摘要： Given n points on a 2D plane, find the maximum number of points that lie on the same straight line. 思路：对于某一点来说，在经过该点的直线中选取节点数量最多的直线；对于全局来说，必定是某个局部点满足条 阅读全文

摘要： Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maxim 阅读全文

摘要： Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively. Below is one possible representati 阅读全文

摘要： Given a string S and a string T, count the number of distinct subsequences of T in S. A subsequence of a string is a new string which is formed from t 阅读全文