<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Rewrite the following code to delete the elements from the list which are not even.
x = [1, 2, 3, 4, 5]<|im_end|>
<|im_start|>assistant
x = [i for i in x if i % 2 == 0]<|im_end|>
