NCC__dapeng的博客

先贴一下树状数组的模板代码： 1 int lowbit(int i) 2 { 3 return i & -i;//或者是return i-(i&(i-1));表示求数组下标二进制的非0最低位所表示的值 4 } 5 void update(int i,int val)//单点更新 6 { 7 while(i<=n){ 8 ...

Considernninitial strings of lower case letters, where no initial string is a prefix of any other initial string. Now, consider choosingkkof the strings (no string more than once), and concatenati...

这里给出两篇讲解非常详细的字典树博客：https://blog.youkuaiyun.com/piaocoder/article/details/47836559https://blog.youkuaiyun.com/SunnyYoona/article/details/43900425第一篇更注重于算法模板，而第二篇更注重于算法讲解。这里给出综合两篇文章的算法代码：#include <bit...