摘要：
描述 Rotate an array of n elements to the right by k steps. For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4]. 阅读全文
摘要：
描述 Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and t 阅读全文
摘要：
描述 Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the 阅读全文
摘要：
描述 Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums = [0, 阅读全文