Step-by-step explanation:

The given Python code snippet is designed to take five inputs and calculate a sum based on the inputs being added or subtracted from a starting sum of 0. The decision to add or subtract is determined by whether the index i is even or odd. When i is even (i % 2 == 0), it adds the input to the sum; otherwise, it subtracts the input from the sum.

Let's analyze the given inputs (0, 1, 2, 3, 4):

• For i = 1 (odd), the snippet subtracts 0.
• For i = 2 (even), the snippet adds 1.
• For i = 3 (odd), the snippet subtracts 2.
• For i = 4 (even), the snippet adds 3.
• For i = 5 (odd), the snippet subtracts 4.

The resulting sum after all of these operations is sum = (-0) + 1 + (-2) + 3 + (-4) = -2.

Therefore, the output of the code is -2.