摘要：
Problem Definition：Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return in... 阅读全文
摘要：
Problem Definition:Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be chan... 阅读全文
摘要：
Problem Definition:Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty ce... 阅读全文