题意:
求n!的最后一位非零数。
题目:
The expression N!, read as “N factorial,” denotes the product of the first N positive integers, where N is nonnegative. So, for example, N N! 0 1 1 1 2 2 3 6 4 24 5 120 10 3628800
For this prob…
题意:
有n个人,其中有m组,两两互斥,现在要分成两个班,但最终求的确是最多有多少对不互斥的。
题目:
链接:https://ac.nowcoder.com/acm/contest/16741/F 来源:牛客网 The big day…