James Pan

原题网址：https://leetcode.com/problems/power-of-three/ Given an integer, write a function to determine if it is a power of three. Follow up: Could you do it without using any loop / recursion? 方

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/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