typestatusdateslugsummarytagscategoryiconpasswordcomment组合数学一般涉及到,需要预处理。预处理n个数的阶层和阶层的逆元,用于组合运算。卡特兰数括号序列匹配问题可以用卡特兰数结论解决。n对括号有多少中匹配方式?Author:E1ainayURL:https://e1ainay.top/article/alogrithmwiki/combinmathCopyright:All articles in this blog, except for special statements, adopt BY-NC-SA agreement. Please indicate the source!Relate Posts树状数组多项式数论浅谈二分OI算法模板与思想记录多项式数论