分类： 算法与数据结构

Given an array of integers, find if the array contains Continue reading 217. Contains Duplicate

  Write an algorithm to determine if a number is &Continue reading 202. Happy Number

Given a positive integer, return its corresponding coluContinue reading 168. Excel Sheet Column Title

Given an array of integers that is already sorted in asContinue reading 167. Two Sum II – Input array is sorted

Design a stack that supports push, pop, top, and retrieContinue reading 155. Min Stack