wybooooooooo的博客

链接：https://www.nowcoder.com/acm/contest/145/A来源：牛客网 时间限制：C/C++ 1秒，其他语言2秒空间限制：C/C++ 262144K，其他语言524288KSpecial Judge, 64bit IO Format: %lld题目描述You have a complete bipartite graph where each p...

A square-free integer is an integer which is indivisible by any square number except 11. For example, 6 = 2 \cdot 36=2⋅3 is square-free, but 12 = 2^2 \cdot 312=22⋅3 is not, because 2^222 is a square n...

 26.89%  1000ms  131072KA prime number (or a prime) is a natural number greater than 11 that cannot be formed by multiplying two smaller natural numbers.Now lets define a number NN as the supreme...