what does this function mean? when reading api, its explanation is not very clear.
what does this function mean? when reading api, its explanation is not very clear.
two requirements need to be met at the same time:
The "potential" of each element e in1 and a should be less than or equal to the potential of the corresponding element in b. There is at least one element f in
2 and b, whose potential is greater than that of the corresponding element in a.
the meaning of Article 1 is more intuitive, while the meaning of Article 2 may not be easy to understand at first glance. Here is a brief explanation.
Article 1 requires that the potential of the element in an is less than or equal to the potential of the element in b, while Article 2 requires that the potential of the element in a cannot be equal to the potential of the element in b, but there must be at least one less than before it can be called "proper subcollection".