摘要：卢卡斯定理 注意特判底数和模数相等的情况 http://www.cnblogs.com/poorpool/p/8532809.html cpp include include include include include define ll long long using namespace st 阅读全文

摘要：当 p 为质数时 $$c_m^n \equiv c_{m\%p}^{n\%p} c_{m/p}^{n/p}\pmod p$$ 模版,注意这其中的逆元求法 cpp include include include include include define ll long long using nam 阅读全文