👉 Pre-decrement is a function in programming that negates a value, which means it changes the sign of the value. It's commonly used to reverse or invert a number. For example: ```python n = 10 pre_decrement(n) ``` The result is `10`. Here's a Python implementation: ```python def pre_decrement(x): return -x # Example usage n = 5 print(pre_decrement(n)) ``` In
