摘要：题目 You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sing 阅读全文

摘要：题目： 228. Summary Ranges 228. Summary Ranges Given a sorted integer array without duplicates, return the summary of its ranges. For example, given [0,1 阅读全文

摘要：题目： 273. Integer to English Words Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 阅读全文

摘要：题目： Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive in 阅读全文

摘要：题目 Divide two integers without using multiplication, division and mod operator. If it is overflow, return MAX_INT 链接 https://leetcode.com/problems/div 阅读全文