LeetCode Tips: The question description and examples (Chinese & English) are in the code. Easy Two Sum(两数之和) Reverse Integer(反转整数) Palindrome Number(回文数) Roman to Integer(罗马数字转整数) Longest Common Prefix(最长公共前缀) Valid Parentheses(有效的括号) Merge Two Sorted Lists(合并两个有序链表) Remove Duplicates from Sorted Array(删除排序数组中的重复项) Remove Element(移除元素) Implement strStr()(实现strStr()) Search Insert Position(搜索插入位置) Count and Say(报数) Maximum Subarray(最大子序和) Length of Last Word(最后一个单词的长度) Plus One(加一) Add Binary(二进制求和) Medium Hard