In the following Python code:a = 45b = 67a = a + bb = a – ba = a – bWhat is the status of variable a and b after the execution of the script?

The Python code you've provided is a series of arithmetic operations and assignments. Here's the step by step explanation:

1. The variable a is assigned the value 45.
2. The variable b is assigned the value 67.
3. The statement a = a + b adds the values of a and b (which is 45 + 67 = 112), and assigns the result back to a. So, a now equals 112.
4. The statement b = a - b subtracts the value of b from a (which is 112 - 67 = 45), and assigns the result back to b. So, b now equals 45.
5. The statement a = a - b subtracts the value of b from a (which is 112 - 45 = 67), and assigns the result back to a. So, a now equals 67.

So, after the execution of the script, the value of a is 67 and the value of b is 45. This is a common algorithm for swapping the values of two variables.