摘要:
ThefigurebelowshowsPascal'sTriangle:BabyHdividesPascal'sTriangleintosomeDiagonals,likethefollowingfigure:BabyHwantstoknowthesumofKnumberinfrontontheMt... 阅读全文
摘要:
对于C(n, m) mod p。这里的n,m,p(p为素数)都很大的情况。就不能再用C(n, m) = C(n - 1,m) + C(n - 1, m - 1)的公式递推了。这里用到Lusac定理For non-negative integersmandnand a primep, the foll... 阅读全文