摘要：
Given a list, rotate the list to the right by k places, where k is non-negative. For example: Given 1->2->3->4->5->NULL and k = 2, return 4->5->1->2-> 阅读全文
摘要：
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]. Not 阅读全文
摘要：
Given an array and a value, remove all instances of that value in place and return the new length. Do not allocate extra space for another array, you 阅读全文