xiaolovewei

摘要： Given a sorted array, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space fo 阅读全文

摘要： Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: 阅读全文

摘要： parentheses:括号 Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets mus 阅读全文

摘要： Write a function to find the longest common prefix string amongst an array of strings. 找出所有字符串中的共同字符串前缀。 方法一：让第一个字符串作为基准，遍历该字符串，依次将该字符串中的每个字符跟其他所有字符串相 阅读全文

摘要： Determine whether an integer is a palindrome. Do this without extra space. Some hints: Could negative integers be palindromes? (ie, -1) If you are thi 阅读全文

摘要： Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have ex 阅读全文