Find the output of the following code:

x=-2
y=2
x+=y
y-=x
print (x,y)

0 2

Working

x += y

The += operator adds the value of y to x and assigns the result back to x.

• Current values are:
  • x = -2
  • y = 2
• Calculation: x + y = -2 + 2 = 0
• Updating x: x += 2 means x = x + 2
• So, x = -2 + 2 = 0.

y -= x

The -= operator subtracts the value of x from y and assigns the result back to y.

• Current values are:
  • x = 0
  • y = 2
• Calculation: y - x = 2 - 0 = 2
• Updating y: y -= 0 means y = y - 0
• So, y = 2 - 0 = 2.

print(x, y)

The final values of the variables are:

• x = 0
• y = 2

Hence, the output of the program is:

0 2