摘要：Really interesting O(n) problem. Just like playing.. so actually working on algorithm problems is like playing games!class Solution {public: int ma... 阅读全文

摘要：One TopCoder article introduces a very interesting alternative solution to Longest Common Sequences problem.It is based on this statement (http://comm... 阅读全文

摘要：Binary Tree *-order traversal by recursion is trivial. But their iteration version deserves a look:Pre-Orderclass Solution { vector ret;public: ... 阅读全文

摘要：没什么难的，提示已经说得很明白了。HihoCoder目前还不支持C++11，囧..#include #include #include #include #include #include using namespace std;//struct Node{ Node(char rc) : c... 阅读全文