摘要：
1.Contains Duplicate 题目链接 题目要求： Given an array of integers, find if the array contains any duplicates. Your function should return true if any val... 阅读全文
摘要：
题目链接 题目要求： Given an array of integers, every element appearstwiceexcept for one. Find that single one. Note: Your algorithm should have a linear... 阅读全文
摘要：
题目链接 题目要求： Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules. The Sudoku board could be partially filled, where empty cells... 阅读全文
摘要：
1. Two Sum 题目链接 题目要求： Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum shoul... 阅读全文
摘要：
题目链接 题目要求： Given a non-negative number represented as an array of digits, plus one to the number. The digits are stored such that the most signif... 阅读全文