With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: It is impossible to test an algorithm on all possible inputs. As the complexity generally increases with the size of the input, the complexity is typically expressed as a function of the size (in bits) of the input, and therefore, the complexity is a function of. However, the complexity of an algorithm may vary dramatically for different inputs of the same size. Therefore, several complexity functions are commonly used.
text_B: Can an algorithm be tested for all possible scenarios?
NO.