摘要：
Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified.You shoul... 阅读全文
摘要：
Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"Return "100".解题思路：JAVA实现如下：static public String addBinar... 阅读全文
摘要：
Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant digit is at... 阅读全文
摘要：
Validate if a given string is numeric. Some examples:"0" => true" 0.1 " => true"abc" => false"1 a" => false"2e10" => trueNote: It is intended for t... 阅读全文
摘要：
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.N... 阅读全文