James Pan

原题网址：https://leetcode.com/problems/fraction-to-recurring-decimal/ Given two integers representing the numerator and denominator of a fraction, return the fraction in string format. If the frac

原题网址：https://leetcode.com/problems/evaluate-reverse-polish-notation/ Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand m

原题网址：https://leetcode.com/problems/divide-two-integers/ Divide two integers without using multiplication, division and mod operator. If it is overflow, return MAX_INT. 方法一：使用长整数处理溢出问题。 publi

原题网址：https://leetcode.com/problems/multiply-strings/ Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large

原题网址：https://leetcode.com/problems/plus-one/ 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 i

原题网址：https://leetcode.com/problems/add-binary/ Given two binary strings, return their sum (also a binary string). For example, a = "11" b = "1" Return "100". 方法一：使用字符串来表示。 public class So

原题网址：https://leetcode.com/problems/add-strings/ Given two non-negative numbers num1 and num2 represented as string, return the sum of num1 and num2. Note: The length of both num1 and num2