<|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
Write a code snippet to find all combinations of 3 numbers in the array that sum to zero.
[3, 5, -2, 1, -1, 0, 4]<|im_end|>
<|im_start|>assistant
[[3, -2, 1], [5, -1, -4], [5, 1, -4], [-2, 0, 2]]<|im_end|>
