Second, have you tried pasting any syntax errors you get back into the chat window? Usually, GPT will try to fix them.

Third, you can have GPT write a function for you and then write a different version of the function using a different algorithm along with a test (e.g. a fuzz test) to check whether two functions produce the same output given the same input. This makes it less likely that an error will slip through because both algorithms would have to be produce the same incorrect output for the same input.